#include "utils.h"
#include <ctype.h>
#include <string.h>

/**
 * Returns whether or not a string is a number.
 */
int is_number(char *str)
{
	size_t len = strlen(str);
	for (int c = 0; c < len; c++)
	{
		if (!isdigit(str[c]))
			return 0;
	}
	return 1;
}