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streambuf API conformance

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This commit is contained in:
Dan Paulat 2023-04-17 18:34:58 -05:00
parent cdd4ced28e
commit 78d00fc67b
1 changed files with 12 additions and 4 deletions
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16
wxdata/source/scwx/util/vectorbuf.cpp
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@ -33,8 +33,12 @@ vectorbuf::pos_type vectorbuf::seekoff(std::streamoff off,
off_type newOffset;
switch (way)
{
case std::ios_base::beg: newOffset = 0; break;
case std::ios_base::end: newOffset = seekDist; break;
case std::ios_base::beg:
newOffset = 0;
break;
case std::ios_base::end:
newOffset = seekDist;
break;
case std::ios_base::cur:
{
constexpr auto BOTH = std::ios_base::in | std::ios_base::out;
@ -54,9 +58,11 @@ vectorbuf::pos_type vectorbuf::seekoff(std::streamoff off,
break;
}
}
return pos_type(off_type(-1));
}
default: return pos_type(off_type(-1));
default:
return pos_type(off_type(-1));
}
if (static_cast<unsigned long long>(off) + newOffset >
@ -80,7 +86,9 @@ vectorbuf::pos_type vectorbuf::seekoff(std::streamoff off,
if ((which & std::ios_base::out) && pptrOld)
{
setp(seekLow, next, epptr());
setp(seekLow, epptr());
// If offset is > 4 GB, this won't properly position the put pointer
pbump(static_cast<int>(off));
}
return pos_type(off);