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--- core/fxcrt/string_data_template.h
+++ core/fxcrt/string_data_template.h
@@ -78,7 +78,8 @@
void CopyContentsAt(size_t offset, const CharType* pStr, size_t nLen) {
ASSERT(offset >= 0 && nLen >= 0 && offset + nLen <= m_nAllocLength);
- memcpy(m_String + offset, pStr, nLen * sizeof(CharType));
+ if (nLen != 0)
+ memcpy(m_String + offset, pStr, nLen * sizeof(CharType));
m_String[offset + nLen] = 0;
}
--- core/fxge/cfx_facecache.cpp
+++ core/fxge/cfx_facecache.cpp
@@ -183,7 +183,8 @@ std::unique_ptr<CFX_GlyphBitmap> CFX_FaceCache::RenderGlyph(
}
}
} else {
- memset(pDestBuf, 0, dest_pitch * bmheight);
+ if (dest_pitch != 0 && bmheight != 0)
+ memset(pDestBuf, 0, dest_pitch * bmheight);
int rowbytes = std::min(abs(src_pitch), dest_pitch);
for (int row = 0; row < bmheight; row++)
memcpy(pDestBuf + row * dest_pitch, pSrcBuf + row * src_pitch, rowbytes);
--- third_party/agg23/agg_rasterizer_scanline_aa.h
+++ third_party/agg23/agg_rasterizer_scanline_aa.h
@@ -349,14 +349,14 @@ public:
cover += cur_cell->cover;
}
if(area) {
- alpha = calculate_alpha((cover << (poly_base_shift + 1)) - area, no_smooth);
+ alpha = calculate_alpha(int(unsigned(cover) << (poly_base_shift + 1)) - area, no_smooth);
if(alpha) {
sl.add_cell(x, alpha);
}
x++;
}
if(num_cells && cur_cell->x > x) {
- alpha = calculate_alpha(cover << (poly_base_shift + 1), no_smooth);
+ alpha = calculate_alpha(unsigned(cover) << (poly_base_shift + 1), no_smooth);
if(alpha) {
sl.add_span(x, cur_cell->x - x, alpha);
}
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