Error C2059: syntax error 'constant' [duplicate]

Question

I have the following code in a header file:

enum {false,true};

and I have my main function in main.c. if I change the extention to main.cpp I get the following error:

Error C2059: syntax error 'constant' 

Im using visual c++, any Idea why`?

Answer 1

true and false are keywords representing constant values in C++. You cannot use them to name things such as enum values.

As an example, the following would compile

enum { false_, true_ };

int main() {}