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Extended ReadMemoryStream class with seek method

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svn-id: r14030
This commit is contained in:
Eugene Sandulenko 2004-06-24 14:06:22 +00:00
parent afbe1efa18
commit 264dc1349b
1 changed files with 29 additions and 0 deletions
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29
common/stream.h
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@ -143,6 +143,35 @@ public:
_size = _sizeOrig;
_pos = 0;
}
void seek(uint32 offs, int whence = SEEK_SET) {
switch (whence) {
case SEEK_SET:
rewind();
if (offs > _size)
offs = _size;
_size -= offs;
_ptr += offs;
_pos += offs;
break;
case SEEK_CUR:
_size -= offs;
_ptr += offs;
_pos += offs;
break;
case SEEK_END:
rewind();
if (offs > _size)
offs = 0;
offs = _size - offs;
_size -= offs;
_ptr += offs;
_pos += offs;
break;
}
}
};
} // End of namespace Common