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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
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1 /* Read symbolic links into a buffer without size limitation, relative to fd.
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2
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3 Copyright (C) 2011-2019 Free Software Foundation, Inc.
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <https://www.gnu.org/licenses/>. */
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17
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18 /* Written by Paul Eggert, Bruno Haible, and Jim Meyering. */
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19
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20 #ifndef _GL_CAREADLINKAT_H
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21 #define _GL_CAREADLINKAT_H
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23 #include <fcntl.h>
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24 #include <unistd.h>
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25
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26 struct allocator;
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27
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28 /* Assuming the current directory is FD, get the symbolic link value
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29 of FILENAME as a null-terminated string and put it into a buffer.
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30 If FD is AT_FDCWD, FILENAME is interpreted relative to the current
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31 working directory, as in openat.
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32
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33 If the link is small enough to fit into BUFFER put it there.
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34 BUFFER's size is BUFFER_SIZE, and BUFFER can be null
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35 if BUFFER_SIZE is zero.
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36
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37 If the link is not small, put it into a dynamically allocated
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38 buffer managed by ALLOC. It is the caller's responsibility to free
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39 the returned value if it is nonnull and is not BUFFER.
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40
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41 The PREADLINKAT function specifies how to read links. It operates
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42 like POSIX readlinkat()
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43 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>
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44 but can assume that its first argument is the same as FD.
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46 If successful, return the buffer address; otherwise return NULL and
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47 set errno. */
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48
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49 char *careadlinkat (int fd, char const *filename,
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50 char *buffer, size_t buffer_size,
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51 struct allocator const *alloc,
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52 ssize_t (*preadlinkat) (int, char const *,
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53 char *, size_t));
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54
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55 /* Suitable value for careadlinkat's FD argument. */
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56 #if HAVE_READLINKAT
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57 /* AT_FDCWD is declared in <fcntl.h>. */
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58 #else
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59 /* Define AT_FDCWD independently, so that the careadlinkat module does
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60 not depend on the fcntl-h module. We might as well use the same value
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61 as fcntl-h. */
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62 # ifndef AT_FDCWD
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63 # define AT_FDCWD (-3041965)
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64 # endif
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65 #endif
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66
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67 #endif /* _GL_CAREADLINKAT_H */