Article View: comp.sys.amiga.tech
Article #2802Re: Fonts and freeing memory
From: Bruce Dawson
Date: Tue, 16 Jan 1990 17:12
Date: Tue, 16 Jan 1990 17:12
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1099 bytes
Ignoring the fact that OpenFont() is NOT needed before a call to
OpenDiskFont(), there is nothing wrong with the following code:
if (!(winfont = (struct TextFont *)OpenFont(&ta)) &&
!(winfont = (struct TextFont *)OpenDiskFont(&ta)))
blah blah it didn't work.
C _guarantees_ that the first expression will be evaluated first.
Furthermore, it guarantees that if the first expression fails, the second
expression will not be executed at all. If you look at K&R, you will find some
programs that _depend_ on this for proper execution. However, as has been
pointed out, from an Amiga point of view that code is bunk, because the call to
OpenFont() isn't necessary.
.Bruce.
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<956@mindlink.UUCP>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!elroy.jpl.nasa.gov!ames!pasteur!ucbvax!van-bc!rsoft!mindlink!a464Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!elroy.jpl.nasa.gov!ames!pasteur!ucbvax!van-bc!rsoft!mindlink!a464 From: a464@mindlink.UUCP (Bruce Dawson) Newsgroups: comp.sys.amiga.tech Subject: Re: Fonts and freeing memory Message-ID: <956@mindlink.UUCP> Date: 16 Jan 90 17:12:02 GMT Organization: MIND LINK! - British Columbia, Canada Lines: 16