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Merge pull request #8645 from brian-armstrong-discord:bugfix_inmemory_exif

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This commit is contained in:
Alexander Alekhin 2017-04-25 10:32:00 +00:00
commit a7e80f7c10
1 changed files with 6 additions and 6 deletions
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12
modules/imgcodecs/src/loadsave.cpp
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@ -70,21 +70,21 @@ protected:
std::ios_base::seekdir dir, std::ios_base::seekdir dir,
std::ios_base::openmode ) std::ios_base::openmode )
{ {
// get absolute offset char* whence = eback();
off_type off = offset;
if (dir == std::ios_base::cur) if (dir == std::ios_base::cur)
{ {
off += gptr() - eback(); whence = gptr();
} }
else if (dir == std::ios_base::end) else if (dir == std::ios_base::end)
{ {
off += egptr() - eback(); whence = egptr();
} }
char* to = whence + offset;
// check limits // check limits
if (off >= (off_type)0 && off <= egptr() - eback()) if (to >= eback() && to <= egptr())
{ {
setg(eback(), gptr() + off, egptr()); setg(eback(), to, egptr());
return gptr() - eback(); return gptr() - eback();
} }