Use UnsignedInt instead of std::size_t for attribute sizes/offsets.

src/Magnum/AbstractShaderProgram.cpp

@@ -806,7 +806,7 @@ void AbstractShaderProgram::uniformImplementationDSA(const GLint location, const
 
 namespace Implementation {
 
-std::size_t FloatAttribute::size(GLint components, DataType dataType) {
+UnsignedInt FloatAttribute::size(GLint components, DataType dataType) {
     switch(dataType) {
         case DataType::UnsignedByte:
         case DataType::Byte:
@@ -829,7 +829,7 @@ std::size_t FloatAttribute::size(GLint components, DataType dataType) {
 }
 
 #ifndef MAGNUM_TARGET_GLES2
-std::size_t IntAttribute::size(GLint components, DataType dataType) {
+UnsignedInt IntAttribute::size(GLint components, DataType dataType) {
     switch(dataType) {
         case DataType::UnsignedByte:
         case DataType::Byte:
@@ -847,7 +847,7 @@ std::size_t IntAttribute::size(GLint components, DataType dataType) {
 #endif
 
 #ifndef MAGNUM_TARGET_GLES
-std::size_t DoubleAttribute::size(GLint components, DataType dataType) {
+UnsignedInt DoubleAttribute::size(GLint components, DataType dataType) {
     switch(dataType) {
         case DataType::Double:
             return 8*components;
@@ -857,7 +857,7 @@ std::size_t DoubleAttribute::size(GLint components, DataType dataType) {
 }
 #endif
 
-std::size_t Attribute<Math::Vector<4, Float>>::size(GLint components, DataType dataType) {
+UnsignedInt Attribute<Math::Vector<4, Float>>::size(GLint components, DataType dataType) {
     #ifndef MAGNUM_TARGET_GLES
     if(components == GL_BGRA) components = 4;
     #endif

src/Magnum/AbstractShaderProgram.h

@@ -1195,7 +1195,7 @@ struct FloatAttribute {
     };
     typedef Containers::EnumSet<DataOption, UnsignedByte> DataOptions;
 
-    static std::size_t MAGNUM_EXPORT size(GLint components, DataType dataType);
+    static UnsignedInt MAGNUM_EXPORT size(GLint components, DataType dataType);
 };
 
 CORRADE_ENUMSET_OPERATORS(FloatAttribute::DataOptions)
@@ -1220,7 +1220,7 @@ struct IntAttribute {
     enum class DataOption: UnsignedByte {};
     typedef Containers::EnumSet<DataOption, UnsignedByte> DataOptions;
 
-    static std::size_t MAGNUM_EXPORT size(GLint components, DataType dataType);
+    static UnsignedInt MAGNUM_EXPORT size(GLint components, DataType dataType);
 };
 
 Debug MAGNUM_EXPORT operator<<(Debug debug, IntAttribute::DataType value);
@@ -1235,7 +1235,7 @@ struct UnsignedIntAttribute {
     typedef IntAttribute::DataOption DataOption;
     typedef Containers::EnumSet<DataOption, UnsignedByte> DataOptions;
 
-    static std::size_t size(GLint components, DataType dataType) {
+    static UnsignedInt size(GLint components, DataType dataType) {
         return IntAttribute::size(components, dataType);
     }
 };
@@ -1254,7 +1254,7 @@ struct DoubleAttribute {
     enum class DataOption: UnsignedByte {};
     typedef Containers::EnumSet<DataOption, UnsignedByte> DataOptions;
 
-    static std::size_t MAGNUM_EXPORT size(GLint components, DataType dataType);
+    static UnsignedInt MAGNUM_EXPORT size(GLint components, DataType dataType);
 };
 
 Debug MAGNUM_EXPORT operator<<(Debug debug, DoubleAttribute::DataType value);
@@ -1308,7 +1308,7 @@ template<> struct Attribute<Math::Vector<4, Float>> {
 
     enum: UnsignedInt { VectorCount = 1 };
 
-    static std::size_t MAGNUM_EXPORT size(GLint components, DataType dataType);
+    static UnsignedInt MAGNUM_EXPORT size(GLint components, DataType dataType);
 };
 
 typedef Math::Vector<4, Float> _Vector4;