#define tracing, ability to show what a macro would expand to

[MikeDavies]

#define tracing:  it should be possible to select a #define'd symbol and cause it to be expanded completely to it final value as the compiler would.  This should take into account compile time constants defined in make etc.

Mike

[volovyan]

C/C++ macro expansion support with ability to show expansion steps. Especially useful if ## are used in the macro.
If I am not mistaken, currently only Eclipse supports this.

[jwiede]

C/C++ macro expansion support with ability to show expansion steps. Especially useful if ## are used in the macro.
If I am not mistaken, currently only Eclipse supports this.

+1 to this suggestion -- it would be nice if SE could serve as a "C/C++ macro previewer/debugger" showing the expansion steps, indicating the step where expansion fails (when it does), etc.

[jwiede]

#define tracing:  it should be possible to select a #define'd symbol and cause it to be expanded completely to it final value as the compiler would.  This should take into account compile time constants defined in make etc.

Mike

Another excellent request, any hope we'll see something like the above in V22?