Check if a string exists in an array.

in_array.c

#include <string.h>

/**
 * Check if a string exists in an array.
 */
int in_array (const char* const str, const char *arr[], size_t size) {
	int i;
	
	for (i = 0; i < size; i += 1) {
		if (!strcmp(arr[i], str)) {
			return 1;
		}
	}
	
	return 0;
}