mirror of
https://github.com/jart/cosmopolitan.git
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fa20edc44d
- Remove most __ASSEMBLER__ __LINKER__ ifdefs - Rename libc/intrin/bits.h to libc/serialize.h - Block pthread cancelation in fchmodat() polyfill - Remove `clang-format off` statements in third_party
64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
#ifndef COSMOPOLITAN_LIBC_TINYMATH_LDSHAPE_INTERNAL_H_
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#define COSMOPOLITAN_LIBC_TINYMATH_LDSHAPE_INTERNAL_H_
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#include "libc/math.h"
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COSMOPOLITAN_C_START_
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#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
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#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384 && \
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__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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union ldshape {
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long double f;
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struct {
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uint64_t m;
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uint16_t se;
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} i;
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};
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#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384 && \
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__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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/* This is the m68k variant of 80-bit long double, and this definition only
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* works on archs where the alignment requirement of uint64_t is <= 4. */
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union ldshape {
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long double f;
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struct {
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uint16_t se;
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uint16_t pad;
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uint64_t m;
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} i;
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};
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#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384 && \
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__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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union ldshape {
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long double f;
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struct {
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uint64_t lo;
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uint32_t mid;
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uint16_t top;
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uint16_t se;
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} i;
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struct {
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uint64_t lo;
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uint64_t hi;
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} i2;
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};
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#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384 && \
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__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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union ldshape {
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long double f;
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struct {
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uint16_t se;
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uint16_t top;
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uint32_t mid;
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uint64_t lo;
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} i;
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struct {
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uint64_t hi;
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uint64_t lo;
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} i2;
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};
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#else
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#error Unsupported long double representation
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#endif
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COSMOPOLITAN_C_END_
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#endif /* COSMOPOLITAN_LIBC_TINYMATH_LDSHAPE_INTERNAL_H_ */
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