/*
 * Copyright (c) 2016-2020 Intel, Inc.  All rights reserved.
 * Copyright (c) 2021      Nanook Consulting.  All rights reserved.
 * $COPYRIGHT$
 *
 * Additional copyrights may follow
 *
 * $HEADER$
 */

/** @file
 *
 * Buffer strnlen function for portability to archaic platforms.
 */

#ifndef PMIX_STRNLEN_H
#define PMIX_STRNLEN_H

#include "src/include/pmix_config.h"

#if defined(HAVE_STRNLEN)
#    define PMIX_STRNLEN(c, a, b) (c) = strnlen(a, b)
#else
#    define PMIX_STRNLEN(c, a, b)          \
        do {                               \
            size_t _x;                     \
            (c) = 0;                       \
            for (_x = 0; _x < (b); _x++) { \
                if ('\0' == (a)[_x]) {     \
                    break;                 \
                }                          \
                ++(c);                     \
            }                              \
        } while (0)
#endif

#endif /* PMIX_STRNLEN_H */