Question

How to convert hexdecimal string to long int in C

Answer 1

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

int main(int argc, char **argv) 
{
	long int n;
	char s[] = "FF";
		
	n = strtol(s, NULL, 16);
	printf ("hexadecimal number %lX = %ld\n",n, n);
	
    return 0;
}
   
 
/*
run:
 
hexadecimal number FF = 255

*/

 

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