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annotate lib/strnlen1.c @ 40231:9b3c79fdfe0b

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strtod: fix clash with strtold Problem reported for RHEL 5 by Jesse Caldwell (Bug#34817). * lib/strtod.c (compute_minus_zero, minus_zero): Simplify by remving the macro / external variable, and having just a function. User changed. This avoids the need for an external variable that might clash.
author Paul Eggert <eggert@cs.ucla.edu>
date Mon, 11 Mar 2019 16:40:29 -0700
parents b06060465f09
children
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1 /* Find the length of STRING + 1, but scan at most MAXLEN bytes.
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2 Copyright (C) 2005-2006, 2009-2019 Free Software Foundation, Inc.
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3
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4 This program is free software: you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 3 of the License, or
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
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16
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1c4ed7637c24 Include <config.h> unconditionally.
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17 #include <config.h>
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18
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19 /* Specification. */
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20 #include "strnlen1.h"
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21
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22 #include <string.h>
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23
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24 /* Find the length of STRING + 1, but scan at most MAXLEN bytes.
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25 If no '\0' terminator is found in that many characters, return MAXLEN. */
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26 /* This is the same as strnlen (string, maxlen - 1) + 1. */
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27 size_t
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28 strnlen1 (const char *string, size_t maxlen)
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29 {
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30 const char *end = (const char *) memchr (string, '\0', maxlen);
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31 if (end != NULL)
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32 return end - string + 1;
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33 else
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34 return maxlen;
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35 }