Mercurial > gnulib
view tests/test-fgetc.c @ 40231:9b3c79fdfe0b
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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/* Test of fgetc() function. Copyright (C) 2011-2019 Free Software Foundation, Inc. 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, 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 <https://www.gnu.org/licenses/>. */ #include <config.h> #include <stdio.h> #include "signature.h" SIGNATURE_CHECK (fgetc, int, (FILE *)); #include <errno.h> #include <fcntl.h> #include <unistd.h> #if HAVE_MSVC_INVALID_PARAMETER_HANDLER # include "msvc-inval.h" #endif #include "macros.h" int main (int argc, char **argv) { const char *filename = "test-fgetc.txt"; /* We don't have an fgetc() function that installs an invalid parameter handler so far. So install that handler here, explicitly. */ #if HAVE_MSVC_INVALID_PARAMETER_HANDLER \ && MSVC_INVALID_PARAMETER_HANDLING == DEFAULT_HANDLING gl_msvc_inval_ensure_handler (); #endif /* Prepare a file. */ { const char text[] = "hello world"; int fd = open (filename, O_RDWR | O_CREAT | O_TRUNC, 0600); ASSERT (fd >= 0); ASSERT (write (fd, text, sizeof (text)) == sizeof (text)); ASSERT (close (fd) == 0); } /* Test that fgetc() sets errno if someone else closes the stream fd behind the back of stdio. */ { FILE *fp = fopen (filename, "r"); ASSERT (fp != NULL); ASSERT (close (fileno (fp)) == 0); errno = 0; ASSERT (fgetc (fp) == EOF); ASSERT (errno == EBADF); ASSERT (ferror (fp)); fclose (fp); } /* Test that fgetc() sets errno if the stream was constructed with an invalid file descriptor. */ { FILE *fp = fdopen (-1, "r"); if (fp != NULL) { errno = 0; ASSERT (fgetc (fp) == EOF); ASSERT (errno == EBADF); ASSERT (ferror (fp)); fclose (fp); } } { FILE *fp; close (99); fp = fdopen (99, "r"); if (fp != NULL) { errno = 0; ASSERT (fgetc (fp) == EOF); ASSERT (errno == EBADF); ASSERT (ferror (fp)); fclose (fp); } } /* Clean up. */ unlink (filename); return 0; }