diff options
Diffstat (limited to 'tools/include/linux/compiler.h')
| -rw-r--r-- | tools/include/linux/compiler.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h index 1684216e826a..7b65566f3e42 100644 --- a/tools/include/linux/compiler.h +++ b/tools/include/linux/compiler.h @@ -63,6 +63,14 @@ # define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b)) #endif +/* + * This returns a constant expression while determining if an argument is + * a constant expression, most importantly without evaluating the argument. + * Glory to Martin Uecker <Martin.Uecker@med.uni-goettingen.de> + */ +#define __is_constexpr(x) \ + (sizeof(int) == sizeof(*(8 ? ((void *)((long)(x) * 0l)) : (int *)8))) + #ifdef __ANDROID__ /* * FIXME: Big hammer to get rid of tons of: |