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Rework static_assert

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Stephen F. Booth 2024-12-09 12:15:24 -06:00 committed by Urs Fleisch
parent 1179c04ae5
commit af5e8e8e67
1 changed files with 4 additions and 8 deletions
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12
taglib/toolkit/tbytevector.cpp
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@ -140,14 +140,13 @@ T toNumber(const ByteVector &v, size_t offset, bool mostSignificantByteFirst)
::memcpy(&tmp, v.data() + offset, sizeof(T));
if(swap) {
static_assert(sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8, "Byte swap requested for type with invalid size");
if constexpr (sizeof(T) == 2)
return Utils::byteSwap(static_cast<uint16_t>(tmp));
else if constexpr (sizeof(T) == 4)
return Utils::byteSwap(static_cast<uint32_t>(tmp));
else if constexpr (sizeof(T) == 8)
return Utils::byteSwap(static_cast<uint64_t>(tmp));
else
static_assert(false, "Byte swap requested for type with invalid size");
}
return tmp;
}
@ -158,14 +157,13 @@ ByteVector fromNumber(T value, bool mostSignificantByteFirst)
const bool isBigEndian = Utils::systemByteOrder() == Utils::BigEndian;
if(mostSignificantByteFirst != isBigEndian) {
static_assert(sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8, "Byte swap requested for type with invalid size");
if constexpr (sizeof(T) == 2)
value = Utils::byteSwap(static_cast<uint16_t>(value));
else if constexpr (sizeof(T) == 4)
value = Utils::byteSwap(static_cast<uint32_t>(value));
else if constexpr (sizeof(T) == 8)
value = Utils::byteSwap(static_cast<uint64_t>(value));
else
static_assert(false, "Byte swap requested for type with invalid size");
}
return ByteVector(reinterpret_cast<const char *>(&value), sizeof(T));
@ -186,14 +184,13 @@ TFloat toFloat(const ByteVector &v, size_t offset)
::memcpy(&tmp, v.data() + offset, sizeof(TInt));
if(ENDIAN != Utils::systemByteOrder()) {
static_assert(sizeof(TInt) == 2 || sizeof(TInt) == 4 || sizeof(TInt) == 8, "Byte swap requested for type with invalid size");
if constexpr (sizeof(TInt) == 2)
tmp.i = Utils::byteSwap(static_cast<uint16_t>(tmp.i));
else if constexpr (sizeof(TInt) == 4)
tmp.i = Utils::byteSwap(static_cast<uint32_t>(tmp.i));
else if constexpr (sizeof(TInt) == 8)
tmp.i = Utils::byteSwap(static_cast<uint64_t>(tmp.i));
else
static_assert(false, "Byte swap requested for type with invalid size");
}
return tmp.f;
@ -209,14 +206,13 @@ ByteVector fromFloat(TFloat value)
tmp.f = value;
if(ENDIAN != Utils::systemByteOrder()) {
static_assert(sizeof(TInt) == 2 || sizeof(TInt) == 4 || sizeof(TInt) == 8, "Byte swap requested for type with invalid size");
if constexpr (sizeof(TInt) == 2)
tmp.i = Utils::byteSwap(static_cast<uint16_t>(tmp.i));
else if constexpr (sizeof(TInt) == 4)
tmp.i = Utils::byteSwap(static_cast<uint32_t>(tmp.i));
else if constexpr (sizeof(TInt) == 8)
tmp.i = Utils::byteSwap(static_cast<uint64_t>(tmp.i));
else
static_assert(false, "Byte swap requested for type with invalid size");
}
return ByteVector(reinterpret_cast<char *>(&tmp), sizeof(TInt));