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AK: Support 64-bit integers in BufferStream

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This commit is contained in:
joshua stein 2020-02-02 00:56:03 -06:00 • committed by Andreas Kling
parent b4568b1422
commit 0c4c5b5eb7
1 changed files with 115 additions and 6 deletions
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121
AK/BufferStream.h
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@ -174,12 +174,6 @@ public:
m_buffer[m_offset++] = (u8)(value >> 24);
return *this;
}
BufferStream& operator<<(size_t value)
{
return *this << (u32)value;
}
BufferStream& operator>>(u32& value)
{
if (m_offset + sizeof(value) > unsigned(m_buffer.size())) {
@ -198,6 +192,7 @@ public:
value |= (u8(b0));
return *this;
}
BufferStream& operator<<(i32 value)
{
m_buffer[m_offset++] = value;
@ -225,6 +220,120 @@ public:
return *this;
}
BufferStream& operator<<(u64 value)
{
m_buffer[m_offset++] = value;
m_buffer[m_offset++] = (u8)(value >> 8);
m_buffer[m_offset++] = (u8)(value >> 16);
m_buffer[m_offset++] = (u8)(value >> 24);
m_buffer[m_offset++] = (u8)(value >> 32);
m_buffer[m_offset++] = (u8)(value >> 40);
m_buffer[m_offset++] = (u8)(value >> 48);
m_buffer[m_offset++] = (u8)(value >> 56);
return *this;
}
BufferStream& operator>>(u64& value)
{
if (m_offset + sizeof(value) > unsigned(m_buffer.size())) {
m_read_failure = true;
return *this;
}
u8 b0 = m_buffer[m_offset++];
u8 b1 = m_buffer[m_offset++];
u8 b2 = m_buffer[m_offset++];
u8 b3 = m_buffer[m_offset++];
u8 b4 = m_buffer[m_offset++];
u8 b5 = m_buffer[m_offset++];
u8 b6 = m_buffer[m_offset++];
u8 b7 = m_buffer[m_offset++];
value = 0;
value |= ((long long)b7 << 56);
value |= ((long long)b6 << 48);
value |= ((long long)b5 << 40);
value |= ((long long)b4 << 32);
value |= ((long long)b3 << 24);
value |= ((long long)b2 << 16);
value |= ((long long)b1 << 8);
value |= ((long long)b0);
return *this;
}
BufferStream& operator<<(i64 value)
{
m_buffer[m_offset++] = value;
m_buffer[m_offset++] = (u8)(value >> 8);
m_buffer[m_offset++] = (u8)(value >> 16);
m_buffer[m_offset++] = (u8)(value >> 24);
m_buffer[m_offset++] = (u8)(value >> 32);
m_buffer[m_offset++] = (u8)(value >> 40);
m_buffer[m_offset++] = (u8)(value >> 48);
m_buffer[m_offset++] = (u8)(value >> 56);
return *this;
}
BufferStream& operator>>(i64& value)
{
if (m_offset + sizeof(value) > unsigned(m_buffer.size())) {
m_read_failure = true;
return *this;
}
u8 b0 = m_buffer[m_offset++];
u8 b1 = m_buffer[m_offset++];
u8 b2 = m_buffer[m_offset++];
u8 b3 = m_buffer[m_offset++];
u8 b4 = m_buffer[m_offset++];
u8 b5 = m_buffer[m_offset++];
u8 b6 = m_buffer[m_offset++];
u8 b7 = m_buffer[m_offset++];
value = 0;
value |= ((long long)b7 << 56);
value |= ((long long)b6 << 48);
value |= ((long long)b5 << 40);
value |= ((long long)b4 << 32);
value |= ((long long)b3 << 24);
value |= ((long long)b2 << 16);
value |= ((long long)b1 << 8);
value |= ((long long)b0);
return *this;
}
BufferStream& operator<<(size_t value)
{
if constexpr(sizeof(size_t) == 4)
return *this << (u32)value;
else if constexpr(sizeof(size_t) == 8)
return *this << (u64)value;
ASSERT_NOT_REACHED();
}
BufferStream& operator>>(size_t& value)
{
if constexpr(sizeof(size_t) == 4)
return *this >> (u32&)value;
else if constexpr(sizeof(size_t) == 8)
return *this >> (u64&)value;
ASSERT_NOT_REACHED();
}
#ifndef __i386__
BufferStream& operator<<(ssize_t value)
{
if constexpr(sizeof(ssize_t) == 4)
return *this << (i32)value;
else if constexpr(sizeof(ssize_t) == 8)
return *this << (i64)value;
ASSERT_NOT_REACHED();
}
BufferStream& operator>>(ssize_t& value)
{
if constexpr(sizeof(ssize_t) == 4)
return *this >> (i32&)value;
else if constexpr(sizeof(ssize_t) == 8)
return *this >> (i64&)value;
ASSERT_NOT_REACHED();
}
#endif
BufferStream& operator<<(const char* value)
{
return *this << StringView(value);