cd7a7a56fc
This PR implements a part of WG14 N2653:
- Define C23 char8_t
- Define C11 char16_t
- Define C11 char32_t
Missing goals are:
- The type of UTF-8 character literals is changed from unsigned char to
char8_t. (Since UTF-8 character literals already have type unsigned
char, this is not a semantic change).
- New mbrtoc8() and c8rtomb() functions declared in <uchar.h> enable
conversions between multibyte characters and UTF-8.
- A new ATOMIC_CHAR8_T_LOCK_FREE macro.
- A new atomic_char8_t typedef name.
162 lines
2.1 KiB
ReStructuredText
162 lines
2.1 KiB
ReStructuredText
.. _c23_support:
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===========
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C23 Support
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===========
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.. include:: check.rst
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.. contents:: Table of Contents
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:depth: 4
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:local:
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---------------------
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Implementation Status
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---------------------
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(It's helpful to review 'Annex B (Informative) Library Summary' for these.)
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Additions:
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* fenv.h
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* fesetexcept |check|
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* fetestexceptflag |check|
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* fegetmode
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* fesetmode
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* math.h
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* acospi*
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* asinpi*
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* atanpi*
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* atan2pi*
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* cospi*
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* sinpi*
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* tanpi*
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* exp10*
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* exp10m1*
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* exp2m1*
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* log10p1*
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* logp1
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* log2p1*
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* rsqrt*
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* __STDC_IEC_60559_DFP__ functions (_Decimal32, _Decimal64, _Decimal128)
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* compoundn*
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* totalorder*
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* totalordermag*
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* getpayload*
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* setpayload*
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* iscannonical
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* issignaling
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* issubnormal
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* iszero
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* llogb*
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* pown*
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* powr*
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* rootn*
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* roundeven* |check|
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* fromfp*
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* ufromfp*
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* fromfpx*
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* nextup*
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* nextdown*
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* canonicalize*
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* fmaximum*
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* fminimum*
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* fmaximum_mag*
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* fminimum_mag*
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* fmaximum_mag_num*
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* fminimum_mag_num*
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* fadd*
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* fsub*
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* fmul*
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* fdiv*
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* ffma*
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* dfmal
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* fsqrt*
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* dsqrtl
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* stdbit.h (New header) |check|
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* stdckdint.h (New header) |check|
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* stddef.h
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* unreachable
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* stdlib.h
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* strfromd
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* strfromf
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* strfroml
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* free_sized
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* free_aligned_sized
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* memalignment
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* string.h
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* memset_explicit |check|
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* memccpy
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* strdup
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* strndup
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* tgmath.h
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* acospi
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* asinpi
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* atan2pi
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* atanpi
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* compoundn
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* cospi
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* erf
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* exp10m1
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* exp10
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* exp2m1
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* fmaximum
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* fmaximum_mag
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* fmaximum_num
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* fmaximum_mag_num
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* fminimum
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* fminimum_mag
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* fminimum_num
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* fminimum_mag_num
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* fromfpx
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* fromfp
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* llogb
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* log10p1
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* log2p1
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* logp1
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* nextdown
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* nextup
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* pown
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* powr
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* rootn
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* roundeven
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* rsqrt
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* scalbn
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* sinpi
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* tanpi
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* ufromfpx
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* ufromfp
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* fadd
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* dadd
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* fsub
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* dsub
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* fmul
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* dmul
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* fdiv
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* ddiv
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* ffma
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* dfma
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* fsqrt
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* dsqrt
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* time.h
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* gmtime_r
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* localtime_r
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* timegm
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* timespec_getres
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* strftime conversion specifiers
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* 0b
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* 0B
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* uchar.h
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* mbrtoc8
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* c8rtomb
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* char*_t |check|
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