diff options
Diffstat (limited to 'math')
| -rw-r--r-- | math/Makefile | 5 | ||||
| -rw-r--r-- | math/test-misc.c | 57 |
2 files changed, 60 insertions, 2 deletions
diff --git a/math/Makefile b/math/Makefile index f9f0ce4790..0480ea99b0 100644 --- a/math/Makefile +++ b/math/Makefile @@ -1,4 +1,4 @@ -# Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc. +# Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. # This file is part of the GNU C Library. # The GNU C Library is free software; you can redistribute it and/or @@ -78,7 +78,8 @@ distribute += $(long-c-yes:=.c) include ../Makeconfig # Rules for the test suite. -tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test +tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \ + test-misc # We do the `long double' tests only if this data type is available and # distinct from `double'. test-longdouble-yes = test-ldouble test-ildoubl diff --git a/math/test-misc.c b/math/test-misc.c new file mode 100644 index 0000000000..962e5f69de --- /dev/null +++ b/math/test-misc.c @@ -0,0 +1,57 @@ +/* Miscellaneous tests which don't fit anywhere else. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <math.h> +#include <stdio.h> + + +int +main (void) +{ + int result = 0; + + if (sizeof (long double) >= 12) + { + long double x = 0x100000001ll + (long double) 0.5; + long double q; + long double r; + + r = modfl (x, &q); + if (q != (long double) 0x100000001ll || r != 0.5) + { + printf ("modfl (%Lg, ...) failed\n", x); + result = 1; + } + } + + { + double x = 0x100000001ll + (double) 0.5; + double q; + double r; + + r = modf (x, &q); + if (q != (double) 0x100000001ll || r != 0.5) + { + printf ("modf (%g, ...) failed\n", x); + result = 1; + } + } + + return result; +} |