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Implement P2614R2 Deprecating float_denorm_style, numeric_limits::has_denorm, numeric_limits::has_denorm_loss #3482

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Merged
Stephan T. Lavavej (StephanTLavavej) merged 20 commits into from
Apr 20, 2023
Merged

Implement P2614R2 Deprecating float_denorm_style, numeric_limits::has_denorm, numeric_limits::has_denorm_loss #3482

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04bddd8
Implement P2614R2 and LWG-3869
frederick-vs-ja Feb 20, 2023
f969f3d
`_SILENCE_CXX23_UNIX_STREAM_DEPRECATION_WARNING`
frederick-vs-ja Feb 20, 2023
b777537
`_SILENCE_CXX23_DENOM_DEPRECATION_WARNING`
frederick-vs-ja Feb 20, 2023
600fb26
`_SILENCE_CXX23_DENOM_DEPRECATION_WARNING` again
frederick-vs-ja Feb 20, 2023
343c75a
Tweak comments in `yvals_core.h`
frederick-vs-ja Feb 20, 2023
0a2b7d3
Missing change for `numeric_limits<wchar_t>::min`
frederick-vs-ja Feb 20, 2023
5b2e6ce
`_SILENCE_CXX23_UNIX_STREAM_DEPRECATION_WARNING` again
frederick-vs-ja Feb 20, 2023
07129a5
Less aggressive deprecation
frederick-vs-ja Feb 20, 2023
e522fbf
Less aggressive deprecation again
frederick-vs-ja Feb 20, 2023
f19693e
Another try
frederick-vs-ja Feb 20, 2023
8a54508
Try using unwarned global variables
frederick-vs-ja Feb 20, 2023
661408e
Separate PR
frederick-vs-ja Feb 20, 2023
36b197e
Missed restoration
frederick-vs-ja Feb 20, 2023
3054461
Merge branch 'main' into deprecate-23
frederick-vs-ja Apr 5, 2023
3dd765a
Fix typos and mistakes in merging
frederick-vs-ja Apr 5, 2023
bbd08cf
Try removing workaround
frederick-vs-ja Apr 5, 2023
c96a0dd
Fix typo in test files
frederick-vs-ja Apr 5, 2023
bee91dc
Remove superfluous U+0060 Grave Accent
frederick-vs-ja Apr 5, 2023
c4d9497
Separate inclusion reduction to another PR
frederick-vs-ja Apr 6, 2023
c7b61b0
Merge branch 'microsoft:main' into deprecate-23
frederick-vs-ja Apr 14, 2023
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15 changes: 11 additions & 4 deletions stl/inc/limits
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Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,8 @@ _STL_DISABLE_CLANG_WARNINGS
#undef new

_STD_BEGIN
_EXPORT_STD enum float_denorm_style { // constants for different IEEE float denormalization styles
// constants for different IEEE float denormalization styles
_EXPORT_STD enum _CXX23_DEPRECATE_DENORM float_denorm_style {
denorm_indeterminate = -1,
denorm_absent = 0,
denorm_present = 1
Expand All @@ -51,8 +52,11 @@ _EXPORT_STD enum float_round_style { // constants for different IEEE rounding st
};

struct _Num_base { // base for all types, with common defaults
static constexpr float_denorm_style has_denorm = denorm_absent;
static constexpr bool has_denorm_loss = false;
_STL_DISABLE_DEPRECATED_WARNING
_CXX23_DEPRECATE_DENORM static constexpr float_denorm_style has_denorm = denorm_absent;
_CXX23_DEPRECATE_DENORM static constexpr bool has_denorm_loss = false;
_STL_RESTORE_DEPRECATED_WARNING

static constexpr bool has_infinity = false;
static constexpr bool has_quiet_NaN = false;
static constexpr bool has_signaling_NaN = false;
Expand Down Expand Up @@ -134,7 +138,10 @@ struct _Num_int_base : _Num_base { // base for integer types
};

struct _Num_float_base : _Num_base { // base for floating-point types
static constexpr float_denorm_style has_denorm = denorm_present;
_STL_DISABLE_DEPRECATED_WARNING
_CXX23_DEPRECATE_DENORM static constexpr float_denorm_style has_denorm = denorm_present;
_STL_RESTORE_DEPRECATED_WARNING
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static constexpr bool has_infinity = true;
static constexpr bool has_quiet_NaN = true;
static constexpr bool has_signaling_NaN = true;
Expand Down
14 changes: 13 additions & 1 deletion stl/inc/yvals_core.h
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Expand Up @@ -365,6 +365,7 @@

// _HAS_CXX23 and _SILENCE_ALL_CXX23_DEPRECATION_WARNINGS control:
// P1413R3 Deprecate aligned_storage And aligned_union
// P2614R2 Deprecating float_denorm_style, numeric_limits::has_denorm, numeric_limits::has_denorm_loss
// Other C++23 deprecation warnings

// Parallel Algorithms Notes
Expand Down Expand Up @@ -1431,7 +1432,18 @@ _EMIT_STL_ERROR(STL1004, "C++98 unexpected() is incompatible with C++23 unexpect
#define _CXX23_DEPRECATE_UNIX_STREAMS
#endif // ^^^ warning disabled ^^^

// next warning number: STL4042
#if _HAS_CXX23 && !defined(_SILENCE_CXX23_DENORM_DEPRECATION_WARNING) \
&& !defined(_SILENCE_ALL_CXX23_DEPRECATION_WARNINGS)
#define _CXX23_DEPRECATE_DENORM \
[[deprecated("warning STL4042: " \
"std::float_denorm_style, std::numeric_limits::has_denorm, and std::numeric_limits::has_denorm_loss " \
"are deprecated in C++23. You can define _SILENCE_CXX23_DENORM_DEPRECATION_WARNING or " \
"_SILENCE_ALL_CXX23_DEPRECATION_WARNINGS to suppress this warning.")]]
#else // ^^^ warning enabled / warning disabled vvv
#define _CXX23_DEPRECATE_DENORM
#endif // ^^^ warning disabled ^^^

// next warning number: STL4043

// next error number: STL1006

Expand Down
1 change: 1 addition & 0 deletions tests/std/tests/Dev11_1074023_constexpr/test.cpp
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Expand Up @@ -6,6 +6,7 @@
#define _SILENCE_CXX17_IS_LITERAL_TYPE_DEPRECATION_WARNING
#define _SILENCE_CXX17_NEGATORS_DEPRECATION_WARNING
#define _SILENCE_CXX20_IS_POD_DEPRECATION_WARNING
#define _SILENCE_CXX23_DENORM_DEPRECATION_WARNING

#include <algorithm>
#include <array>
Expand Down
2 changes: 2 additions & 0 deletions tests/tr1/tests/limits/test.cpp
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Expand Up @@ -4,6 +4,8 @@
// test <limits>
#define TEST_NAME "<limits>"

#define _SILENCE_CXX23_DENORM_DEPRECATION_WARNING

#include "tdefs.h"
#include <float.h>
#include <limits.h>
Expand Down