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numeric_limits.cc: Add more tests. 

* testsuite/18_support/numeric_limits.cc: Add more tests.
      * include/bits/std_limits.h (numeric_limits<char>::max): Fix
      typo.

From-SVN: r44911
This commit is contained in:
Gabriel Dos Reis 2001-08-14 23:34:04 +00:00 committed by Gabriel Dos Reis
parent abb788ba5b
commit 1489e3241e
3 changed files with 86 additions and 2 deletions
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6
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,9 @@
2001-08-15 Gabriel Dos Reis <gdr@merlin.codesourcery.com>
* testsuite/18_support/numeric_limits.cc: Add more tests.
* include/bits/std_limits.h (numeric_limits<char>::max): Fix
typo.
2001-08-14 Ulrich Weigand <uweigand@de.ibm.com>
* configure.target (cpu_include_dir): Set to `config/cpu/s390'

2
libstdc++-v3/include/bits/std_limits.h
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@ -1123,7 +1123,7 @@ namespace std
static signed char min() throw()
{ return __glibcpp_signed_char_min; }
static signed char max() throw()
{ return __glibcpp_signed_char_min; }
{ return __glibcpp_signed_char_max; }
static const int digits = __glibcpp_signed_char_digits;
static const int digits10 = __glibcpp_signed_char_digits10;

80
libstdc++-v3/testsuite/18_support/numeric_limits.cc
View File

@ -21,8 +21,66 @@
// 18.2.1.1 template class numeric_limits
#include <limits>
#include <limits.h>
#include <float.h>
#include <testsuite_hooks.h>
template<typename T>
struct extrema {
static T min;
static T max;
};
#define DEFINE_EXTREMA(T, m, M) \
template<> T extrema<T>::min = m; \
template<> T extrema<T>::max = M
DEFINE_EXTREMA(char, CHAR_MIN, CHAR_MAX);
DEFINE_EXTREMA(signed char, SCHAR_MIN, SCHAR_MAX);
DEFINE_EXTREMA(unsigned char, 0, UCHAR_MAX);
DEFINE_EXTREMA(short, SHRT_MIN, SHRT_MAX);
DEFINE_EXTREMA(unsigned short, 0, USHRT_MAX);
DEFINE_EXTREMA(int, INT_MIN, INT_MAX);
DEFINE_EXTREMA(unsigned, 0U, UINT_MAX);
DEFINE_EXTREMA(long, LONG_MIN, LONG_MAX);
DEFINE_EXTREMA(unsigned long, 0UL, ULONG_MAX);
DEFINE_EXTREMA(float, FLT_MIN, FLT_MAX);
DEFINE_EXTREMA(double, DBL_MIN, DBL_MAX);
DEFINE_EXTREMA(long double, LDBL_MIN, LDBL_MAX);
#undef DEFINE_EXTREMA
template<typename T>
void test_extrema()
{
VERIFY( extrema<T>::min == std::numeric_limits<T>::min() );
VERIFY( extrema<T>::max == std::numeric_limits<T>::max() );
}
#ifdef __CHAR_UNSIGNED__
#define char_is_signed false
#else
#define char_is_signed true
#endif
void test_sign()
{
VERIFY( std::numeric_limits<char>::is_signed == char_is_signed );
VERIFY( std::numeric_limits<signed char>::is_signed == true );
VERIFY( std::numeric_limits<unsigned char>::is_signed == false );
VERIFY( std::numeric_limits<short>::is_signed == true );
VERIFY( std::numeric_limits<unsigned short>::is_signed == false );
VERIFY( std::numeric_limits<int>::is_signed == true );
VERIFY( std::numeric_limits<unsigned>::is_signed == false );
VERIFY( std::numeric_limits<long>::is_signed == true );
VERIFY( std::numeric_limits<unsigned long>::is_signed == false );
VERIFY( std::numeric_limits<float>::is_signed == true );
VERIFY( std::numeric_limits<double>::is_signed == true );
VERIFY( std::numeric_limits<long double>::is_signed == true );
}
template<typename T>
struct A
@ -96,5 +154,25 @@ int main()
{
test01();
test02();
return 0;
test_extrema<char>();
test_extrema<signed char>();
test_extrema<unsigned char>();
test_extrema<short>();
test_extrema<unsigned short>();
test_extrema<int>();
test_extrema<unsigned>();
test_extrema<long>();
test_extrema<unsigned long>();
test_extrema<float>();
test_extrema<double>();
test_extrema<long double>();
test_sign();
return 0;
}