_Pragma("GCC diagnostic push"); \
_Pragma("GCC diagnostic ignored \"-Wnonnull\"")
+#define DISABLE_WARNING_SHADOW \
+ _Pragma("GCC diagnostic push"); \
+ _Pragma("GCC diagnostic ignored \"-Wshadow\"")
+
#define REENABLE_WARNING \
_Pragma("GCC diagnostic pop")
})
#undef MAX
-#define MAX(a,b) \
- __extension__ ({ \
- typeof(a) _a = (a); \
- typeof(b) _b = (b); \
- _a > _b ? _a : _b; \
+#define MAX(a,b) \
+ __extension__ ({ \
+ const typeof(a) _a = (a); \
+ const typeof(b) _b = (b); \
+ _a > _b ? _a : _b; \
})
-#define MAX3(x,y,z) \
- __extension__ ({ \
- typeof(x) _c = MAX(x,y); \
- MAX(_c, z); \
+/* evaluates to (void) if _A or _B are not constant or of different types */
+#define CONST_MAX(_A, _B) \
+ __extension__ (__builtin_choose_expr( \
+ __builtin_constant_p(_A) && \
+ __builtin_constant_p(_B) && \
+ __builtin_types_compatible_p(typeof(_A), typeof(_B)), \
+ ((_A) > (_B)) ? (_A) : (_B), \
+ (void)0))
+
+#define MAX3(x,y,z) \
+ __extension__ ({ \
+ const typeof(x) _c = MAX(x,y); \
+ MAX(_c, z); \
})
#undef MIN
-#define MIN(a,b) \
- __extension__ ({ \
- typeof(a) _a = (a); \
- typeof(b) _b = (b); \
- _a < _b ? _a : _b; \
+#define MIN(a,b) \
+ __extension__ ({ \
+ const typeof(a) _a = (a); \
+ const typeof(b) _b = (b); \
+ _a < _b ? _a : _b; \
})
-#define LESS_BY(A,B) \
- __extension__ ({ \
- typeof(A) _A = (A); \
- typeof(B) _B = (B); \
- _A > _B ? _A - _B : 0; \
+#define MIN3(x,y,z) \
+ __extension__ ({ \
+ const typeof(x) _c = MIN(x,y); \
+ MIN(_c, z); \
+ })
+
+#define LESS_BY(A,B) \
+ __extension__ ({ \
+ const typeof(A) _A = (A); \
+ const typeof(B) _B = (B); \
+ _A > _B ? _A - _B : 0; \
})
#ifndef CLAMP
#define CLAMP(x, low, high) \
__extension__ ({ \
- typeof(x) _x = (x); \
- typeof(low) _low = (low); \
- typeof(high) _high = (high); \
+ const typeof(x) _x = (x); \
+ const typeof(low) _low = (low); \
+ const typeof(high) _high = (high); \
((_x > _high) ? _high : ((_x < _low) ? _low : _x)); \
})
#endif
#define PTR_TO_UINT64(p) ((uint64_t) ((uintptr_t) (p)))
#define UINT64_TO_PTR(u) ((void *) ((uintptr_t) (u)))
+#define PTR_TO_SIZE(p) ((size_t) ((uintptr_t) (p)))
+#define SIZE_TO_PTR(u) ((void *) ((uintptr_t) (u)))
+
#define memzero(x,l) (memset((x), 0, (l)))
#define zero(x) (memzero(&(x), sizeof(x)))