Provide broken-down FESAPI version as numbers

[cgodkin]

Is your feature request related to a problem? Please describe. When upgrading from FESAPI 2.2 to FESAPI 2.3, I had to make some code changes. It would have been useful to be able to have my code conditionally build for either version. However, as far as I can see, the only FESAPI version is a string.

Describe the solution you'd like I would suggest that the FESAPI version string be built up from numbers so the C preprocessor could do comparisons. Something like

#define FESAPI_MAJOR_VERSION 2
#define FESAPI_MINOR_VERSION 3
#define STR_HELPER(x) #x
#define STR(x) STR_HELPER(x)
#define FESAPI_VERSION STR(FESAPI_MAJOR_VER) STR(FESAPI_MINOR_VER) 

Describe alternatives you've considered I don't think there's a way to do comparisons with strings in the C preprprocessor.

Additional context I am not too clever about using the C preprocessor so I got the syntax above from here.

[philippeVerney]

It makes perfect sens. I'll look at that soon.

Thank you!

[philippeVerney]

For extra information:

• I decided to stringify the FESAPI version using CMAKE instead of the C preprocessor. I don't really like the C preprocessor indirection.
• If one wants to stringify a macro, gsoap provides such a functionality (same as described above) => SOAP_XSTRINGIFY in stdsoap2.h