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re PR libstdc++/22200 (numeric_limits<signed>::is_modulo is inconsistent with gcc) 

2012-04-29  Marc Glisse  <marc.glisse@inria.fr>

	PR libstdc++/22200
    	* include/std/limits (numeric_limits<>::is_modulo): False for
    	signed types.

From-SVN: r186944
This commit is contained in:
Marc Glisse 2012-04-29 09:25:17 +00:00 committed by Paolo Carlini
parent 94ee697923
commit 1c8300874e
2 changed files with 26 additions and 16 deletions
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11
libstdc++-v3/ChangeLog
View File

@ -1,7 +1,14 @@
2012-04-29 Marc Glisse <marc.glisse@inria.fr>
PR libstdc++/22200
* include/std/limits (numeric_limits<>::is_modulo): False for
signed types.
2012-04-25 Benjamin Kosnik <bkoz@redhat.com> 2012-04-25 Benjamin Kosnik <bkoz@redhat.com>
* include/bits/hashtable.h: Adjust doxygen markup for base classes. * include/bits/hashtable.h: Adjust doxygen markup for base
* include/bits/hashtable_policy.h: Same. classes.
* include/bits/hashtable_policy.h: Same.
2012-04-25 Benjamin Kosnik <bkoz@redhat.com> 2012-04-25 Benjamin Kosnik <bkoz@redhat.com>

31
libstdc++-v3/include/std/limits
View File

@ -270,10 +270,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
false for arbitrary precision types.</em> [18.2.1.2]/54 */ false for arbitrary precision types.</em> [18.2.1.2]/54 */
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = false; static _GLIBCXX_USE_CONSTEXPR bool is_bounded = false;
/** True if the type is @e modulo, that is, if it is possible to add two /** True if the type is @e modulo. A type is modulo if, for any
positive numbers and have a result that wraps around to a third number operation involving +, -, or * on values of that type whose
that is less. Typically false for floating types, true for unsigned result would fall outside the range [min(),max()], the value
integers, and true for signed integers. */ returned differs from the true value by an integer multiple of
max() - min() + 1. On most machines, this is false for floating
types, true for unsigned integers, and true for signed integers.
See PR22200 about signed integers. */
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
/** True if trapping is implemented for this type. */ /** True if trapping is implemented for this type. */
@ -494,7 +497,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; static _GLIBCXX_USE_CONSTEXPR bool is_modulo = !is_signed;
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
@ -564,7 +567,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
@ -705,7 +708,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; static _GLIBCXX_USE_CONSTEXPR bool is_modulo = !is_signed;
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
@ -768,7 +771,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
static constexpr bool is_iec559 = false; static constexpr bool is_iec559 = false;
static constexpr bool is_bounded = true; static constexpr bool is_bounded = true;
static constexpr bool is_modulo = true; static constexpr bool is_modulo = !is_signed;
static constexpr bool traps = __glibcxx_integral_traps; static constexpr bool traps = __glibcxx_integral_traps;
static constexpr bool tinyness_before = false; static constexpr bool tinyness_before = false;
@ -829,7 +832,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
static constexpr bool is_iec559 = false; static constexpr bool is_iec559 = false;
static constexpr bool is_bounded = true; static constexpr bool is_bounded = true;
static constexpr bool is_modulo = true; static constexpr bool is_modulo = !is_signed;
static constexpr bool traps = __glibcxx_integral_traps; static constexpr bool traps = __glibcxx_integral_traps;
static constexpr bool tinyness_before = false; static constexpr bool tinyness_before = false;
@ -896,7 +899,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
@ -1036,7 +1039,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
@ -1175,7 +1178,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
@ -1318,7 +1321,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
@ -1465,7 +1468,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
static _GLIBCXX_USE_CONSTEXPR bool traps static _GLIBCXX_USE_CONSTEXPR bool traps
= __glibcxx_integral_traps; = __glibcxx_integral_traps;