ccan/string/string.h

#ifndef CCAN_STRING_H
#define CCAN_STRING_H
#include <string.h>
#include <stdbool.h>

/**
 * streq - Are two strings equal?
 * @a: first string
 * @b: first string
 *
 * This macro is arguably more readable than "!strcmp(a, b)".
 *
 * Example:
 *	if (streq(str, ""))
 *		printf("String is empty!\n");
 */
#define streq(a,b) (strcmp((a),(b)) == 0)

/**
 * strstarts - Does this string start with this prefix?
 * @str: string to test
 * @prefix: prefix to look for at start of str
 *
 * Example:
 *	if (strstarts(str, "foo"))
 *		printf("String %s begins with 'foo'!\n", str);
 */
#define strstarts(str,prefix) (strncmp((str),(prefix),strlen(prefix)) == 0)

/**
 * strends - Does this string end with this postfix?
 * @str: string to test
 * @postfix: postfix to look for at end of str
 *
 * Example:
 *	if (strends(str, "foo"))
 *		printf("String %s end with 'foo'!\n", str);
 */
static inline bool strends(const char *str, const char *postfix)
{
	if (strlen(str) < strlen(postfix))
		return false;

	return streq(str + strlen(str) - strlen(postfix), postfix);
}
#endif /* CCAN_STRING_H */