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Changed the semantic and the return value of the generic DeleteAttribute (e.g. the one that does not take a type) 

** It must not crash if you try to delete a non existing attribute, 
because you do not have a way of asking for a handle of an attribute for which you do not know the type.
This commit is contained in:
Paolo Cignoni 2011-11-15 11:05:35 +00:00
parent e5842d71d8
commit 2ab3b3ab5b
1 changed files with 20 additions and 8 deletions
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24
vcg/complex/allocate.h
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@ -989,14 +989,18 @@ public:
assert(0);
}
// Generic DeleteAttribute.
// It must not crash if you try to delete a non existing attribute,
// because you do not have a way of asking for a handle of an attribute for which you do not know the type.
static
void DeletePerVertexAttribute( MeshType & m, std::string name){
bool DeletePerVertexAttribute( MeshType & m, std::string name){
AttrIterator i;
PointerToAttribute h1; h1._name = name;
i = m.vert_attr.find(h1);
assert(i!=m.vert_attr.end());
if(i==m.vert_attr.end()) return false;
delete ((SimpleTempDataBase*)(*i)._handle);
m.vert_attr.erase(i);
return true;
}
@ -1077,14 +1081,18 @@ public:
assert(0);
}
// Generic DeleteAttribute.
// It must not crash if you try to delete a non existing attribute,
// because you do not have a way of asking for a handle of an attribute for which you do not know the type.
static
void DeletePerEdgeAttribute( MeshType & m, std::string name){
bool DeletePerEdgeAttribute( MeshType & m, std::string name){
AttrIterator i;
PointerToAttribute h1; h1._name = name;
i = m.edge_attr.find(h1);
assert(i!=m.edge_attr.end());
if(i==m.edge_attr.end()) return false;
delete ((SimpleTempDataBase*)(*i)._handle);
m.edge_attr.erase(i);
return true;
}
/// Per Face Attributes
@ -1176,14 +1184,18 @@ public:
assert(0);
}
// Generic DeleteAttribute.
// It must not crash if you try to delete a non existing attribute,
// because you do not have a way of asking for a handle of an attribute for which you do not know the type.
static
void DeletePerFaceAttribute( MeshType & m, std::string name){
bool DeletePerFaceAttribute( MeshType & m, std::string name){
AttrIterator i;
PointerToAttribute h1; h1._name = name;
i = m.face_attr.find(h1);
assert(i!=m.face_attr.end());
if(i==m.face_attr.end()) return false;
delete ((SimpleTempDataBase*)(*i)._handle);
m.face_attr.erase(i);
return true;
}
/// Per Mesh Attributes