initial commit

1 files changed, 76 insertions, 0 deletions

diff --git a/macro.h b/macro.h
new file mode 100644
index 0000000000..267da83a0f
--- /dev/null
+++ b/macro.h
@@ -0,0 +1,76 @@
+/*-*- Mode: C; c-basic-offset: 8 -*-*/
+
+#ifndef foomacrohfoo
+#define foomacrohfoo
+
+#include <assert.h>
+#include <sys/types.h>
+
+#define __printf_attr(a,b) __attribute__ ((format (printf, a, b)))
+#define __sentinel __attribute__ ((sentinel))
+#define __noreturn __attribute__((noreturn))
+#define __unused __attribute__ ((unused))
+#define __destructor __attribute__ ((destructor))
+#define __pure __attribute__ ((pure))
+#define __const __attribute__ ((const))
+#define __deprecated __attribute__ ((deprecated))
+#define __packed __attribute__ ((packed))
+#define __malloc __attribute__ ((malloc))
+
+/* Rounds up */
+static inline size_t ALIGN(size_t l) {
+        return ((l + sizeof(void*) - 1) & ~(sizeof(void*) - 1));
+}
+
+#define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
+
+#define MAX(a,b)                                \
+        __extension__ ({                        \
+                        typeof(a) _a = (a);     \
+                        typeof(b) _b = (b);     \
+                        _a > _b ? _a : _b;      \
+                })
+
+#define MIN(a,b)                                \
+        __extension__ ({                        \
+                        typeof(a) _a = (a);     \
+                        typeof(b) _b = (b);     \
+                        _a < _b ? _a : _b;      \
+                })
+
+#define CLAMP(x, low, high)                                             \
+        __extension__ ({                                                \
+                        typeof(x) _x = (x);                             \
+                        typeof(low) _low = (low);                       \
+                        typeof(high) _high = (high);                    \
+                        ((_x > _high) ? _high : ((_x < _low) ? _low : _x)); \
+                })
+
+
+
+#define assert_not_reached(t) assert(!(t))
+
+#define assert_se(x) assert(x)
+
+#define assert_cc(expr)                            \
+        do {                                       \
+                switch (0) {                       \
+                        case 0:                    \
+                        case !!(expr):             \
+                                ;                  \
+                }                                  \
+        } while (false)
+
+#define PTR_TO_UINT(p) ((unsigned int) ((uintptr_t) (p)))
+#define UINT_TO_PTR(u) ((void*) ((uintptr_t) (u)))
+
+#define PTR_TO_UINT32(p) ((uint32_t) ((uintptr_t) (p)))
+#define UINT32_TO_PTR(u) ((void*) ((uintptr_t) (u)))
+
+#define PTR_TO_INT(p) ((int) ((intptr_t) (p)))
+#define INT_TO_PTR(u) ((void*) ((intptr_t) (u)))
+
+#define TO_INT32(p) ((int32_t) ((intptr_t) (p)))
+#define INT32_TO_PTR(u) ((void*) ((intptr_t) (u)))
+
+#endif