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From: | Nate Eldredge <neldredge AT hmc DOT edu> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: HELP ! (returning structures) |
Date: | Wed, 29 Sep 1999 16:44:40 -0700 |
Organization: | Harvey Mudd College |
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Message-ID: | <37F2A468.75644B8@hmc.edu> |
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To: | djgpp AT delorie DOT com |
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Reply-To: | djgpp AT delorie DOT com |
Damian Yerrick wrote: > Davin, your solution is IMHO not the best. Passing structures > on the stack is inefficient. The best way to return a structure is > to fill in a blank structure pointed to in the arguments. Sometimes. Actually, returning structures is implemented like this underneath (the function is given a pointer which tells it where to place the returned struct). If GCC were smarter it could optimize the temporary local struct out of existence (and perhaps it does for sufficiently simple cases, I haven't checked). [...] > Davin, I challenge you to find one C library function that returns > a struct on the stack. :-) Can an outsider play? `div' Unix has some in networking functions, like `inet_makeaddr'. -- Nate Eldredge neldredge AT hmc DOT edu
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