blob: 53a74cef6f0523c4586dbfc7afce7ce432fddf1a (
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backport https://github.com/parisolab/mathmod/commit/ddf9239f10fb0e07603297c06a23b7adeae8e323.patch
see also https://github.com/parisolab/mathmod/issues/303
fix comparison for clang
--- a/ui_modules/mathmod.cpp
+++ b/ui_modules/mathmod.cpp
@@ -1665,7 +1665,7 @@ void MathMod::CopyData(ObjectProperties *scene)
{
glBindBuffer(GL_ARRAY_BUFFER, vbo[0]);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vbo[1]);
- if(scene->VertxNumber>previousVertxNumber>0)
+ if((scene->VertxNumber>previousVertxNumber) && (scene->VertxNumber>0))
{
glBufferData(GL_ARRAY_BUFFER, sizeof(GL_FLOAT)*10*(scene->VertxNumber+(12+60+36)), scene->ArrayNorVer_localPt, GL_STATIC_DRAW);
previousVertxNumber = scene->VertxNumber;
@@ -1676,7 +1676,8 @@ void MathMod::CopyData(ObjectProperties *scene)
previousVertxNumber = scene->VertxNumber;
}
- if((scene->PolyNumber + scene->NbPolygnNbVertexPtMinSize)>previousPolyNumberNbPolygnNbVertexPtMin)
+ if(((scene->PolyNumber + scene->NbPolygnNbVertexPtMinSize)>previousPolyNumberNbPolygnNbVertexPtMin) &&
+ ((scene->PolyNumber + scene->NbPolygnNbVertexPtMinSize)>0))
{
glBufferData(GL_ELEMENT_ARRAY_BUFFER,sizeof(GLuint)*(scene->PolyNumber + scene->NbPolygnNbVertexPtMinSize), scene->PolyIndices_localPt, GL_STATIC_DRAW);
previousPolyNumberNbPolygnNbVertexPtMin = (scene->PolyNumber + scene->NbPolygnNbVertexPtMinSize);
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