diff options
Diffstat (limited to 'src/corelib/io/qbuffer.cpp')
| -rw-r--r-- | src/corelib/io/qbuffer.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/corelib/io/qbuffer.cpp b/src/corelib/io/qbuffer.cpp index 3da76a35fb..2b53f09796 100644 --- a/src/corelib/io/qbuffer.cpp +++ b/src/corelib/io/qbuffer.cpp @@ -360,7 +360,9 @@ qint64 QBuffer::size() const bool QBuffer::seek(qint64 pos) { Q_D(QBuffer); - if (pos > d->buf->size() && isWritable()) { + const auto oldBufSize = d->buf->size(); + constexpr qint64 MaxSeekPos = (std::numeric_limits<decltype(oldBufSize)>::max)(); + if (pos <= MaxSeekPos && pos > oldBufSize && isWritable()) { if (seek(d->buf->size())) { const qint64 gapSize = pos - d->buf->size(); if (write(QByteArray(gapSize, 0)) != gapSize) { @@ -371,7 +373,7 @@ bool QBuffer::seek(qint64 pos) return false; } } else if (pos > d->buf->size() || pos < 0) { - qWarning("QBuffer::seek: Invalid pos: %d", int(pos)); + qWarning("QBuffer::seek: Invalid pos: %lld", pos); return false; } return QIODevice::seek(pos); |