az_isdigit.c

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// kernel_lib_printf_functions
/*
 * Kernel Lib Printf Functions
 *
 * Maintainer: Park Jiwoo
 *
 * Copyright (C) 2024 Park-Jiwoo
 *
 */
#include "kernel_pr_he.h"
 
int az_isdigit(int c)
{
    if (c >= 48 && c <= 57)
        return (1);
    return (0);
}