Hello all! I try to compile the following test program using GCC 4.6.1: enum class MyEnum: unsigned char { A = 1, B = 2 }; struct MyClass { MyEnum Field1: 3; unsigned char Field2: 5; }; int main() { MyClass Class; } but have error: C:\MinGW\bin>gcc E:/Test/Main.cpp -o E:/Test/Out.exe -std=c++0x E:/Test/Main.cpp:9:18: error: bit-field 'Field1' with non-integral type MSVC 11.0 normally processes this program. Why GCC throws this error and MCVC doesn't? -- With regards, Vladimir