os-workshop

same materials and sample source for RV32 OS projects
git clone http://frotz.net/git/os-workshop.git
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strnlen.c (506B)

      1 /*
      2 ** Copyright 2001, Travis Geiselbrecht. All rights reserved.
      3 ** Distributed under the terms of the NewOS License.
      4 */
      5 /*
      6  * Copyright (c) 2008 Travis Geiselbrecht
      7  *
      8  * Use of this source code is governed by a MIT-style
      9  * license that can be found in the LICENSE file or at
     10  * https://opensource.org/licenses/MIT
     11  */
     12 #include <string.h>
     13 #include <stdint.h>
     14 
     15 size_t
     16 strnlen(char const *s, size_t count) {
     17     const char *sc;
     18 
     19     for (sc = s; count-- && *sc != '\0'; ++sc)
     20         ;
     21     return sc - s;
     22 }