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qfloat16: make comparison and arithmetic operators hidden friends

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Reduce ADL noise. The operators are not documented, so nothing to adjust.

Change-Id: I02a8bdad6138758106283495098c72770ea74e52
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This commit is contained in:
Volker Hilsheimer 2020-10-26 11:11:47 +01:00
parent 4c36d64bb3
commit 4d269b4561
1 changed files with 84 additions and 82 deletions
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166
src/corelib/global/qfloat16.h
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@ -113,7 +113,90 @@ private:
friend bool qIsNull(qfloat16 f) noexcept;
friend qfloat16 operator-(qfloat16 a) noexcept;
friend inline qfloat16 operator-(qfloat16 a) noexcept
{
qfloat16 f;
f.b16 = a.b16 ^ quint16(0x8000);
return f;
}
friend inline qfloat16 operator+(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) + static_cast<float>(b)); }
friend inline qfloat16 operator-(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) - static_cast<float>(b)); }
friend inline qfloat16 operator*(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) * static_cast<float>(b)); }
friend inline qfloat16 operator/(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) / static_cast<float>(b)); }
#define QF16_MAKE_ARITH_OP_FP(FP, OP) \
friend inline FP operator OP(qfloat16 lhs, FP rhs) noexcept { return static_cast<FP>(lhs) OP rhs; } \
friend inline FP operator OP(FP lhs, qfloat16 rhs) noexcept { return lhs OP static_cast<FP>(rhs); }
#define QF16_MAKE_ARITH_OP_EQ_FP(FP, OP_EQ, OP) \
friend inline qfloat16& operator OP_EQ(qfloat16& lhs, FP rhs) noexcept \
{ lhs = qfloat16(float(static_cast<FP>(lhs) OP rhs)); return lhs; }
#define QF16_MAKE_ARITH_OP(FP) \
QF16_MAKE_ARITH_OP_FP(FP, +) \
QF16_MAKE_ARITH_OP_FP(FP, -) \
QF16_MAKE_ARITH_OP_FP(FP, *) \
QF16_MAKE_ARITH_OP_FP(FP, /) \
QF16_MAKE_ARITH_OP_EQ_FP(FP, +=, +) \
QF16_MAKE_ARITH_OP_EQ_FP(FP, -=, -) \
QF16_MAKE_ARITH_OP_EQ_FP(FP, *=, *) \
QF16_MAKE_ARITH_OP_EQ_FP(FP, /=, /)
QF16_MAKE_ARITH_OP(long double)
QF16_MAKE_ARITH_OP(double)
QF16_MAKE_ARITH_OP(float)
#undef QF16_MAKE_ARITH_OP
#undef QF16_MAKE_ARITH_OP_FP
#define QF16_MAKE_ARITH_OP_INT(OP) \
friend inline double operator OP(qfloat16 lhs, int rhs) noexcept { return static_cast<double>(lhs) OP rhs; } \
friend inline double operator OP(int lhs, qfloat16 rhs) noexcept { return lhs OP static_cast<double>(rhs); }
QF16_MAKE_ARITH_OP_INT(+)
QF16_MAKE_ARITH_OP_INT(-)
QF16_MAKE_ARITH_OP_INT(*)
QF16_MAKE_ARITH_OP_INT(/)
#undef QF16_MAKE_ARITH_OP_INT
QT_WARNING_PUSH
QT_WARNING_DISABLE_FLOAT_COMPARE
friend inline bool operator>(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) > static_cast<float>(b); }
friend inline bool operator<(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) < static_cast<float>(b); }
friend inline bool operator>=(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) >= static_cast<float>(b); }
friend inline bool operator<=(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) <= static_cast<float>(b); }
friend inline bool operator==(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) == static_cast<float>(b); }
friend inline bool operator!=(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) != static_cast<float>(b); }
#define QF16_MAKE_BOOL_OP_FP(FP, OP) \
friend inline bool operator OP(qfloat16 lhs, FP rhs) noexcept { return static_cast<FP>(lhs) OP rhs; } \
friend inline bool operator OP(FP lhs, qfloat16 rhs) noexcept { return lhs OP static_cast<FP>(rhs); }
#define QF16_MAKE_BOOL_OP(FP) \
QF16_MAKE_BOOL_OP_FP(FP, <) \
QF16_MAKE_BOOL_OP_FP(FP, >) \
QF16_MAKE_BOOL_OP_FP(FP, >=) \
QF16_MAKE_BOOL_OP_FP(FP, <=) \
QF16_MAKE_BOOL_OP_FP(FP, ==) \
QF16_MAKE_BOOL_OP_FP(FP, !=)
QF16_MAKE_BOOL_OP(long double)
QF16_MAKE_BOOL_OP(double)
QF16_MAKE_BOOL_OP(float)
#undef QF16_MAKE_BOOL_OP
#undef QF16_MAKE_BOOL_OP_FP
#define QF16_MAKE_BOOL_OP_INT(OP) \
friend inline bool operator OP(qfloat16 a, int b) noexcept { return static_cast<float>(a) OP static_cast<float>(b); } \
friend inline bool operator OP(int a, qfloat16 b) noexcept { return static_cast<float>(a) OP static_cast<float>(b); }
QF16_MAKE_BOOL_OP_INT(>)
QF16_MAKE_BOOL_OP_INT(<)
QF16_MAKE_BOOL_OP_INT(>=)
QF16_MAKE_BOOL_OP_INT(<=)
QF16_MAKE_BOOL_OP_INT(==)
QF16_MAKE_BOOL_OP_INT(!=)
#undef QF16_MAKE_BOOL_OP_INT
QT_WARNING_POP
};
Q_DECLARE_TYPEINFO(qfloat16, Q_PRIMITIVE_TYPE);
@ -214,87 +297,6 @@ inline qfloat16::operator float() const noexcept
}
#endif
inline qfloat16 operator-(qfloat16 a) noexcept
{
qfloat16 f;
f.b16 = a.b16 ^ quint16(0x8000);
return f;
}
inline qfloat16 operator+(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) + static_cast<float>(b)); }
inline qfloat16 operator-(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) - static_cast<float>(b)); }
inline qfloat16 operator*(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) * static_cast<float>(b)); }
inline qfloat16 operator/(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) / static_cast<float>(b)); }
#define QF16_MAKE_ARITH_OP_FP(FP, OP) \
inline FP operator OP(qfloat16 lhs, FP rhs) noexcept { return static_cast<FP>(lhs) OP rhs; } \
inline FP operator OP(FP lhs, qfloat16 rhs) noexcept { return lhs OP static_cast<FP>(rhs); }
#define QF16_MAKE_ARITH_OP_EQ_FP(FP, OP_EQ, OP) \
inline qfloat16& operator OP_EQ(qfloat16& lhs, FP rhs) noexcept \
{ lhs = qfloat16(float(static_cast<FP>(lhs) OP rhs)); return lhs; }
#define QF16_MAKE_ARITH_OP(FP) \
QF16_MAKE_ARITH_OP_FP(FP, +) \
QF16_MAKE_ARITH_OP_FP(FP, -) \
QF16_MAKE_ARITH_OP_FP(FP, *) \
QF16_MAKE_ARITH_OP_FP(FP, /) \
QF16_MAKE_ARITH_OP_EQ_FP(FP, +=, +) \
QF16_MAKE_ARITH_OP_EQ_FP(FP, -=, -) \
QF16_MAKE_ARITH_OP_EQ_FP(FP, *=, *) \
QF16_MAKE_ARITH_OP_EQ_FP(FP, /=, /)
QF16_MAKE_ARITH_OP(long double)
QF16_MAKE_ARITH_OP(double)
QF16_MAKE_ARITH_OP(float)
#undef QF16_MAKE_ARITH_OP
#undef QF16_MAKE_ARITH_OP_FP
#define QF16_MAKE_ARITH_OP_INT(OP) \
inline double operator OP(qfloat16 lhs, int rhs) noexcept { return static_cast<double>(lhs) OP rhs; } \
inline double operator OP(int lhs, qfloat16 rhs) noexcept { return lhs OP static_cast<double>(rhs); }
QF16_MAKE_ARITH_OP_INT(+)
QF16_MAKE_ARITH_OP_INT(-)
QF16_MAKE_ARITH_OP_INT(*)
QF16_MAKE_ARITH_OP_INT(/)
#undef QF16_MAKE_ARITH_OP_INT
QT_WARNING_PUSH
QT_WARNING_DISABLE_FLOAT_COMPARE
inline bool operator>(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) > static_cast<float>(b); }
inline bool operator<(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) < static_cast<float>(b); }
inline bool operator>=(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) >= static_cast<float>(b); }
inline bool operator<=(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) <= static_cast<float>(b); }
inline bool operator==(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) == static_cast<float>(b); }
inline bool operator!=(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) != static_cast<float>(b); }
#define QF16_MAKE_BOOL_OP_FP(FP, OP) \
inline bool operator OP(qfloat16 lhs, FP rhs) noexcept { return static_cast<FP>(lhs) OP rhs; } \
inline bool operator OP(FP lhs, qfloat16 rhs) noexcept { return lhs OP static_cast<FP>(rhs); }
#define QF16_MAKE_BOOL_OP(FP) \
QF16_MAKE_BOOL_OP_FP(FP, <) \
QF16_MAKE_BOOL_OP_FP(FP, >) \
QF16_MAKE_BOOL_OP_FP(FP, >=) \
QF16_MAKE_BOOL_OP_FP(FP, <=) \
QF16_MAKE_BOOL_OP_FP(FP, ==) \
QF16_MAKE_BOOL_OP_FP(FP, !=)
QF16_MAKE_BOOL_OP(long double)
QF16_MAKE_BOOL_OP(double)
QF16_MAKE_BOOL_OP(float)
#undef QF16_MAKE_BOOL_OP
#undef QF16_MAKE_BOOL_OP_FP
#define QF16_MAKE_BOOL_OP_INT(OP) \
inline bool operator OP(qfloat16 a, int b) noexcept { return static_cast<float>(a) OP static_cast<float>(b); } \
inline bool operator OP(int a, qfloat16 b) noexcept { return static_cast<float>(a) OP static_cast<float>(b); }
QF16_MAKE_BOOL_OP_INT(>)
QF16_MAKE_BOOL_OP_INT(<)
QF16_MAKE_BOOL_OP_INT(>=)
QF16_MAKE_BOOL_OP_INT(<=)
QF16_MAKE_BOOL_OP_INT(==)
QF16_MAKE_BOOL_OP_INT(!=)
#undef QF16_MAKE_BOOL_OP_INT
QT_WARNING_POP
/*!
\internal
*/