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Always seek to end of file when opening in append mode

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C standard does not guarantee that file opened in append mode is seeked to the end.
In particular, MSVC CRT does not do that, so ftell64 always returns 0.
Fixes some tests on Windows.

Signed-off-by: Osyotr <Osyotr@users.noreply.github.com>
This commit is contained in:
Osyotr 2024-03-31 15:13:15 +03:00 • committed by Alexander Borsuk
parent 506e2481cc
commit 0989641208
1 changed files with 4 additions and 0 deletions
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4
coding/internal/file_data.cpp
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@ -35,7 +35,11 @@ FileData::FileData(string const & fileName, Op op)
m_File = fopen(fileName.c_str(), modes[op]);
if (m_File)
{
if (op == OP_APPEND)
fseek64(m_File, 0, SEEK_END);
return;
}
if (op == OP_WRITE_EXISTING)
{