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[libc][complex] check that cfloat128 is not defined as _Complex long double #119324

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Merged
merged 2 commits into from
Dec 10, 2024
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[libc][complex] check that cfloat128 is not defined as _Complex long double #119324

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8f3e7c3
fix: check that cfloat128 is not defined _Complex long double
Sh0g0-1758 Dec 10, 2024
c3185c3
nit
Sh0g0-1758 Dec 10, 2024
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1 change: 1 addition & 0 deletions libc/include/llvm-libc-types/cfloat128.h
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,7 @@ typedef _Complex _Float128 cfloat128;
typedef _Complex __float128 cfloat128;
#elif (LDBL_MANT_DIG == 113)
#define LIBC_TYPES_HAS_CFLOAT128
#define LIBC_TYPES_CFLOAT128_IS_COMPLEX_LONG_DOUBLE
typedef _Complex long double cfloat128;
#endif

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4 changes: 4 additions & 0 deletions libc/src/__support/complex_type.h
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Expand Up @@ -37,10 +37,12 @@ template <> struct make_complex<float16> {
};
#endif
#if defined(LIBC_TYPES_HAS_CFLOAT128)
#if !(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT128)
template <> struct make_complex<float128> {
using type = cfloat128;
};
#endif
#endif

template <typename T> using make_complex_t = typename make_complex<T>::type;

Expand All @@ -62,10 +64,12 @@ template <> struct make_real<cfloat16> {
};
#endif
#if defined(LIBC_TYPES_HAS_CFLOAT128)
#if !(LIBC_TYPES_CFLOAT128_IS_COMPLEX_LONG_DOUBLE)
template <> struct make_real<cfloat128> {
using type = float128;
};
#endif
#endif

template <typename T> using make_real_t = typename make_real<T>::type;

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