c++ - Args passing and returning scheme
- Jean-Pierre H. Dumas (18/18) Jan 27 2002 I read carefully (?) the docs and there is one
- Jan Knepper (7/23) Jan 27 2002 Exactly. The prototype has to be correct.
I read carefully (?) the docs and there is one puzzling fact about the way DM returns results from C function. (I am still talking about C and Win32) As it is said different from the way MS is doing it, does this really mean that I can *safelly* run a program compiled and linked with DM, dynamically bound to a MS produced dll ? In the doc it is said that it may not work. But then user32.dll, gdi32.dll et al. are giving good results only because they are _pascal ??? If I understand right, with Watcom C, if I compile using register passing conventions (5r) I can still dynamically use MS style dll because they are declared as _cdecl in the .h file. right ? Not same with DM ? Can you technically enlighten me ? Jean-Pierre Dumas
Jan 27 2002
"Jean-Pierre H. Dumas" wrote:I read carefully (?) the docs and there is one puzzling fact about the way DM returns results from C function. (I am still talking about C and Win32) As it is said different from the way MS is doing it, does this really mean that I can *safelly* run a program compiled and linked with DM, dynamically bound to a MS produced dll ?Should be no problem as long as you use the proper prototype.In the doc it is said that it may not work. But then user32.dll, gdi32.dll et al. are giving good results only because they are _pascal ???Exactly. The prototype has to be correct.If I understand right, with Watcom C, if I compile using register passing conventions (5r) I can still dynamically use MS style dll because they are declared as _cdecl in the .h file. right ?Yup!Not same with DM ?Should be the same. There is no -r5 switch though.... Jan
Jan 27 2002