diff options
Diffstat (limited to 'src/corelib/tools/qstring.cpp')
| -rw-r--r-- | src/corelib/tools/qstring.cpp | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/src/corelib/tools/qstring.cpp b/src/corelib/tools/qstring.cpp index 6c1ee25234..c79bced52e 100644 --- a/src/corelib/tools/qstring.cpp +++ b/src/corelib/tools/qstring.cpp @@ -581,7 +581,7 @@ static int ucstrncmp(const QChar *a, const uchar *c, int l) // we'll read uc[offset..offset+7] (16 bytes) and c[offset..offset+7] (8 bytes) if (uc + offset + 7 < e) { // same, but we're using an 8-byte load - __m128i chunk = _mm_cvtsi64_si128(qUnalignedLoad<long long>(c + offset)); + __m128i chunk = _mm_cvtsi64_si128(qFromUnaligned<long long>(c + offset)); __m128i secondHalf = _mm_unpacklo_epi8(chunk, nullmask); __m128i ucdata = _mm_loadu_si128((const __m128i*)(uc + offset)); @@ -1757,10 +1757,13 @@ void QString::resize(int size, QChar fillChar) void QString::reallocData(uint alloc, bool grow) { + size_t blockSize; if (grow) { - if (alloc > (uint(MaxAllocSize) - sizeof(Data)) / sizeof(QChar)) - qBadAlloc(); - alloc = qAllocMore(alloc * sizeof(QChar), sizeof(Data)) / sizeof(QChar); + auto r = qCalculateGrowingBlockSize(alloc, sizeof(QChar), sizeof(Data)); + blockSize = r.size; + alloc = uint(r.elementCount); + } else { + blockSize = qCalculateBlockSize(alloc, sizeof(QChar), sizeof(Data)); } if (d->ref.isShared() || IS_RAW_DATA(d)) { @@ -1774,7 +1777,7 @@ void QString::reallocData(uint alloc, bool grow) Data::deallocate(d); d = x; } else { - Data *p = static_cast<Data *>(::realloc(d, sizeof(Data) + alloc * sizeof(QChar))); + Data *p = static_cast<Data *>(::realloc(d, blockSize)); Q_CHECK_PTR(p); d = p; d->alloc = alloc; @@ -2343,8 +2346,7 @@ QString &QString::remove(QChar ch, Qt::CaseSensitivity cs) */ QString &QString::replace(int pos, int len, const QString &after) { - QString copy = after; - return replace(pos, len, copy.constData(), copy.length()); + return replace(pos, len, after.constData(), after.length()); } /*! |