Mercurial > gnulib
view tests/test-ieee754-h.c @ 40193:5fd32d128129
relocatable-prog: Use wrapper-free installation also on Mac OS X.
Reported by Paul Smith <psmith@gnu.org>.
* build-aux/install-reloc: Accept a 'mode' argument as first argument.
(func_relativize): New function, from gnulib-tool.
Handle mode 'macosx' through invocations of 'otool' and
'install_name_tool'.
* m4/relocatable.m4 (gl_RELOCATABLE_BODY): Determine use_macos_tools.
If use_macos_tools is true, set INSTALL_PROGRAM_ENV to an
'install-reloc' invocation with mode 'macosx'.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 23 Feb 2019 22:42:54 +0100 |
parents | b06060465f09 |
children |
line wrap: on
line source
/* Test <ieee754.h>. Copyright 2018-2019 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 of the License, 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/>. */ /* Written by Paul Eggert. */ #include <config.h> #include <ieee754.h> #include <stdio.h> static struct { float x; unsigned sign; unsigned exponent; unsigned frac; } const float_tests[] = { {0, 0, 0, 0}, {-0.0, 1, 0, 0}, {0.1, 0, 0x7b, 0x4ccccd} }; static struct { double x; unsigned sign; unsigned exponent; unsigned frac_hi; unsigned frac_lo; } const double_tests[] = { {0, 0, 0, 0}, {-0.0, 1, 0, 0 }, {0.1, 0, 0x3fb, 0x99999, 0x9999999a} }; int main (void) { int i; for (i = 0; i < sizeof float_tests / sizeof *float_tests; i++) { union ieee754_float u; u.f = float_tests[i].x; if (float_tests[i].sign != u.ieee.negative) return 1; if (float_tests[i].exponent != u.ieee.exponent) return 2; if (float_tests[i].frac != u.ieee.mantissa) return 3; } for (i = 0; i < sizeof double_tests / sizeof *double_tests; i++) { union ieee754_double u; u.d = double_tests[i].x; if (double_tests[i].sign != u.ieee.negative) return 4; if (double_tests[i].exponent != u.ieee.exponent) return 5; if (double_tests[i].frac_hi != u.ieee.mantissa0) return 6; if (double_tests[i].frac_lo != u.ieee.mantissa1) return 7; } return 0; }