C Program to create a Star of Numbers in C

C Program to create a Star of Numbers in C

main()
{
int i,j,k;
clrscr();
for(i=1;i<=3;i++)  
{   
for(j=1;j<=3;j++)   
{   
for(k=1;k<=3;k++)    
{
 if(i==j||j==k||i==k)    
{    
continue;    
}   
else    
{    
printf("\n%d%d%d",i,j,k);    
}    
}   
}   
}     
getch();
}    

Related Links :

C Program to Sort an array in ascending order

C Program to Sort an array in ascending order

#include
#include
 void main()
 {
  int num[10],i,j,temp;
  clrscr();
  printf("\n Enter 10 values of an array...........\n");
  for(i=0;i<10;i++)
   scanf("%d",&num[i]);

 printf("\n array before sort .........\n");
  for(i=0;i<10;i++)
   printf("%d\t",num[i]);

 for(i=0;i<9;i++)
 {
  for(j=i+1;j<10;j++)
  {
   if(num[i]<=num[j])
   {
    temp=num[i];
    num[i]=num[j];
    num[j]=temp;
   }
  }
 }

 printf("\n array after sort .........\n");
  for(i=0;i<10;i++)
   printf("%d\t",num[i]);

   getch();
  }

Related Links :

C Program to swap the numbers by using Pointers and user defined function

C Program to swap the numbers by using Pointers and user defined function.

#include
#include
void swap(int,int);
void swap1(int *,int *);
void main()
{
  int x,y;
  clrscr();
  printf("\n Enter two values :");
  scanf("%d%d",&x,&y);
  printf("\n before swap pass by values.........\n");
  printf("\n x=%d\ty=%d",x,y);
  swap(x,y);       //pass by value
  printf("\n after swap by values.........\n");
  printf("\nx=%d\ty=%d",x,y);

  printf("\n before pass by address.........\n");
  printf("\n\tx=%d\ty=%d",x,y);
  swap1(&x,&y);
  printf("\n after pass by address .........\n");
  printf("\\tnx=%d\ty=%d",x,y);
  getch();
  }
void swap(int a,int b)
{
 int t;
 t=a;
 a=b;
 b=t;
}
void swap1(int *a,int *b)
{
 int t;
 t=*a;
 *a=*b;
 *b=t;

Related Links :

C Program to Find Factorial of given number except negative number

C Program to Find Factorial of given number except negative number.

#include
#include
void main()
{
int n,num;
clrscr();
long fact=1;
printf("\n enter the number");
scanf("%d",&n);
num=n;
if(n<0) printf("no factorial of negative number"); else { while(n>1)
{
fact*=n;
n--;
}
printf("factorial of %d=%ld",num,fact) ;
}
getch();
}

Related Links :

C Program to enter employee record & search the employee by employee ID by using structures in C

C Program to enter employee record & search the employee by employee ID by using structures in C

#include
#include
#include
struct employee
{
 char name[20];
 int age;
 float salary;
 int empid;
};
 void SearchEmployee(struct employee*);
 void main()
 {
  struct employee e1[5];
  int i;
  clrscr();
  printf("\n Enter the details of 5 employee ..........\n\n");
  for(i=0;i<5;i++)
  {
  fflush(stdin);
   printf("\n enter Name :");
   gets(e1[i].name);

   printf("\n enter age ,salary and empid of %d employee :",i+1);
   scanf("%d%f%d",&e1[i].age,&e1[i].salary,&e1[i].empid);
  }
  SearchEmployee(e1);
 getch();
}
 void SearchEmployee(struct  employee * ptr)
 {
  int i,id;
  printf("\n enter employee id :");
  scanf("%d",&id);
   for(i=0;i<5;i++)
   {
     if(ptr[i].empid==id)
     {
      printf("\n Employee name=%s",ptr[i].name);
      printf("\n Employee Age=%d",ptr[i].age);
      printf("\n Employee id=%d",ptr[i].empid);
      printf("\n Employee salary=%f",ptr[i].salary);
     }
  }
}
 void link()
 {
  float f,*ptr;
  ptr=&f;
  }

Related Links :

C Program to convert string to integer

C Program to convert string to integer

Solution 1:

#include
#include
int main(){
    char str[50];
    int number;

    //Accepting a numer in string format
    printf("Enter any number as a string : ");
    scanf("%s",str);
   
    //Converting string into the number;
    number = atoi(str);
         if(number==0 && str[0]!='0')
             printf("\nInvalid number");
         else
             printf("\n Equivalent number is : %d",number);
    return 0;
}

Solution 2:

#include
#include
#include
#include

char * toString(int);
int main(){
    int number;
    char *string;

    //Accepting a number from user
    printf("Enter any integer number : ");
    scanf("%d",&number);

    //Checking number is valid or not
    if(isdigit(number)==0){
         printf("\nInvalid number");
         //exit(1);  //to exit from program
    }

    //Converting int to string
    string = toString(number);

    //printing the string in console
    printf("\nEqivalent string: %s",string);
    return 0;   
}

//function to conver int into string
char * toString(int num){
    static char str[50];
    char *ptr =(char *) #
    int i,length=0,temp,le;
    temp=num;
    while(temp){
         temp = temp/10;
         length++;
    }
    le=length;
    printf("le %d",length);
    for(i=0;i<=le;i++){
         printf("%d",num/pow(10,length) + 48);
         num= num + (pow(10,length--));
    }
    str[i]='\0';
    return str;
}

Related Links :

Printing Char in C , Type of Printf Functions in C

These predefined functions has been defined in the header file stdio.h
Some important functions are:

1. printf
2. cprintf
3. fprintf
4. vprintf
5. sprint
6. vfprintf
7. vsprintf
8. fputc
9. putc
10. putw
11. fputchar
12. puts
13. putchar
14. fwrite

Related Links :

Program to display the entire environments vector

#include
int main(int count,char *arg[],char *argvect[]){
    int i=0;
    while(argvect[i]) {
         printf("\n%s",argvect[i]);
         i++;
    }
    return 0;
}

Related Links :

c program to create dos command dir

#include
#include
int main(int count,char *argv[]){
    struct find_t q ;
    int a;
    if(count==1)
         argv[1]="*.*";
    a = _dos_findfirst(argv[1],1,&q);
    if(a==0){
         while (!a){
             printf(" %s\n", q.name);
             a = _dos_findnext(&q);
         }
    }
    else{
         printf("File not found");
    }
    return 0;
}

Related Links :

Program to create a table of given number in C

#include
#include

void main()
{
 int num,i;
 clrscr();

 printf("\nENTER THE NUMBER OF WHICH TABLE IS TO BE PRINTED : ");
 scanf("%d",&num);

 for(i=1;i<11;i++)
 {
  printf("\n%d x %2d = %2d",num,i,(num*i));
 }
 getch();
}

Related Links :

KAUN BANEGA CROREPATI Game Program in C

#include
#include

void question1();
void main()
{
 clrscr();

 printf("\n\n\n\n\n\n\t\t\t\t  ______________\
 \n\t\t\t\t | Hello And WELCOME TO\t|\
 \t\t\t\t\t\t\t | KAUN BANEGA\t|\
 \t\t\t\t\t\t\t |  CROREPATI\t|\
 \n\t\t\t\t |______________|\n");
 getche();
 question1();
 getch();
}
char a,b,c,d,A,B,C,D,ans;
void question2();
void question1()
{
 clrscr();
 fflush(stdin);
 printf("\nQ1.What does AC and DC stand for in the electrical field?");
 printf("\n A. A Rock Band from Australia\t B. Alternating Current and Direct Current");

 printf("\n C. Average Current\t and Discharged Capacitor\
 \nD. Atlantic City and District of Columbia  ");
 scanf("%c",&ans);
 switch(ans)
 {
  case 'A':
  case 'a':
  case 'C':
  case 'c':
  case 'D':
  case 'd':
   printf("\n\nWRONG ANSWER!!");
  break;
  case 'B':
  case 'b':
   printf("\n\nCORRECT ANSWER!!");
   printf("\n\nYOU WON Rs.1,000!!");
  break;
  default:
   printf("\n\nIMPROPER CHOICE!!");
 }

 if(ans == 'B' || ans == 'b')
 {
  getche();
  clrscr();
  question2();
 }
}
void question3();
void question2()
{
 clrscr();
 fflush(stdin);

 printf("\nQ2. Sometimes computers and cash registers in a foodmart are connected to a UPS system. What does UPS mean?");
 printf("\nA. United Parcel Service \t B. Uniform Product Support");
 printf("\nC. Under Paneling Storage\t D.Uninterruptable Power Supply");
 scanf("%c",&ans);
 switch(ans)
 {
  case 'A':
  case 'a':
  case 'B':
  case 'b':
  case 'C':
  case 'c':
   printf("\n\nWRONG ANSWER!!");
  break;
  case 'D':
  case 'd':
  {
   printf("\n\nCORRECT ANSWER!!");
   printf("\n\nYOU WON Rs.2,000!!");
  }
  break;
  default:
   printf("\n\nIMPROPER CHOICE!!");
 }

 if(ans == 'D' || ans == 'd')
 {
  getche();
  clrscr();
  question3();
 }

}
void question4();
void question3()
{
 clrscr();
 fflush(stdin);

 printf("Q3.Who is the author of Hamlet?");
 printf("\nA. Christopher Marlowe\t B. William Shakespeare");
 printf("\nC. Geoffrey Chaucer\\t D. Edith Wharton");
 scanf("%c",&ans);
 switch(ans)
 {
  case 'A':
  case 'a':
  case 'C':
  case 'c':
  case 'D':
  case 'd':
   printf("\n\nWRONG ANSWER!!");
  break;
  case 'B':
  case 'b':
  {
   printf("\n\nCORRECT ANSWER!!");
   printf("\n\nYOU WON Rs.3,000!!");
  }
  break;
  default:
   printf("\n\nIMPROPER CHOICE!!");
 }
 if(ans == 'B' || ans == 'b')
 {
  getche();
  clrscr();
  question4();
 }

}
void question5();
void question4()
{
 clrscr();
 fflush(stdin);

 printf("Q4.What frequency range is the High Frequency band?");
 printf("\nA. 100 kHz\tB. 1GHz");
 printf("\nC. 30 to 300 MHz\t D. 3 to 30 MHz");
 scanf("%c",&ans);
 switch(ans)
 {
  case 'A':
  case 'a':
  case 'B':
  case 'b':
  case 'C':
  case 'c':
   printf("\n\nWRONG ANSWER!!");
  break;
  case 'D':
  case 'd':
  {
   printf("\n\nCORRECT ANSWER!!");
   printf("\n\nYOU WON Rs.5,000!!");
  }
  break;
  default:
   printf("\n\nIMPROPER CHOICE!!");
 }
 if(ans == 'D' || ans == 'd')
 {
  getche();
  clrscr();
  question5();
 }

}
void question6();
void question5()
{
 clrscr();
 fflush(stdin);
 printf("Q5.What does EPROM stand for?");
 printf("\nA. Electric Programmable Read Only Memory\
 \n    B. Erasable Programmable Read Only Memory")

 printf("\n| C. Evaluable Philotic Random Optic Memory \
 \n   D. Every Person Requires One Mind\t\t\t|");
 scanf("%c",&ans);
 switch(ans)
 {
  case 'A':
  case 'a':
  case 'C':
  case 'c':
  case 'D':
  case 'd':
   printf("\n\nWRONG ANSWER!!");
  break;
  case 'B':
  case 'b':
  {
   printf("\n\nCORRECT ANSWER!!");
   printf("\n\nYOU WON Rs.10,000!!");
  }
  break;
  default:
   printf("\n\nIMPROPER CHOICE!!");
 }
 if(ans == 'B' || ans == 'b')
 {
  getche();
  clrscr();
  question6();
 }

}
void question7();
void question6()
{
 clrscr();
 fflush(stdin);
 printf("Q6.Which motor is NOT suitable for use as a DC machine?");
 printf("\nA. Permanent magnet motor \t B. Series motor");
 printf("\nC. Squirrel cage motor \t D. Synchronous motor");
 scanf("%c",&ans);
 switch(ans)
 {
  case 'A':
  case 'a':
  case 'B':
  case 'b':
  case 'D':
  case 'd':
   printf("\n\nWRONG ANSWER!!");
  break;
  case 'C':
  case 'c':
  {
   printf("\n\nCORRECT ANSWER!!");
   printf("\n\nYOU WON Rs.25,000!!");
  }
  break;
  default:
   printf("\n\nIMPROPER CHOICE!!");
 }
 if(ans == 'C' || ans == 'c')
 {
  getche();
  clrscr();
  question7();
 }

}
void question8();
void question7()
{
 clrscr();
 fflush(stdin);
 printf("Q7.Compact discs, (according to the original CD specifications)hold how many minutes of music?");
 printf("\nA. 74 mins\t B. 56 mins");
 printf("\nC. 60 mins\t D. 90 mins");
 scanf("%c",&ans);

 switch(ans)
 {
  case 'B':
  case 'b':
  case 'C':
  case 'c':
  case 'D':
  case 'd':
   printf("\n\nWRONG ANSWER!!");
  break;
  case 'A':
  case 'a':
  {
   printf("\n\nCORRECT ANSWER!!");
   printf("\n\nYOU WON Rs.50,000!!");
  }
  break;
  default:
   printf("\n\nIMPROPER CHOICE!!");
 }
 if(ans == 'A' || ans == 'a')
 {
  getche();
  clrscr();
  question8();
 }

}
void question9();
void question8()
{
 clrscr();
 fflush(stdin);
 printf("Q8.Who was played by Kenneth Branagh in 'Hamlet' (1996)?");
 printf("\n| A. Horatio\t\t     |\t B. Laertes\t\t\t|");
 printf("\n| C. Polonius\t\t     |\t D. Hamlet\t\t\t|");
 scanf("%c",&ans);
 switch(ans)
 {
  case 'A':
  case 'a':
  case 'B':
  case 'b':
  case 'C':
  case 'c':
   printf("\n\nWRONG ANSWER!!");
  break;
  case 'D':
  case 'd':
  {
   printf("\n\nCORRECT ANSWER!!");
   printf("\n\nYOU WON Rs.1,00,000!!");
  }
  break;
  default:
   printf("\n\nIMPROPER CHOICE!!");
 }
 if(ans == 'D' || ans == 'd')
 {
  getche();
  clrscr();
  question9();
 }

}
void question10();
void question9()
{
 clrscr();
 fflush(stdin);
 printf("Q9.Which famous national leader of India has written books on the ancient Greek philosopher Socrates and the ancient Roman king Marcus Aurelius?");
 printf("\nA. Mahatma Gandhi\t B. Jawaharlal Nehru");
 printf("\nC. Bal Gangadhar Tilak\t D. C.Rajagopalachari");
 scanf("%c",&ans);
 switch(ans)
 {
  case 'A':
  case 'a':
  case 'B':
  case 'b':
  case 'C':
  case 'c':
   printf("\n\nWRONG ANSWER!!");
  break;
  case 'D':
  case 'd':
  {
   printf("\n\nCORRECT ANSWER!!");
   printf("\n\nYOU WON Rs.10,00,000!!");
  }
  break;
  default:
   printf("\n\nIMPROPER CHOICE!!");
 }
 if(ans == 'D' || ans == 'd')
 {
  getche();
  clrscr();
  question10();
 }

}
void question11();
void question10()
{
  clrscr();
  fflush(stdin);
  printf("\n\nQ10.Sishu is the literary work of which Indian author?");
  printf("\nA. Jawaharlal Nehru");
  printf("\nB. Arundhati Roy");
  printf("\nC. Rabindranath Tagore");
  printf("\nD. Vikram Seth \n");
  scanf("%c",&ans);

  switch(ans)
  {
   case 'A':
   case 'a':
   case 'B':
   case 'b':
   case 'D':
   case 'd':
    printf("\n\nWRONG ANSWER!!");
   break;
   case 'C':
   case 'c':
   {
    printf("\n\nCORRECT ANSWER!!");
    printf("\n\nYOU WON Rs.50,00,000!!");
   }
   break;
   default:
    printf("\n\nIMPROPER CHOICE!!");
  }

  if(ans == 'C' || ans == 'c')
  {
   getche();
   clrscr();
   question11();
  }

}
void question11()
{
  clrscr();
  fflush(stdin);
  printf("\n\nQ11.What was the active medium used in the first working laser ever constructed?");
  printf("\nA. Helium-neon gas");
  printf("\nB. A ruby rod");
  printf("\nC. A diamond block ");
  printf("\nD. Carbon dioxide gas\n");
  scanf("%c",&ans);

  switch(ans)
  {
   case 'A':
   case 'a':
   case 'C':
   case 'c':
   case 'D':
   case 'd':
    printf("\n\nWRONG ANSWER!!");
   break;
   case 'B':
   case 'b':
   {
    printf("\n\nCORRECT ANSWER!!");
    printf("\n\nYOU WON Rs.1,00,00,000!!");
   }
   break;
   default:
    printf("\n\nIMPROPER CHOICE!!");
  }

  if(ans == 'B' || ans == 'b')
  {
   getche();
   clrscr();
   gotoxy(30,8);
   printf("CONGRATULATIONS!!\n \
   \t Thank you!!");
  }

Related Links :

Download Turbo C for Windows 7

The C Programming version For Windows 7 in Full Screen Mode


Download Now

Related Links :

Pointer Comparison in C

#include < stdio.h >
int main ()
{
int data[10],i;
int* p1,*p2;
for (i = 0; i <10;i++) { data[i] = i; } p1 = &data [1]; p2 = &data [2]; if (p1 > p2)
{
printf ("p1 is greater than p2\n");
}
else
{
printf ("p2 is greater than p1\n");
}
}

output:p2 is greater than p1

Related Links :

getopt_long Function in C

This function is defined in getopt.h

Syntax:
-------
int *getopt_long* (int argc, char *const *argv, const char *shortopts, const struct option *longopts, int *indexptr)

Usage:
------
while (getopt_long (argc, argv, shortopts, longopts, index) != -1) {
}

Related Links :

c program to print the number of digits in a decimal number

#include
int main()
{
   int n,count=0,x;
   printf("ENter the decimal number\n");
   scanf("%d",&n);
   x=n;
   while(n>0)
   {
       count++;
       n=n/10;
   }
   printf("Number %d has %d digits\n",x,count);
}

output
ENter the decimal number
2345
Number 2345 has 4 digits

Related Links :

program that converts characters like newline, blank and tab into visible sequence like \n, \b and \t

#include < stdio.h>
#include< conio.h>
#include< string.h>
void main()
{
   char str1[100],str2[100];
   int i=0,j=0;
   clrscr();
   printf("Enter the string with blanks,tabs and new line\n");
   printf("At the end put full stop.\n");
   gets(str1);
   while(str1[i]!='.')
   {
    switch(str1[i])
   {
   case ' ':
              {
              str2[j]=';';
              j++;
              str2[j]='b';
              j++;
              i++;
                break;
             }
  case '\t':
              {
               str2[j]=';';
              j++;
              str2[j]='t';
              j++;
              i++;
                break;
              }
  case '\n':
              {
              str2[j]=';';
              j++;
              str2[j]='n';
              j++;
              i++;
                break;
              }
  default :
             {
             str2[j]=str1[i];
             j++;
             i++;
              break;
             }
   }
 }
 str2[j]='\0';
 for(i=0;i<=strlen(str2);i++)
 {
 if(str2[i]==';')
 printf("\\");
 else
 printf("%c",str2[i]);
 }
   getch();
}

Related Links :

C programs on searching word in given array

#include < stdio.h >
#include< conio.h >
void main()
{
   char ch;
   int blank=1,character=0,line=1;
   clrscr();
   printf("Enter the string with blanks,tabs and new line\n");
   printf("At the end put a full stop.\n");
   while(ch!='.')
   {
   /* read a character from the standard input stream */
   ch = getc(stdin);
   if(ch==' ')
   blank++;
   else if(ch=='\n')
   line++;
   else if(ch!='.')
   character++;
   }
   printf("\nWord %d\nCharacters %d\nLine %d",blank,character,line);
   getch();
}

Related Links :

define 2d character array in C programming

#include< stdio.h >
#include< string.h >
void main()
{
char month[12][10];
int i,j;
clrscr();
for(i=0;i< 12;i++)
{
printf("Enter the month name:-");
scanf("%s",&month[i]);
}
printf("Month names are:-\n");
for(i=0;i< 12;i++)
{
j=0;
while(month[i][j]!='\0')
{
printf("%c",toupper(month[i][j]));
j++;
}
printf("\n");
}
getch();
 }

Related Links :

C Program to COPY DATA FROM ONE FILE TO ANOTHER File

#include
int main(){
  FILE *p,*q;
  char file1[20],file2[20];
  char ch;
  printf("\nEnter the source file name to be copied:");
  gets(file1);
  p=fopen(file1,"r");
  if(p==NULL){
      printf("cannot open %s",file1);
      exit(0);
  }
  printf("\nEnter the destination file name:");
  gets(file2);
  q=fopen(file2,"w");
  if(q==NULL){
      printf("cannot open %s",file2);
      exit(0);
  }
  while((ch=getc(p))!=EOF)
      putc(ch,q);
  printf("\nCOMPLETED");
  fclose(p);
  fclose(q);
 return 0;
}

Related Links :

C Program to CONCATENATE (Join) MANY FILES AND STORE THEM IN One FILE IN C

#include
 void concatenate(FILE *fp1,FILE *fp2,char *argv[],int argc);
 int main(int argc,char *argv[]){
   FILE *fp1,*fp2;
   concatenate(fp1,fp2,argv,argc);
   return 0;
 }

void concatenate(FILE *fp1,FILE *fp2,char **argv,int argc){
   int i,ch;
   fp2=fopen("files","a");
   for(i=1;i<=argc-1;i++){
      fp1=fopen(argv[i],"r");
      while((ch=getc(fp1))!=EOF)
      putc(ch,fp2);
   }
 } 

Related Links :

C PROGRAM TO FIND SIZE OF ANY FILE

#include 
#include 
#include 
void main()
{
    struct stat status;
    FILE *fp;
    fp=fopen("test.txt","r");
    fstat(fileno(fp),&status);
    clrscr();
    printf("Size of file : %d",status.st_size);
    printf("Drive name   : %c",65+status.st_dev);
    getch();
}

Related Links :

c program to know read/write Attributes of given file

#include "time.h"
#include "sys\stat.h"
#include "stdio.h"
void main()
{
    struct stat status;
    FILE *fp;
    stat("test.txt",&status);
    clrscr();
    if (status.st_mode & S_IREAD)
         printf("You have read permission.\n");
    if (status.st_mode & S_IWRITE)
         printf("You have write permission.");
    getch();

}

Related Links :

C program to Find the last date of modification date of any file

#include "time.h"
#include "sys\stat.h"
#include "stdio.h"
void main()
{
    struct stat status;
    FILE *fp;
    fp=fopen("test.txt","r");
    fstat(fileno(fp),&status);
    clrscr();
    printf("Last date of modification : %s",ctime(&status.st_ctime));
    getch();
}

Related Links :

Program to Find location of file with size,Drive in C

#include "time.h"
#include "sys\stat.h"
#include "stdio.h"
void main()

{
    struct stat status;
    FILE *fp;
    fp=fopen("test.txt","r");
    fstat(fileno(fp),&status);
    clrscr();
    printf("Size of file : %d",status.st_size);
    printf("Drive name   : %c",65+status.st_dev);
    getch();
}

Related Links :

PROGRAM TO REMOVE DUPLICATE ELEMENTS IN AN ARRAY USING C

#include
int main(){
  int arr[50];
  int *p;
  int i,j,k,size,n;
  printf("\nEnter size of the array: ");
  scanf("%d",&n);
  printf("\nEnter %d elements into the array: ",n);
  for(i=0;i<=n;i++)
    scanf("%d",&arr[i]);
  size=n;
  p=arr;
  for(i=0;i<=size;i++){
    for(j=0;j<=size;j++){
         if(i==j){
             continue;
         }
         else if(*(p+i)==*(p+j)){
             k=j;
             size--;
             while(k <= size){
                 *(p+k)=*(p+k+1);
                 k++;
              }
              j=0;
          }
      }
  }
  printf("\nThe array after removing duplicates is: ");
  for(i=0;i <= size;i++){
    printf(" %d",arr[i]);
  }
  return 0;
}

Related Links :

SECOND LARGEST NUMBER IN AN UNSORTED ARRAY USING C PROGRAM

#include
int main(){
  int a[50],size,i,big;
  printf("\nEnter the size of the array: ");
  scanf("%d",&size);
  printf("\nEnter %d elements in to the array: ”, size);
  for(i=0;i<=size;i++)
      scanf("%d",&a[i]);
  big=a[0];
  for(i=1;i<=size;i++){
      if(big<=a[i])
           big=a[i];
  }
  printf("\nBiggest: %d",big);
  return 0;
}

Related Links :

C Program to reverse a given string in c

#include
#include
int main(){
    char str[50];
    char *rev;
    printf("Enter any string : ");
    scanf("%s",str);
    rev = strrev(str);
    printf("Reverse string is : %s",rev);
    return 0;
}

Related Links :

Program to generate random numbers in c

#include
#include
#include
int main()
{
    int num;
    randomize();
    //Generating the random number
    num = random(99999);
    //Printing the random number
    printf("%d",num);
    getch();
    return 0;
}

Related Links :

C Program to Search and Remove Duplicate Elements From Given Array

void main()
{
  int a[50],i,pos,size;
  clrscr();
  printf("\n Enter size of An array: ");
  scanf("%d",&size);
  printf("\n Enter %d elements in to the array: ",size);
  for(i=0;i<=size;i++)
            scanf("%d",&a[i]);
  printf("\n Enter position where to delete: ");
  scanf("%d",&pos);
  i=0;
  while(i!=pos-1)
            i++;
  while(i<=10)
  {
            a[i]=a[i+1];
            i++;
  }
  size--;
  for(i=0;i<=size;i++)
            printf(" %d",a[i]);
  getch();
}

Related Links :

C Program to DELETING An ELEMENT FROM Given ARRAY AT DESIRED POSITION

main()
{
  int a[50],i,pos,size;
  clrscr();
  printf("\nEnter size of An array: ");
  scanf("%d",&size);
  printf("\nEnter %d elements in to An array: ",size);
  for(i=0;i<=size;i++)
            scanf("%d",&a[i]);
  printf("\n Enter the position which is to be delete : ");
  scanf("%d",&pos);
  i=0;
  while(i!=pos-1)
            i++;
  while(i<=10)
  {
            a[i]=a[i+1];
            i++;
  }
  size--;
  for(i=0;i<=size;i++)
            printf(" %d",a[i]);
  getch();
}

Related Links :

INSERT AN ELEMENT IN GIVEN ARRAY AT DESIRED POSITION in C Language

#include
int main(){
int a[50],size,num,i,pos,temp;
printf("\n Enter size of An array: ");
scanf("%d",&size);
printf("\nEnter %d elements in to An array: ",size);
for(i=0;iscanf("%d",&a[i]);
printf("\nEnter position and number to insert: ");
scanf("%d %d",&pos,&num);
i=0;
while(i!=pos-1)
i++;
temp=size++;
while(i{
a[temp]=a[temp-1];
temp--;
}
a[i]=num;
for(i=0;iprintf(" %d",a[i]);
return 0;
}

Related Links :

SELECTION SORT Example in C Language ( Sorting Technique)

C Program to show the SELECTION SORT Example. (Sorting Technique)

#include
int main(){
  int s,i,j,temp,a[20];
  printf("\n Please Enter size of an array :");
  scanf("%d",&s);
  printf("\nEnter %d elements in to an array:");
  for(i=0;i<=s;i++)
      scanf("%d",&a[i]);
  for(i=0;i<=s;i++){
      for(j=i+1;j=           if(a[i]>=a[j]){
               temp=a[i];
              a[i]=a[j];
              a[j]=temp;
           }
      }
  }
  printf("\nThe array after sorting is: ");
  for(i=0;i<=s;i++)
      printf(" %d",a[i]);
  return 0;
}

Related Links :

QUICK SORT Algorithm Program in C

QUICK SORT Algorithm Program in C Language Easy To Sort Numbers...

#include
int main(){
  int x[20],size,i;
  printf("\nEnter size of the array :");
  scanf("%d",&size);
  printf("\nEnter %d elements :",size);
  for(i=0;i<=size;i++)
    scanf("%d",&x[i]);
  quicksort(x,0,size-1);
  printf("\nSorted elements :");
  for(i=0;i<=size;i++)
    printf(" %d",x[i]);
  return 0;
}

quicksort(int x[10],int first,int last){
    int pivot,j,temp,i;
     if(first<=last){
         pivot=first;
         i=first;
         j=last;
         while(i<=j){
             while(x[i]<=x[pivot]&&i                 i++;
             while(x[j]>=x[pivot])
                 j--;
             if(i<=j){
                 temp=x[i];
                  x[i]=x[j];
                  x[j]=temp;
             }
         }
         temp=x[pivot];
         x[pivot]=x[j];
         x[j]=temp;
         quicksort(x,first,j-1);
         quicksort(x,j+1,last);
    }
}

Related Links :

Program to Find GCD of Given Number by Recursion Function In C Language

#include
int main()
{
  int n1,n2,gcd;
  printf("\n Enter Any two numbers: ");
  scanf("%d %d",&n1,&n2);
  gcd=findgcd(n1,n2);
  printf("\nGCD of %d and %d is :  %d",n1,n2,gcd);
  return 0;
}


/*Function Body Starts*/ 
int findgcd(int x,int y)
{
     while(x!=y){
          if(x>y)
              return findgcd(x-y,y);
          else
             return findgcd(x,y-x);
     }
     return x;
}

Related Links :

C Program to Find the power of Given Number using Recursion Function

#include
int main(){
  int pow,num;
  long int res;
  long int power(int,int);
  printf("\nEnter a number: ");
  scanf("%d",&num);
  printf("\nEnter power: ");
  scanf("%d",&pow);
  res=power(num,pow);
  printf("\n%d to the power %d is: %ld",num,pow,res);
  return 0;
}
  int i=1;
  long int sum=1;
  long int power(int num,int pow){
      if(i<=pow){
           sum=sum*num;
          power(num,pow-1);
      }
      else
      return sum;
  }

Related Links :

Reverse the given Number Using Recursion Function In C

#include
int main(){
int num,rev;
printf("\nEnter a number :");
scanf("%d",&num);
rev=reverse(num);
printf("\nAfter reverse the no is :%d",rev);
return 0;
}

int sum=0,r;
reverse(int num){
if(num){
r=num%10;
sum=sum*10+r;
reverse(num/10);
}
else
return sum;
return sum;
}

Method 2

#include "stdio.h"

int reverse(int,int );

void main()
{
int no,rev=0;
printf("Enter a number..\n");
scanf("%d",&no);
printf("The reversed number is %d.\n",reverse(no,rev));
}

int reverse(int no,int rev)
{
if(no!=0)
return reverse(no/10,rev*10+no%10);
else
return rev;
}

Method 3

#include
main()
{
int a,i,n,b;
printf("Enter the no:");
scanf("%d",&a);
while(a)
{
b=a%10;
printf("%d",b);
a=a/10;
}
}

Related Links :

CONCATENATION (Joining) OF TWO Different Strings USING Pointers In C Language

#include
int main()
{
  int i=0,j=0;
  char *str1,*str2,*str3;
  puts("Enter first string");
  gets(str1);
  puts("Enter second string");
  gets(str2);
  printf("Before concatenation the strings are\n");
  puts(str1);
  puts(str2);
  while(*str1)
  {
      str3[i++]=*str1++;
  }
  while(*str2)
  {
      str3[i++]=*str2++;
  }
  str3[i]='\0';
  printf("After concatenation the strings are\n");
  puts(str3);
  return 0;
}

Related Links :

LINEAR SEARCH Example in C Language

#include
int main(){
int a[10],i,n,m,c=0;
printf("Enter the size of an array");
scanf("%d",&n);
printf("\nEnter the elements of the array");
for(i=0;i<=n-1;i++){
scanf("%d",&a[i]);
}
printf("\nThe elements of an array are");
for(i=0;i<=n-1;i++){
printf(" %d",a[i]);
}
printf("\nEnter the number to be search");
scanf("%d",&m);
for(i=0;i<=n-1;i++){
if(a[i]==m){
c=1;
break;
}
}
if(c==0)
printf("\nThe number is not in the list");
else
printf("\nThe number is found");
return 0;
}

Related Links :

BINARY SEARCH Example in C Language

#include
int main()
{
  int a[10],i,n,m,c=0,l,u,mid;
  printf("Enter the size of an array->");
  scanf("%d",&n);
  printf("\nEnter the elements of the array->");
  for(i=0;i  {
      scanf("%d",&a[i]);
  }
  printf("\nThe elements of an array are->");
  for(i=0;i  {
      printf(" %d",a[i]);
  }
  printf("\nEnter the number to be search->");
  scanf("%d",&m);
  l=0,u=n-1;
  while(l<=u)
 {
      mid=(l+u)/2;
      if(m==a[mid])
 {
      c=1;
          break;
      }
      else if(m<=a[mid])
 {
      u=mid-1;
      }
      else
      l=mid+1;
  }
  if(c==0)
      printf("\nThe number is not in the list");
  else
      printf("\nThe number is found");
  return 0;
}

Related Links :

C PROGRAM BINARY SEARCH THROUGH RECURSSION Function

#include
int main(){
  int a[10],i,n,m,c,l,u;
  printf("Enter the size of an array =>");
  scanf("%d",&n);
  printf("\nEnter the elements of an array =>");
  for(i=0;i    scanf("%d",&a[i]);
  }
  printf("\nThe elements of an array are =>");
  for(i=0;i    printf(" %d",a[i]);
  }
  printf("\nEnter the number to be search =>");
  scanf("%d",&m);
  l=0,u=n-1;
  c=binary(a,n,m,l,u);
  if(c==0)
    printf("\nThe number is not in the list");
  else
     printf("\nThe number is found");
   return 0;
 }

 int binary(int a[],int n,int m,int l,int u)
{
   int mid,c=0;
   if(l<=u){
     mid=(l+u)/2;
      if(m==a[mid])
 {
          c=1;
      }
      else if(m<=a[mid])
 {
          return binary(a,n,m,l,mid-1);
      }
      else
          return binary(a,n,m,mid+1,u);
    }
   else
         return c;
  }

Related Links :

c program to find factorial of 100 or very large numbers Given by User In C

c program to find factorial of 100 or very large numbers Given by User in C

#include
#define MAX 10000
void factorialof(int);
void multiply(int);
int length = 0;
int fact[MAX];

int main(){
    int num;
    int i;

    printf("Enter any integer number : ");
    scanf("%d",&num);
   
    fact[0]=1;

    factorialof(num);
   
    printf("Factorial is : ");
    for(i=length;i>=0;i--)
    {
         printf("%d",fact[i]);
    }
    return 0;
}
void factorialof(int num)
{
    int i;
    for(i=2;i<=num;i++)
{
         multiply(i);
    }
}
void multiply(int num)
{
    long i,r=0;
    int arr[MAX];
    for(i=0;i<=length;i++)
       {
                arr[i]=fact[i];
        }

    for(i=0;i<=length;i++){
         fact[i] = (arr[i]*num + r)%10;
         r = (arr[i]*num + r)/10;
         //printf("%d ",r);
    }
    if(r!=0){
         while(r!=0){
             fact[i]=r%10;
             r= r/10;
             i++;
         }
    }
    length = i-1;   
}

Related Links :

TEST

Get your potbellied pig to mate

Related Links :

Scope Resolution in C++

namespace X {
  class Y {
    static int i;
  public:
    void f();
  };
  class Z;
  void func();
}
int X::Y::i = 9;
class X::Z {
  int u, v, w;
public:
  Z(int i);
  int g();
};
X::Z::Z(int i) { u = v = w = i; }
int X::Z::g() { return u = v = w = 0; }
void X::func() {
  X::Z a(1);
  a.g();
}
int main(){} ///:~

Related Links :

Basic Program to create Rectangle in Cpp

class Rectangle {
  int width, height;
public:
  Rectangle(int w = 0, int h = 0)
    : width(w), height(h) {}
  int getWidth() const { return width; }
  void setWidth(int w) { width = w; }
  int getHeight() const { return height; }
  void setHeight(int h) { height = h; }
};

int main() {
  Rectangle r(19, 47);
  // Change width & height:
  r.setHeight(2 * r.getWidth());
  r.setWidth(2 * r.getHeight());
} ///

Related Links :

C Program to create a calendar for DOS

 


#include 
#include 
#include "scaldate.h"

/*
**  calendar generation information
*/

int days[12]    = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
char *month[12] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
                   "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
char *daynames[8] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"};

/*
**  box drawing stuff
*/

#if defined(MSDOS) || defined(_WIN32)
 const char *topborder = "\xd5\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
                         "\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
                         "\xcd\xcd\xcd\xcd\xb8";
 const char *midborder = "\xc6\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
                         "\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
                         "\xcd\xcd\xcd\xcd\xb5";
 const char *botborder = "\xd4\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
                         "\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
                         "\xcd\xcd\xcd\xcd\xbe";
 const char *line = "\xb3";
#else
 const char *line = "";
#endif

/*
**  tell 'em they messed up
*/

void usage(void)
{
      puts("Usage: CAL [m y]");
      puts("where: m = month (1 - 12)");
      puts("       y = year (1 - 99, 1800 - 3000)");
      exit(-1);
}

/*
**  here's where the real work's done
*/

int main(int argc, char *argv[])
{
      int day, day_1, numdays, i, j;
      unsigned yr, mo;

      if (argc < 3 && argc > 1)
            usage();

      if (argc >= 3)
      {
            yr = atoi(argv[2]);
            mo = atoi(argv[1]);
      }
      else
      {
            long dnow = today();
            unsigned dy;

            scalar_to_ymd(dnow, &yr, &mo, &dy);
      }

      if (!mo || 12 < mo)
            usage();

      if (100 > yr)
            yr += 1900;

      if (3000 < yr || 1800 > yr)
            usage();

      for (i = 0, mo -= 1; i < 3; ++i, ++mo)
      {
            if (!mo)
            {
                  mo = 12;
                  --yr;
            }
            if (12 < mo)
            {
                  mo = 1;
                  ++yr;
            }
            numdays = days[mo - 1];
            if (2 == mo && isleap(yr))
                  ++numdays;
            day_1 = (int)((ymd_to_scalar(yr, mo, 1) - (long)ISO_CAL) % 7L);

#if defined(MSDOS) || defined(_WIN32)
            if (!i)
                  puts(topborder);
#endif
            fputs(line, stdout);
            for (j = 0; j < 7; )
            {
                  fputs(daynames[ISO_CAL + j], stdout);
                  if (7 != ++j)
                        fputc(' ', stdout);
            }
            printf("%s < %s, %d\n%s", line, month[mo - 1], yr, line);

            for (day = 0; day < day_1; ++day)
                  fputs("    ", stdout);
            for (day = 1; day <= numdays; ++day, ++day_1, day_1 %= 7)
            {
                  if (!day_1 && 1 != day)
                        printf("\b%s\n%s", line, line);
                  printf("%3d ", day);
            }
            for ( ; day_1; ++day_1, day_1 %= 7)
                  fputs("    ", stdout);
#if defined(MSDOS) || defined(_WIN32)
            printf("\b%s\n", line);
            if (2 > i)
                  puts(midborder);
            else  puts(botborder);
#else
            fputc('\n', stdout);
#endif
      }
      return 0;
}

Related Links :

C Program to reverse the given string

#include        /* Prototypes for standard Input/Output   */
#include       /* Prototypes for string operations       */

void forward_and_backwards(char line_of_char[], int index);

int main()
{
char line_of_char[80];
int index = 0;

   strcpy(line_of_char, "This is a string.\n");

   forward_and_backwards(line_of_char, index);

   return 0;
}


void forward_and_backwards(char line_of_char[], int index)
{
   if (line_of_char[index]) 
   {
      printf("%c", line_of_char[index]);
      index++;
      forward_and_backwards(line_of_char, index);
   }
   printf("%c", line_of_char[index]);
}

/* OUTPUT :


This is a string.

.gnirts a si sih

*/

Related Links :

C Program to create a file by user defined name enter

#include 
#include 

int main()
{
FILE *fp1;
char oneword[100], filename[25];
char *c;

   printf("Enter filename -> ");
   scanf("%s", filename);            /* read the desired filename  */
   fp1 = fopen(filename, "r");
   if (fp1 == NULL)
   {
      printf("File failed to open\n");
      exit (EXIT_FAILURE);
   }

   do 
   {
      c = fgets(oneword, 100, fp1);  /* get one line from the file */
      if (c != NULL)                
         printf("%s", oneword);      /* display it on the monitor  */
   } while (c != NULL);              /* repeat until NULL          */

   fclose(fp1);

   return EXIT_SUCCESS;
}

Related Links :

Compute the checksum of a file in C

#include 

unsigned checksum(void *buffer, size_t len, unsigned int seed)
{
      unsigned char *buf = (unsigned char *)buffer;
      size_t i;

      for (i = 0; i < len; ++i)
            seed += (unsigned int)(*buf++);
      return seed;
}

#ifdef TEST

#include 

main()
{
      FILE *fp;
      size_t len;
      char buf[4096], *file = "CHECKSUM.C";

      if (NULL == (fp = fopen(file, "rb")))
      {
            printf("Unable to open %s for reading\n", file);
            return -1;
      }
      len = fread(buf, sizeof(char), sizeof(buf), fp);
      printf("%d bytes read\n", len);
      printf("The checksum of %s is %#x\n", file, checksum(buf, len, 0));
}

#endif

Related Links :

concatenate files using CAT function in C

#include 

main(argc, argv)        /* cat: concatenate files */
int argc;
char *argv[];
{
    FILE *fp, *fopen();

    if (argc == 1) /* no args; copy standard input */
         filecopy(stdin);
    else
         while (--argc > 0)
            if ((fp = fopen(*++argv, "r")) == NULL) {
                fprintf(stderr,
                        "cat: can't open %s\n", *argv);
                exit(1);
            } else {
                filecopy(fp);
                fclose(fp);
            }
    exit(0);
}

filecopy(fp)    /* copy file fp to standard output */
FILE *fp;
{
    int c;

    while ((c = getc(fp)) != EOF)
        putc(c, stdout);
}

Related Links :

convert value of string s in double/float format and store in val. return pointer to next unused char

#include "defs.h"
#include "stdtyp.h"
#include "mathcons.h"
#include "mathtyp.h"
#include "ctype.h"

/************************************************************************/
 STRING
astof(s, val) /* convert value of string s in double/float format and 
     store in val.  return pointer to next unused char. */
/*----------------------------------------------------------------------*/
STRING s;
double *val;
{
 STRING astoi();
 double v, fr, tenpow();
 int i;
 BOOL sign;
 char c;

 while (isspace(c = *s))
  s++;
 if (sign = (c IS '-'))
  s++;
 else if (c IS '+')
  s++;
 for (v = 0.0; isdigit(*s); v = 10. * v + (*s++ - '0'));
 if (*s IS '.')
  for (fr = 10.0, s++; isdigit(*s); fr *= 10.)
   v += (*s++ - '0') / fr;
 while (isspace(*s))
  s++;
 if (TOLOWER(*s) IS 'e')
 { if ((i = ((c = *(++s)) IS '-')) OR c IS '+')
   s++;
  while (*s IS '0')
   s++;
  if (i)
   *(--s) = '-';
  s = astoi(s, &i);
  v *= tenpow(i);
 }
 *val = (sign ? -v : v);
 return (s);
}
/*\p*********************************************************************/
 double
atof(s)  /* return value of the string s in double/float format */

/*----------------------------------------------------------------------*/
STRING s;
{
 double x;
 STRING astof();

 astof(s, &x);
 return x; 
}

/************************************************************************/
 LOCAL double
tenpow(n)  /* Return 10.0^n, or -1 on error.  */

/*----------------------------------------------------------------------*/
{
 /********************************************************
  * This array contains 10^(2^n) up to n = BIG10X-1 *
  ********************************************************/
 LOCAL double tentothe2tothe[BIG10X] =
 { 10., 100., 10000., 100000000., 10000000000000000.,
  100000000000000000000000000000000.
#ifdef AZTEC
  , 1.0e64, 1.0e128
#endif

#ifdef SUN
  , 1.0e64, 1.0e128, 1.0e256
#endif
 };

 /********************************************************
  * Also, make this array be 2^n up to 2^(BIG10X-1) *
  ********************************************************/
 LOCAL int twoto[BIG10X] =
 { 1, 2, 4, 8, 16, 32
#ifdef AZTEC
  , 64, 128
#endif

#ifdef SUN
  , 64, 128, 256
#endif
 };

 int i, minus;
 double d;

 if (minus = (n < 0) ? TRUE : FALSE)
  n = -n;
 for (d = 1.0, i = BIG10X; --i >= 0; )
  if (n >= twoto[i])
  { d *= tentothe2tothe[i];
   n -= twoto[i];
  }
 return (minus) ? 1.0 / d : d;
}

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arcsine unction demo in c

#include "math.h"
#include "errno.h"

double arcsine();

double asin(x)
double x;
{
        return arcsine(x,0);
}

double acos(x)
double x;
{
        return arcsine(x,1);
}

#define P1 -0.27368494524164255994e+2
#define P2 +0.57208227877891731407e+2
#define P3 -0.39688862997504877339e+2
#define P4 +0.10152522233806463645e+2
#define P5 -0.69674573447350646411
#define Q0 -0.16421096714498560795e+3
#define Q1 +0.41714430248260412556e+3
#define Q2 -0.38186303361750149284e+3
#define Q3 +0.15095270841030604719e+3
#define Q4 -0.23823859153670238830e+2

#define P(g) ((((P5*g P4)*g P3)*g P2)*g P1)
#define Q(g) (((((g Q4)*g Q3)*g Q2)*g Q1)*g Q0)

double arcsine(x,flg)
double x;
{
        double y, g, r;
        register int i;
        extern int errno;
        static double a[2] = { 0.0, 0.78539816339744830962 };
        static double b[2] = { 1.57079632679489661923, 0.78539816339744830962 };

        y = fabs(x);
        i = flg;
        if (y < 2.3e-10)
                r = y;
        else {
                if (y > 0.5) {
                        i = 1-i;
                        if (y > 1.0) {
                                errno = EDOM;
                                return 0.0;
                        }
                        g = (0.5-y)+0.5;
                        g = ldexp(g,-1);
                        y = sqrt(g);
                        y = -(y+y);
                } else
                        g = y*y;
                r = y + y*
                                ((P(g)*g)
                                /Q(g));
        }
        if (flg) {
                if (x < 0.0)
                        r = (b[i] + r) + b[i];
                else
                        r = (a[i] - r) + a[i];
        } else {
                r = (a[i] + r) + a[i];
                if (x < 0.0)
                        r = -r;
        }
        return r;
}

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a simple function using all ANSI-standard functions to determine the size of a file

#include 

long flength(char *fname)
{
      FILE *fptr;
      long length = -1L;

      fptr = fopen(fname, "rb");
      if(fptr != NULL)
      {
            fseek(fptr, 0L, SEEK_END);
            length = ftell(fptr);
            fclose(fptr);
      }

      return length;
}

#ifdef TEST

main(int argc, char *argv[])
{
      printf("Length of %s = %ld\n", argv[0], flength(argv[0]));
      return 0;
}

#endif /* TEST */

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Allocates a multidimensional array dynamically, at runtime in C

/*

AMALLOC - multi-dimensional malloc()

Allocates a multidimensional array dynamically, at runtime, so that
  1: its elements can be accessed using multiple indirection
  2: it can be deallocated using a call to the standard free() function
Note: On PC's the max array size is 64K

Paul Schlyter, 1992-02-09.  Released to the public domain.

*/


#include 
#include 
#include 


#define MAXDIMS  5              /* Defines the maximum number of dimensions */
#define MAXSIZE  ((size_t) -1L) /* Maximum size of array */


void *amalloc( int esiz, void *initval, int dims, ... )
/*
 *  Input:   esiz     size of each array elements, as given by sizeof
 *           initval  pointer to initial value. NULL ==> zero fill
 *           dims     number of dimensions: 1..MAXDIMS (5)
 *           ...      number of elements in each dimension (int's)
 *
 *  Returns:  NULL    error: out of memory, or illegal parameters
 *                    otherwise base pointer to array
 */
{
      unsigned int dim[MAXDIMS], accdim[MAXDIMS];
      va_list ap;
      int i, j;
      long int totsiz;
      void **q;
      char *p, *r, *s;

      if (dims < 1  ||  dims > MAXDIMS)
            return NULL;

      memset(dim, 0, sizeof(dim));          /* Read dimension numbers */
      memset(accdim, 0, sizeof(accdim));
      va_start(ap, dims);
      dim[0] = accdim[0] = va_arg(ap,int);
      for (i = 1; i < dims; i++)
      {
            dim[i] = va_arg(ap,int);
            accdim[i] = accdim[i-1] * dim[i];
      }
      va_end(ap);

                                            /* Compute total array size */
      totsiz = esiz * accdim[dims-1];       /* Data size */

      for (i = 0; i < dims - 1; i++ )       /* Add space for pointers */
            totsiz += sizeof(void *) * accdim[i];

      if (totsiz > MAXSIZE)                 /* Exit if totsiz too large */
            return NULL;

      p = malloc((size_t) totsiz);          /* Allocate memory */
      if (p == NULL)                        /* Out-of-memory   */
            return NULL;
      memset(p, 0, (unsigned int) totsiz);  /* Zero out allocated memory */
      q = (void **) p;

      if (dims == 1)
            r = (char *) q + esiz * accdim[0];

      for (i = 1; i < dims; i++)            /* Fill in pointers */
      {
            int siz;
            int accd = accdim[i-1], d = dim[i];

            siz =  i == dims-1 ? esiz : sizeof(void *);

            r = (char *) q + sizeof(void *) * accd;
            for (j = 0; j < accd; j++)
            {
                  *q++ = r;
                  r += siz * d;
            }
      }

      if (initval != NULL)
      {
            for (s = (char *) q; s < r; s += esiz)
                  memcpy(s, initval, esiz);
      }

      return p;

}  /* amalloc */


#ifdef TEST   /* Test program */

#include 

main()
{
      static char init_d[8] = { 0x01,0x23,0x45,0x67,0x89,0xAB,0xCD,0xEF };
      int init_i = 0x1111;
      double *a   = amalloc( sizeof(double), init_d, 1, 4 );
      double **b  = amalloc( sizeof(double), init_d, 2, 4, 5 );
      double ***c = amalloc( sizeof(double), init_d, 3, 4, 5, 6 );
      int ***d = amalloc( sizeof(int), &init_i, 3, 4, 5, 6 );
      int i, j, k;

      for (i = 0; i < 4; i++)
            for (j = 0; j < 5; j++ )
                  for (k = 0; k < 6; k++ )
                        d[i][j][k] = (i * 256) + (j * 16) + k;

      a = a, b = b, c = c;

      return 0;
}

#endif

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