nulstr-util: Declare NULSTR_FOREACH() iterator inline

[thirdparty/systemd.git] / src / basic / nulstr-util.h

/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once

#include <stdbool.h>
#include <string.h>

#define NULSTR_FOREACH(i, l)                                    \
        for (typeof(*(l)) *(i) = (l); (i) && *(i); (i) = strchr((i), 0)+1)

#define NULSTR_FOREACH_PAIR(i, j, l)                             \
        for (typeof(*(l)) *(i) = (l), *(j) = strchr((i), 0)+1; (i) && *(i); (i) = strchr((j), 0)+1, (j) = *(i) ? strchr((i), 0)+1 : (i))

const char* nulstr_get(const char *nulstr, const char *needle);

static inline bool nulstr_contains(const char *nulstr, const char *needle) {
        return nulstr_get(nulstr, needle);
}