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LibCore: Allow MemoryStream::seek to go to EOF

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The method still prevents you to go out of bound.
This commit is contained in:
Lucas CHOLLET 2022-10-12 17:07:15 +02:00 • committed by Andrew Kaster
parent 706638a0d0
commit db40a514f5
1 changed files with 3 additions and 3 deletions
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6
Userland/Libraries/LibCore/MemoryStream.h
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@ -44,19 +44,19 @@ public:
{ {
switch (seek_mode) { switch (seek_mode) {
case SeekMode::SetPosition: case SeekMode::SetPosition:
if (offset >= static_cast<i64>(m_bytes.size())) if (offset > static_cast<i64>(m_bytes.size()))
return Error::from_string_literal("Offset past the end of the stream memory"); return Error::from_string_literal("Offset past the end of the stream memory");
m_offset = offset; m_offset = offset;
break; break;
case SeekMode::FromCurrentPosition: case SeekMode::FromCurrentPosition:
if (offset + static_cast<i64>(m_offset) >= static_cast<i64>(m_bytes.size())) if (offset + static_cast<i64>(m_offset) > static_cast<i64>(m_bytes.size()))
return Error::from_string_literal("Offset past the end of the stream memory"); return Error::from_string_literal("Offset past the end of the stream memory");
m_offset += offset; m_offset += offset;
break; break;
case SeekMode::FromEndPosition: case SeekMode::FromEndPosition:
if (offset >= static_cast<i64>(m_bytes.size())) if (offset > static_cast<i64>(m_bytes.size()))
return Error::from_string_literal("Offset past the start of the stream memory"); return Error::from_string_literal("Offset past the start of the stream memory");
m_offset = m_bytes.size() - offset; m_offset = m_bytes.size() - offset;