Learn C, C++ Programming

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• itoa() function in C language converts int data type to string data type. Syntax for itoa() function is given below.

char *  itoa ( int value, char * str, int base );

• “stdlib.h” header file supports all the type casting functions in C language. But, it is a non standard function.
  

Example program for itoa() function in C:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
    int a=54325;
    char buffer[20];
    itoa(a,buffer,2);   // here 2 means binary
    printf("Binary value = %sn", buffer);

    itoa(a,buffer,10);   // here 10 means decimal
    printf("Decimal value = %sn", buffer);

    itoa(a,buffer,16);   // here 16 means Hexadecimal
    printf("Hexadecimal value = %sn", buffer);
    return 0;
}

……

Other inbuilt typecasting functions in C language:

• Typecasting functions in C language performs data type conversion from one type to another.
• Click on each function name below for description and example programs.

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