[algogeeks] doubt about macro.......
swap(a,b,c) c t;t=a;a=b;b=t;
int main()
{
int g=1,h=2;
swap(g,h,int);
}
how the actual values are replace???
a and b are replaced with g and hactual are replace..can somebody tell
me expanded source code???
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Re: [algogeeks] doubt about macro.......
Think #define as a simple text substitution macro.
Assume you are the preprocessor. Copy/paste the exact code for the macro
into the places where your program tried to use and then replace the macro
parameters with the arguments that you used to invoke the macro.
The advantage of a macro is that it can be type-neutral (also disadvantage
sometimes ), and it is inlined directly into the code, so there is not any
function call overhead.
correct me if am wrong :D
On Sat, Feb 4, 2012 at 5:32 AM, rahul sharma rahul23111...@gmail.comwrote:
swap(a,b,c) c t;t=a;a=b;b=t;
int main()
{
int g=1,h=2;
swap(g,h,int);
}
how the actual values are replace???
a and b are replaced with g and hactual are replace..can somebody tell
me expanded source code???
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Sharad Dixit
B.Tech(IT)
Indian Institute of Information Technology ,Allahabad
-
We aim above the mark to hit the mark.
~ Ralph Waldo Emerson
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Re: [algogeeks] doubt about macro.......
yeahjust wana cnfm that parameters are replaced actually...thnx
On Sat, Feb 4, 2012 at 4:40 PM, sharad dixit sharad.emine...@gmail.comwrote:
Think #define as a simple text substitution macro.
Assume you are the preprocessor. Copy/paste the exact code for the macro
into the places where your program tried to use and then replace the macro
parameters with the arguments that you used to invoke the macro.
The advantage of a macro is that it can be type-neutral (also disadvantage
sometimes ), and it is inlined directly into the code, so there is not any
function call overhead.
correct me if am wrong :D
On Sat, Feb 4, 2012 at 5:32 AM, rahul sharma rahul23111...@gmail.comwrote:
swap(a,b,c) c t;t=a;a=b;b=t;
int main()
{
int g=1,h=2;
swap(g,h,int);
}
how the actual values are replace???
a and b are replaced with g and hactual are replace..can somebody
tell me expanded source code???
--
You received this message because you are subscribed to the Google Groups
Algorithm Geeks group.
To post to this group, send email to algogeeks@googlegroups.com.
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algogeeks+unsubscr...@googlegroups.com.
For more options, visit this group at
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--
Sharad Dixit
B.Tech(IT)
Indian Institute of Information Technology ,Allahabad
-
We aim above the mark to hit the mark.
~ Ralph Waldo Emerson
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Re: [algogeeks] doubt about macro.......
int main ()
{
int g= 1, h= 2;
int t; t=g;g=h;h=t;
}
hope this helps
On 2/4/12, rahul sharma rahul23111...@gmail.com wrote:
swap(a,b,c) c t;t=a;a=b;b=t;
int main()
{
int g=1,h=2;
swap(g,h,int);
}
how the actual values are replace???
a and b are replaced with g and hactual are replace..can somebody tell
me expanded source code???
--
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algogeeks+unsubscr...@googlegroups.com.
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Re: [algogeeks] doubt about macro.......
Yep..that's correct. In this context, I would like to understand a little more about inline functions? Other than they being a type sensitive compared to macro, what else differs them from macro, and does each call to inline function, does get replaced by its definition!. Any link, that can give me little more insight into its intricacies, if u can share. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To view this discussion on the web visit https://groups.google.com/d/msg/algogeeks/-/DJUpIAVj8y0J. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
