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# 8  
Old 12-21-2007
Originally Posted by naan

Can you help me in converting int value to hex in a single command.

#include <stdio.h>
#include <ctype.h>
#include <errno.h>

int main(int argc, char *argv[])
    int c, hx;

    hx = 0;
    while ((c = getchar()) != EOF && c != '\n') {
        if (isdigit(c))
            hx = c - '0' + hx * 10;
        else {
            return 1;
    printf("%x\n", hx);
    return 0;

# 9  
Old 12-21-2007
#include <stdio.h>

int main(int argc, char *argv[])
    int c, hx;
    if (argc > 1)
    printf("%x\n", hx);
    return 0;

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