Returning pointer to a certain value in a macro?
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by Andrei Ciobanu
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Published on 2010-06-08T09:07:41Z
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2010/06/08
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Is it possible to write a macro that has a type and a value as its input parameters (MACRO(type,value)
), and returns a valid pointer to a location that holds the submitted value
.
This macro should perform like the following function, but in a more generic manner:
int *val_to_ptr(int val){
int *r = NULL;
r = nm_malloc(sizeof(*r));
*r = val;
return r;
}
Where nm_malloc()
is a failsafe malloc.
The Macro usage should be compatible with this usage:
printf("%d",*MACRO(int,5));
Is it possible to achieve that ?
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