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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/18_support/numeric_limits/digits10.cc
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1 // { dg-add-options ieee }
5 // Copyright (C) 1999-2016 Free Software Foundation, Inc.
7 // This file is part of the GNU ISO C++ Library. This library is free
8 // software; you can redistribute it and/or modify it under the
9 // terms of the GNU General Public License as published by the
10 // Free Software Foundation; either version 3, or (at your option)
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License along
19 // with this library; see the file COPYING3. If not see
20 // <http://www.gnu.org/licenses/>.
22 // 18.2.1.1 template class numeric_limits
28 #include <testsuite_hooks.h>
33 bool test
__attribute__((unused
)) = true;
35 VERIFY( std::numeric_limits
<bool>::digits10
== 0 );
36 if (__CHAR_BIT__
== 8)
38 VERIFY( std::numeric_limits
<signed char>::digits10
== 2 );
39 VERIFY( std::numeric_limits
<unsigned char>::digits10
== 2 );
41 if (__CHAR_BIT__
* sizeof(short) == 16)
43 VERIFY( std::numeric_limits
<signed short>::digits10
== 4 );
44 VERIFY( std::numeric_limits
<unsigned short>::digits10
== 4 );
46 if (__CHAR_BIT__
* sizeof(int) == 32)
48 VERIFY( std::numeric_limits
<signed int>::digits10
== 9 );
49 VERIFY( std::numeric_limits
<unsigned int>::digits10
== 9 );
51 if (__CHAR_BIT__
* sizeof(long long) == 64)
53 VERIFY( std::numeric_limits
<signed long long>::digits10
== 18 );
54 VERIFY( std::numeric_limits
<unsigned long long>::digits10
== 19 );