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Tests of module 'math' in C++ mode.
author Bruno Haible <bruno@clisp.org>
date Mon, 08 Mar 2010 02:37:37 +0100
parents d3ea0f2aacfc
children fc8c984b0733
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12960
1583e59dfb92 Tests of module 'math' in C++ mode.
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1 # math_h.m4 serial 19
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2 dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
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3 dnl This file is free software; the Free Software Foundation
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4 dnl gives unlimited permission to copy and/or distribute it,
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5 dnl with or without modifications, as long as this notice is preserved.
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6
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7 AC_DEFUN([gl_MATH_H],
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8 [
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9 AC_REQUIRE([gl_MATH_H_DEFAULTS])
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10 gl_CHECK_NEXT_HEADERS([math.h])
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11 AC_REQUIRE([AC_C_INLINE])
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12
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13 AC_CACHE_CHECK([whether NAN macro works], [gl_cv_header_math_nan_works],
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14 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <math.h>]],
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15 [[/* Solaris 10 has a broken definition of NAN. Other platforms
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16 fail to provide NAN, or provide it only in C99 mode; this
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17 test only needs to fail when NAN is provided but wrong. */
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18 float f = 1.0f;
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19 #ifdef NAN
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20 f = NAN;
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21 #endif
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22 return f == 0;]])],
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23 [gl_cv_header_math_nan_works=yes],
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24 [gl_cv_header_math_nan_works=no])])
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25 if test $gl_cv_header_math_nan_works = no; then
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26 REPLACE_NAN=1
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27 fi
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28 AC_CACHE_CHECK([whether HUGE_VAL works], [gl_cv_header_math_huge_val_works],
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29 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <math.h>]],
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30 [[/* Solaris 10 has a broken definition of HUGE_VAL. */
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31 double d = HUGE_VAL;
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32 return d == 0;]])],
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33 [gl_cv_header_math_huge_val_works=yes],
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34 [gl_cv_header_math_huge_val_works=no])])
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35 if test $gl_cv_header_math_huge_val_works = no; then
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36 REPLACE_HUGE_VAL=1
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37 fi
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38
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39 dnl Check for declarations of anything we want to poison if the
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40 dnl corresponding gnulib module is not in use.
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41 gl_WARN_ON_USE_PREPARE([[#include <math.h>
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42 ]], [acosl asinl atanl ceilf ceill cosl expl floorf floorl frexpl
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43 ldexpl logb logl round roundf roundl sinl sqrtl tanl trunc truncf truncl])
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44 ])
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45
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46 AC_DEFUN([gl_MATH_MODULE_INDICATOR],
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47 [
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48 dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
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49 AC_REQUIRE([gl_MATH_H_DEFAULTS])
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50 GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
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51 dnl Define it also as a C macro, for the benefit of the unit tests.
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52 gl_MODULE_INDICATOR([$1])
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53 ])
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54
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55 AC_DEFUN([gl_MATH_H_DEFAULTS],
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56 [
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57 GNULIB_ACOSL=0; AC_SUBST([GNULIB_ACOSL])
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58 GNULIB_ASINL=0; AC_SUBST([GNULIB_ASINL])
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59 GNULIB_ATANL=0; AC_SUBST([GNULIB_ATANL])
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60 GNULIB_CEILF=0; AC_SUBST([GNULIB_CEILF])
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61 GNULIB_CEILL=0; AC_SUBST([GNULIB_CEILL])
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62 GNULIB_COSL=0; AC_SUBST([GNULIB_COSL])
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63 GNULIB_EXPL=0; AC_SUBST([GNULIB_EXPL])
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64 GNULIB_FLOORF=0; AC_SUBST([GNULIB_FLOORF])
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65 GNULIB_FLOORL=0; AC_SUBST([GNULIB_FLOORL])
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66 GNULIB_FREXP=0; AC_SUBST([GNULIB_FREXP])
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67 GNULIB_FREXPL=0; AC_SUBST([GNULIB_FREXPL])
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68 GNULIB_ISFINITE=0; AC_SUBST([GNULIB_ISFINITE])
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69 GNULIB_ISINF=0; AC_SUBST([GNULIB_ISINF])
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70 GNULIB_ISNAN=0; AC_SUBST([GNULIB_ISNAN])
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71 GNULIB_ISNANF=0; AC_SUBST([GNULIB_ISNANF])
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72 GNULIB_ISNAND=0; AC_SUBST([GNULIB_ISNAND])
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73 GNULIB_ISNANL=0; AC_SUBST([GNULIB_ISNANL])
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74 GNULIB_LDEXPL=0; AC_SUBST([GNULIB_LDEXPL])
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75 GNULIB_LOGB=0; AC_SUBST([GNULIB_LOGB])
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76 GNULIB_LOGL=0; AC_SUBST([GNULIB_LOGL])
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77 GNULIB_ROUND=0; AC_SUBST([GNULIB_ROUND])
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78 GNULIB_ROUNDF=0; AC_SUBST([GNULIB_ROUNDF])
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79 GNULIB_ROUNDL=0; AC_SUBST([GNULIB_ROUNDL])
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80 GNULIB_SIGNBIT=0; AC_SUBST([GNULIB_SIGNBIT])
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81 GNULIB_SINL=0; AC_SUBST([GNULIB_SINL])
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82 GNULIB_SQRTL=0; AC_SUBST([GNULIB_SQRTL])
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83 GNULIB_TANL=0; AC_SUBST([GNULIB_TANL])
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84 GNULIB_TRUNC=0; AC_SUBST([GNULIB_TRUNC])
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85 GNULIB_TRUNCF=0; AC_SUBST([GNULIB_TRUNCF])
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86 GNULIB_TRUNCL=0; AC_SUBST([GNULIB_TRUNCL])
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87 dnl Assume proper GNU behavior unless another module says otherwise.
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88 HAVE_ACOSL=1; AC_SUBST([HAVE_ACOSL])
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89 HAVE_ASINL=1; AC_SUBST([HAVE_ASINL])
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90 HAVE_ATANL=1; AC_SUBST([HAVE_ATANL])
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91 HAVE_COSL=1; AC_SUBST([HAVE_COSL])
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92 HAVE_EXPL=1; AC_SUBST([HAVE_EXPL])
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93 HAVE_ISNANF=1; AC_SUBST([HAVE_ISNANF])
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94 HAVE_ISNAND=1; AC_SUBST([HAVE_ISNAND])
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95 HAVE_ISNANL=1; AC_SUBST([HAVE_ISNANL])
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96 HAVE_LOGL=1; AC_SUBST([HAVE_LOGL])
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97 HAVE_SINL=1; AC_SUBST([HAVE_SINL])
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98 HAVE_SQRTL=1; AC_SUBST([HAVE_SQRTL])
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99 HAVE_TANL=1; AC_SUBST([HAVE_TANL])
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100 HAVE_DECL_ACOSL=1; AC_SUBST([HAVE_DECL_ACOSL])
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101 HAVE_DECL_ASINL=1; AC_SUBST([HAVE_DECL_ASINL])
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102 HAVE_DECL_ATANL=1; AC_SUBST([HAVE_DECL_ATANL])
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103 HAVE_DECL_COSL=1; AC_SUBST([HAVE_DECL_COSL])
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104 HAVE_DECL_EXPL=1; AC_SUBST([HAVE_DECL_EXPL])
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105 HAVE_DECL_FREXPL=1; AC_SUBST([HAVE_DECL_FREXPL])
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106 HAVE_DECL_LDEXPL=1; AC_SUBST([HAVE_DECL_LDEXPL])
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107 HAVE_DECL_LOGB=1; AC_SUBST([HAVE_DECL_LOGB])
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108 HAVE_DECL_LOGL=1; AC_SUBST([HAVE_DECL_LOGL])
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109 HAVE_DECL_SINL=1; AC_SUBST([HAVE_DECL_SINL])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
110 HAVE_DECL_SQRTL=1; AC_SUBST([HAVE_DECL_SQRTL])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
111 HAVE_DECL_TANL=1; AC_SUBST([HAVE_DECL_TANL])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
112 HAVE_DECL_TRUNC=1; AC_SUBST([HAVE_DECL_TRUNC])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
113 HAVE_DECL_TRUNCF=1; AC_SUBST([HAVE_DECL_TRUNCF])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
114 REPLACE_CEILF=0; AC_SUBST([REPLACE_CEILF])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
115 REPLACE_CEILL=0; AC_SUBST([REPLACE_CEILL])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
116 REPLACE_FLOORF=0; AC_SUBST([REPLACE_FLOORF])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
117 REPLACE_FLOORL=0; AC_SUBST([REPLACE_FLOORL])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
118 REPLACE_FREXP=0; AC_SUBST([REPLACE_FREXP])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
119 REPLACE_FREXPL=0; AC_SUBST([REPLACE_FREXPL])
9898
02bfc9acab82 Work around Solaris 10 math.h bug.
Eric Blake <ebb9@byu.net>
parents: 9645
diff changeset
120 REPLACE_HUGE_VAL=0; AC_SUBST([REPLACE_HUGE_VAL])
9645
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
121 REPLACE_ISFINITE=0; AC_SUBST([REPLACE_ISFINITE])
10287
7a5cfea8469f Add isinf module.
Ben Pfaff <blp@cs.stanford.edu>
parents: 10267
diff changeset
122 REPLACE_ISINF=0; AC_SUBST([REPLACE_ISINF])
10267
bf763f10f63c Add isnan module.
Ben Pfaff <blp@cs.stanford.edu>
parents: 9921
diff changeset
123 REPLACE_ISNAN=0; AC_SUBST([REPLACE_ISNAN])
9645
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
124 REPLACE_LDEXPL=0; AC_SUBST([REPLACE_LDEXPL])
9898
02bfc9acab82 Work around Solaris 10 math.h bug.
Eric Blake <ebb9@byu.net>
parents: 9645
diff changeset
125 REPLACE_NAN=0; AC_SUBST([REPLACE_NAN])
9645
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
126 REPLACE_ROUND=0; AC_SUBST([REPLACE_ROUND])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
127 REPLACE_ROUNDF=0; AC_SUBST([REPLACE_ROUNDF])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
128 REPLACE_ROUNDL=0; AC_SUBST([REPLACE_ROUNDL])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
129 REPLACE_SIGNBIT=0; AC_SUBST([REPLACE_SIGNBIT])
c8174371956e Exploit the __builtin_signbit GCC built-in.
Bruno Haible <bruno@clisp.org>
parents: 9465
diff changeset
130 REPLACE_SIGNBIT_USING_GCC=0; AC_SUBST([REPLACE_SIGNBIT_USING_GCC])
9913
d3f5a70dc1ba Make truncl work on OSF/1 4.0.
Bruno Haible <bruno@clisp.org>
parents: 9900
diff changeset
131 REPLACE_TRUNCL=0; AC_SUBST([REPLACE_TRUNCL])
8186
c115624bf99a New module 'math'. <math.h> replaces mathl.h.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
132 ])