1 /* Test file for multiple mpfr.h inclusion and va_list related functions 2 3 Copyright 2011-2018 Free Software Foundation, Inc. 4 Contributed by the AriC and Caramba projects, INRIA. 5 6 This file is part of the GNU MPFR Library. 7 8 The GNU MPFR Library is free software; you can redistribute it and/or modify 9 it under the terms of the GNU Lesser General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or (at your 11 option) any later version. 12 13 The GNU MPFR Library is distributed in the hope that it will be useful, but 14 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 16 License for more details. 17 18 You should have received a copy of the GNU Lesser General Public License 19 along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see 20 http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., 21 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ 22 23 #if HAVE_STDARG 24 25 #if _MPFR_EXP_FORMAT == 4 26 /* If mpfr_exp_t is defined as intmax_t, intmax_t must be defined before 27 the inclusion of mpfr.h (this test doesn't use mpfr-impl.h). */ 28 # include <stdint.h> 29 #endif 30 31 #define MPFR_DONT_USE_FILE /* don't use FILE in mpfr-impl.h */ 32 #ifdef MPFR_USE_MINI_GMP 33 #include "mpfr-test.h" 34 #endif 35 36 /* One of the goals of this test is to detect potential issues with the 37 * following case in user code: 38 * 39 * #include <some_lib.h> 40 * #include <stdarg.h> 41 * #define MPFR_USE_VA_LIST 42 * #include <mpfr.h> 43 * 44 * where some_lib.h has "#include <mpfr.h>". So, the mpfr.h header file 45 * is included multiple times, a first time without <stdarg.h> before, 46 * and a second time with <stdarg.h> support. We need to make sure that 47 * the second inclusion is not a no-op due to some #include guard. This 48 * was fixed in r7320. 49 * 50 * With mini-gmp, mpfr-impl.h is included first, but this should not 51 * affect this test thanks to MPFR_DONT_USE_FILE. 52 */ 53 #include <mpfr.h> 54 55 #include <stdarg.h> 56 #define MPFR_USE_VA_LIST /* necessary due to GMP bug concerning inclusions */ 57 #include <mpfr.h> 58 59 #include <stdio.h> 60 #define MPFR_USE_FILE /* necessary due to GMP bug concerning inclusions */ 61 #include <mpfr.h> 62 63 #include "mpfr-test.h" 64 65 static void 66 test (FILE *fout, const char *fmt, ...) 67 { 68 int (*fct) (FILE*, const char*, va_list); 69 70 fct = mpfr_vfprintf; 71 if (0) 72 { 73 va_list ap; 74 va_start (ap, fmt); 75 fct (fout, fmt, ap); 76 va_end (ap); 77 } 78 } 79 80 int 81 main (void) 82 { 83 tests_start_mpfr (); 84 test (stdout, "%d\n", 0); 85 tests_end_mpfr (); 86 return 0; 87 } 88 89 #else /* HAVE_STDARG */ 90 91 /* The test is disabled. */ 92 93 int 94 main (void) 95 { 96 return 77; 97 } 98 99 #endif /* HAVE_STDARG */ 100