From dbb778cb5e6f585c760e0327c1b63aecb5568d84 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Tue, 17 Nov 2015 23:44:53 +0100 Subject: split out string/strn/ from string/str/ MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- src/string/str/strcnmove.c | 54 ---------------------------------------------- 1 file changed, 54 deletions(-) delete mode 100644 src/string/str/strcnmove.c (limited to 'src/string/str/strcnmove.c') diff --git a/src/string/str/strcnmove.c b/src/string/str/strcnmove.c deleted file mode 100644 index f418e92..0000000 --- a/src/string/str/strcnmove.c +++ /dev/null @@ -1,54 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ -#include - - - -/** - * Copy a memory segment to another, possibly overlapping, segment, - * stop when a NUL byte or a specified byte is encountered. - * - * This is a slibc extension added for completeness. - * It is only available if GNU extensions are available. - * - * @param whither The destination memory segment. - * @param whence The source memory segment. - * @param c The stop byte. - * @param maxlen The maximum number of bytes to copy. - * NOTE that if the resulting string at least this - * long, no NUL byte will be written to `whither'. - * On the otherhand, if the resultnig string is - * shorter, `whither` will be filled with NUL bytes - * until this amount of bytes have been written. - * @return `NULL` if `c` was not encountered, otherwise - * the position of `c` translated to `whither`, - * that is, the address of `whither` plus the - * number of copied characters; the address of - * one character passed the last written non-NUL - * character. - */ -char* strcnmove(char* whither, const char* whence, int c, size_t maxlen) -{ - const char* stop = memchr(whence, c, maxlen); - size_t n = stop == NULL ? strnlen(whence, maxlen) : (size_t)(stop - whence); - char* r = stop == NULL ? NULL : (whither + n); - memmove(whither, whence, n); - memset(whither, 0, maxlen - n); - return r; -} - -- cgit v1.2.3-70-g09d2