There's a couple of things I should clarify regarding my previous reply about the stack calculation.
1- In discussing disabled optimization for debug: Instead of "often puts variables at a gross alignment" perhaps I should have said "often puts storage for variables at a maximum 8-byte alignment". 2- Microsoft's compilers pretty much ignore the "register" qualifier. They're smart enough to forbid taking the address of a register variable but that's as far as they go. Thus the results others get for the match() stack requirement will often differ from what a MSVC compiler would produce. I don't know if gcc will/won't pass some of the match() parameters and/or use its other "register" vars as CPU registers or put them on the stack. Regards, Graycode -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
