Is it possible to disable compiler warning C4503?

Question

The following code does NOT suppress ANY C4503 compiler warnings, but it does suppress C4244 warnings.

#pragma warning(push)
#pragma warning(disable:4503)
#pragma warning(disable:4244)

#include <map>
#include <string>

int main(int argc, char *argv[])
{
    class Field;
    typedef std::map<std::string, Field * > Screen;
    typedef std::map<std::string, Screen> WebApp;
    typedef std::map<std::string, WebApp> WebAppTest;
    typedef std::map<std::string, WebAppTest> Hello;
    Hello MyWAT; // The C4503 error is NOT suppressed

    int a;
    a = 5.0f; // The C4244 error is suppressed
}

#pragma warning(pop)

Please definitively explain why C4503 warnings are not suppressed. Note: it might be due to a similar reason as referenced in How can I work around warning C4505 in third party libraries?.

See this and this for more relevant infornation.

I'm using Visual Studio 2008 on a Windows 7 machine.

Answer 1

Not clear from the context, but maybe you have too many #pragma statements? MSDN says:

 The compiler only supports up to 56 #pragma warning statements in a compiland.

Answer 2

Bit weird but you can disable this warning using your exact code just by removing the #pragma warning(pop). I don't understand why though.

I should say I'm on VS2010 C++ Express edition.