Visual C++ 10 lowercases the __FILE__ macro

Question

The `__FILE__` preprocessor macro in Visual C++ 10 expands to the name of the source module, but in lowercase, e.g. ``` c:\path	o\my\file\somesource.cpp ``` when the file name is actually ``` SomeSource.cpp ``` Is it possible to change this behaviour?

Accepted Answer

As suggested by Hans Passant, I asked the question on Microsoft Connect and got the following answer:

Thanks for noting this. This behavior has existed for a while, at least back to VS 2008. Changing the default behavior could potentially be a breaking change for other customers, so we would prefer to keep the current behavior. Since FOO.TXT is mostly the same as foo.txt for the file system, hopefully using `__FILE__` with any comparison can just involve a case-insensitive compare for your application.

Visual C++ 10 lowercases the FILE macro

Solution

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