warn_any_ptr_int

Controls if the compiler generates a warning message when an integral type is explicitly converted to a pointer type or vice versa.

Syntax

#pragma warn_any_ptr_int_conv on | off | reset

Remarks

This pragma is useful to identify potential 64-bit pointer portability issues. An example is shown in.

Listing 1. Example of warn_any_ptr_int_conv

#pragma warn_ptr_int_conv on

short i, *ip

void func() {
   i = (short)ip;
   /* WARNING: short type is not large enough to hold pointer. */
}

#pragma warn_any_ptr_int_conv on

void bar() {
   i  = (int)ip; /* WARNING: pointer to integral conversion. */
   ip = (short *)i; /* WARNING: integral to pointer conversion. */
}

Remarks

By default, this pragma is off .