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From: | "Paul Lutus" <nospam AT nosite DOT com> |
Newsgroups: | alt.comp.lang.learn.c-c++,comp.lang.c++,comp.os.msdos.djgpp,comp.os.msdos.programmer |
References: | <7n6153$eqc$1 AT autumn DOT news DOT rcn DOT net> |
Subject: | Re: Help with Casts... |
Lines: | 67 |
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Message-ID: | <coxl3.52065$AU3.1181497@news2.giganews.com> |
NNTP-Posting-Date: | Wed, 21 Jul 1999 23:48:08 CDT |
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Date: | Wed, 21 Jul 1999 21:48:06 -0700 |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
<< I'm am having trouble understanding casts. >> No, you aren't. You are having trouble understanding pointers. << Let's say I want to call a program >> You mean call a function. << and it takes three variables. >> You mean three arguments. << Two of those variables are casts and are supposed to return values from what I understand. >> You mean two of the three arguments are pointers and can be modified within the function. << How do I get those two values. >> "Get?" Don't you mean "set?" I hope this answer helps -- code almost always conveys more meaning in a newsgroup than prose: #include <stdio.h> void modifyMyVals(int *a,int *b) { *a = 3; *b = 4; } int main() { int a = 1, b = 2; printf("Before: %d %d\n",a,b); modifyMyVals(&a,&b); printf("After: %d %d\n",a,b); return 0; } -- Paul Lutus www.arachnoid.com Tom wrote in message <7n6153$eqc$1 AT autumn DOT news DOT rcn DOT net>... >I'm am having trouble understanding casts. Let's say I want to call a >program and it takes three variables. Two of those variables are casts and >are supposed to return values from what I understand. How do I get those >two values. > >Example; > >int playcdtrack(tracknumber, *startingposition, *endingposition) > >How do I get the variables startingposition and endingposition of let's say >track #1? > >If anyone can help I would greatly appreciate. Thanks. > >Tom > >
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