typedef to store pointers in C

Posted by seriouslion on Stack Overflow See other posts from Stack Overflow or by seriouslion
Published on 2010-05-23T17:41:21Z Indexed on 2010/05/23 17:50 UTC
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c

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pointers

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typedef

The Size of pointer depends on the arch of the machine.

So sizeof(int*)=sizeof(int) or sizeof(int*)=sizeof(long int)

I want to have a custom data type which is either int or long int depending on the size of pointer.

I tried to use macro #if, but the condition for macros does not allow sizeof operator.

Also when using if-else, typedef is limited to the scope of if.

if((sizeof(int)==sizeof(int *)){
  typedef int ptrtype;
}
else{
  typedef long int ptrtype;
}
//ptrtype not avialble here

Is there any way to define ptrtype globally?

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Developer IT

typedef to store pointers in C - Developer IT

typedef to store pointers in C

c

pointers

typedef

Related posts about c

Related posts about pointers

C++ smart pointers: sharing pointers vs. sharing data

handling refrence to pointers/double pointers using SWIG [C++ to Java]

char pointers & integer pointers (++)

Smart pointers - cases where they cannot replace raw pointers

C++ Pointers: Number of levels of Indirection

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