Hey, what can I do to have my code as much anci C(I have set an option to compile as C) as possible I think /Za turns of MS extensions. Where can I find document describing those extensions Do I have to set some more options I code C using Visual C++ 2003 Standard and testing C++ Express edition.
And 1 more simple question. When I turn off /Za "getch();" returns me an error. I have to change it to "_getch();", why Will _getch compile with gcc on Linux (I need to compile library I'm developing both on VS and gcc).
(/Za) Option
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(/Za) Option
DutchCoder
Andrey Belkin
ANSI C does not define getch() but it does define getchar() (see 7.19.7.6 in the C Standard). Therefore with the /Za switch the Microsoft C compiler excludes the non-standard name 'getch' and instead just includes the standard name '_getch'. In ANSI C names that begin with a single '_' while they are strictly not part of the C Standard are reserved for library implementors: prepending a library name with '_' is a Standard way for implementors to provide non-standard or extended behavior.
If GCC strictly conforms to the C Standard then there should not be a library function named 'getch'. GCC may provide the _getch function but I am certain that it does provide the getchar function which should be equivalent.