isnum_from_str.c File Reference

#include "libft.h"

Include dependency graph for isnum_from_str.c:

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Functions
int	isnum_from_str (const char *str)

Function Documentation

isnum_from_str()

int isnum_from_str

(

const char *

str

)

Definition at line 15 of file isnum_from_str.c.

{
    if (!str || *str == '\0')
        return (0);
    if (*str == '-' || *str == '+')
    {
        str++;
        if (*str == '\0')
            return (0);
    }
    while (*str)
    {
        if (*str < '0' || *str > '9')
            return (0);
        str++;
    }
    return (1);
}