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Prevent front() and operator[] from causing undefined behavior

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pull/541/head
capostrophic 5 years ago
parent 4d4a21ff09
commit 6928adcee1
3 changed files with 23 additions and 26 deletions
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9
apps/openmw/mwgui/bookpage.cpp
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@ -112,10 +112,7 @@ struct TypesetBookImpl : TypesetBook
if (i->empty())
return Range (Utf8Point (nullptr), Utf8Point (nullptr));
Utf8Point begin = &i->front ();
Utf8Point end = &i->front () + i->size ();
return Range (begin, end);
return Range (i->data(), i->data() + i->size());
}
size_t pageCount () const { return mPages.size (); }
@ -346,8 +343,8 @@ struct TypesetBookImpl::Typesetter : BookTypesetter
assert (end <= mCurrentContent->size ());
assert (begin <= mCurrentContent->size ());
Utf8Point begin_ = &mCurrentContent->front () + begin;
Utf8Point end_ = &mCurrentContent->front () + end ;
Utf8Point begin_ = mCurrentContent->data() + begin;
Utf8Point end_ = mCurrentContent->data() + end;
writeImpl (static_cast <StyleImpl*> (style), begin_, end_);
}

14
components/nif/nifstream.hpp
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@ -160,9 +160,9 @@ public:
{
std::vector<char> str(length + 1, 0);
inp->read(&str[0], length);
inp->read(str.data(), length);
return &str[0];
return str.data();
}
///Read in a string of the length specified in the file
std::string getString()
@ -181,34 +181,34 @@ public:
void getUShorts(std::vector<unsigned short> &vec, size_t size)
{
vec.resize(size);
readLittleEndianDynamicBufferOfType<unsigned short,unsigned short>(inp, &vec.front(), size);
readLittleEndianDynamicBufferOfType<unsigned short,unsigned short>(inp, vec.data(), size);
}
void getFloats(std::vector<float> &vec, size_t size)
{
vec.resize(size);
readLittleEndianDynamicBufferOfType<float,uint32_t>(inp, &vec.front(), size);
readLittleEndianDynamicBufferOfType<float,uint32_t>(inp, vec.data(), size);
}
void getVector2s(std::vector<osg::Vec2f> &vec, size_t size)
{
vec.resize(size);
/* The packed storage of each Vec2f is 2 floats exactly */
readLittleEndianDynamicBufferOfType<float,uint32_t>(inp,(float*) &vec.front(), size*2);
readLittleEndianDynamicBufferOfType<float,uint32_t>(inp,(float*)vec.data(), size*2);
}
void getVector3s(std::vector<osg::Vec3f> &vec, size_t size)
{
vec.resize(size);
/* The packed storage of each Vec3f is 3 floats exactly */
readLittleEndianDynamicBufferOfType<float,uint32_t>(inp, (float*) &vec.front(), size*3);
readLittleEndianDynamicBufferOfType<float,uint32_t>(inp, (float*)vec.data(), size*3);
}
void getVector4s(std::vector<osg::Vec4f> &vec, size_t size)
{
vec.resize(size);
/* The packed storage of each Vec4f is 4 floats exactly */
readLittleEndianDynamicBufferOfType<float,uint32_t>(inp, (float*) &vec.front(), size*4);
readLittleEndianDynamicBufferOfType<float,uint32_t>(inp, (float*)vec.data(), size*4);
}
void getQuaternions(std::vector<osg::Quat> &quat, size_t size)

26
components/nifosg/nifloader.cpp
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@ -1034,11 +1034,10 @@ namespace NifOsg
{
const Nif::NiTriShapeData* data = triShape->data.getPtr();
{
geometry->setVertexArray(new osg::Vec3Array(data->vertices.size(), &data->vertices[0]));
if (!data->normals.empty())
geometry->setNormalArray(new osg::Vec3Array(data->normals.size(), &data->normals[0]), osg::Array::BIND_PER_VERTEX);
}
if (!data->vertices.empty())
geometry->setVertexArray(new osg::Vec3Array(data->vertices.size(), data->vertices.data()));
if (!data->normals.empty())
geometry->setNormalArray(new osg::Vec3Array(data->normals.size(), data->normals.data()), osg::Array::BIND_PER_VERTEX);
int textureStage = 0;
for (std::vector<int>::const_iterator it = boundTextures.begin(); it != boundTextures.end(); ++it,++textureStage)
@ -1048,19 +1047,20 @@ namespace NifOsg
{
Log(Debug::Verbose) << "Out of bounds UV set " << uvSet << " on TriShape \"" << triShape->name << "\" in " << mFilename;
if (!data->uvlist.empty())
geometry->setTexCoordArray(textureStage, new osg::Vec2Array(data->uvlist[0].size(), &data->uvlist[0][0]), osg::Array::BIND_PER_VERTEX);
geometry->setTexCoordArray(textureStage, new osg::Vec2Array(data->uvlist[0].size(), data->uvlist[0].data()), osg::Array::BIND_PER_VERTEX);
continue;
}
geometry->setTexCoordArray(textureStage, new osg::Vec2Array(data->uvlist[uvSet].size(), &data->uvlist[uvSet][0]), osg::Array::BIND_PER_VERTEX);
geometry->setTexCoordArray(textureStage, new osg::Vec2Array(data->uvlist[uvSet].size(), data->uvlist[uvSet].data()), osg::Array::BIND_PER_VERTEX);
}
if (!data->colors.empty())
geometry->setColorArray(new osg::Vec4Array(data->colors.size(), &data->colors[0]), osg::Array::BIND_PER_VERTEX);
geometry->setColorArray(new osg::Vec4Array(data->colors.size(), data->colors.data()), osg::Array::BIND_PER_VERTEX);
geometry->addPrimitiveSet(new osg::DrawElementsUShort(osg::PrimitiveSet::TRIANGLES,
data->triangles.size(),
(unsigned short*)&data->triangles[0]));
if (!data->triangles.empty())
geometry->addPrimitiveSet(new osg::DrawElementsUShort(osg::PrimitiveSet::TRIANGLES,
data->triangles.size(),
(unsigned short*)data->triangles.data()));
// osg::Material properties are handled here for two reasons:
// - if there are no vertex colors, we need to disable colorMode.
@ -1115,7 +1115,7 @@ namespace NifOsg
return morphGeom;
// Note we are not interested in morph 0, which just contains the original vertices
for (unsigned int i = 1; i < morphs.size(); ++i)
morphGeom->addMorphTarget(new osg::Vec3Array(morphs[i].mVertices.size(), &morphs[i].mVertices[0]), 0.f);
morphGeom->addMorphTarget(new osg::Vec3Array(morphs[i].mVertices.size(), morphs[i].mVertices.data()), 0.f);
return morphGeom;
}
@ -1282,7 +1282,7 @@ namespace NifOsg
}
unsigned char* data = new unsigned char[pixelData->data.size()];
memcpy(data, &pixelData->data[0], pixelData->data.size());
memcpy(data, pixelData->data.data(), pixelData->data.size());
image->setImage(width, height, 1, pixelformat, pixelformat, GL_UNSIGNED_BYTE, data, osg::Image::USE_NEW_DELETE);
image->setMipmapLevels(mipmapVector);

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