__builtin_constant_p fails for Intel compilation?
__builtin_constant_p fails for Intel compilation?
- Subject: __builtin_constant_p fails for Intel compilation?
- From: Alexey Proskuryakov <email@hidden>
- Date: Thu, 12 Jan 2006 18:22:12 +0300
- Thread-topic: __builtin_constant_p fails for Intel compilation?
In our project, we've been using macros from Endian.h, but now it appears
that they don't quite work for Intel. Using "Carbon Application" stationery:
#include <Carbon/Carbon.h>
enum {
kMyConst1 = EndianU32_NtoB(0),
kMyConst0 = EndianU32_NtoB('1234')
};
/Users/ap/Desktop/Endian/main.cpp:5: error: 'uint32_t
_OSSwapInt32(uint32_t)' cannot appear in a constant-expression
/Users/ap/Desktop/Endian/main.cpp:5: error: a function call cannot appear in
a constant-expression
/Users/ap/Desktop/Endian/main.cpp:6: error: 'uint32_t
_OSSwapInt32(uint32_t)' cannot appear in a constant-expression
/Users/ap/Desktop/Endian/main.cpp:6: error: a function call cannot appear in
a constant-expression
Looking at the macro definitions, I suppose that it is
__builtin_constant_p that fails here. I'm using Xcode 2.2. Is it a bug, or
I'm just doing something wrong?
- WBR, Alexey Proskuryakov
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