Initial import

libc/macros.h

@@ -0,0 +1,42 @@
+#ifndef COSMOPOLITAN_LIBC_MACROS_H_
+#define COSMOPOLITAN_LIBC_MACROS_H_
+#if 0
+/*───────────────────────────────────────────────────────────────────────────│─╗
+│ cosmopolitan § macros                                                    ─╬─│┼
+╚────────────────────────────────────────────────────────────────────────────│*/
+#endif
+
+/**
+ * @fileoverview Common C preprocessor, assembler, and linker macros.
+ *
+ * @see libc/bits/safemacros.h which it's really complicated
+ */
+
+#define TRUE  1
+#define FALSE 0
+
+#define ROUNDUP(X, K)       (((X) + ((K)-1)) & ~((K)-1))
+#define ROUNDDOWN(X, K)     ((X) & -(K))
+#define ABS(X)              ((X) >= 0 ? (X) : -(X))
+#define MIN(X, Y)           ((Y) > (X) ? (X) : (Y))
+#define MAX(X, Y)           ((Y) < (X) ? (X) : (Y))
+#define MOD(X, Y)           ((X) - (ABS(Y)) * ((X) / ABS(Y)))
+#define PASTE(A, B)         __PASTE(A, B)
+#define STRINGIFY(A)        __STRINGIFY(A)
+#define EQUIVALENT(X, Y)    (isconstant((X) == (Y)) && ((X) == (Y)))
+#define TYPE_BIT(type)      (sizeof(type) * CHAR_BIT)
+#define TYPE_SIGNED(type)   (((type)-1) < 0)
+#define TYPE_INTEGRAL(type) (((type)0.5) != 0.5)
+#define INT_STRLEN_MAXIMUM(type) \
+  ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))
+
+#define ARRAYLEN(A) \
+  ((sizeof(A) / sizeof(*(A))) / ((unsigned)!(sizeof(A) % sizeof(*(A)))))
+
+#define __STRINGIFY(A) #A
+#define __PASTE(A, B)  A##B
+#ifdef __ASSEMBLER__
+#include "libc/macros-cpp.inc"
+#include "libc/macros.inc"
+#endif /* __ASSEMBLER__ */
+#endif /* COSMOPOLITAN_LIBC_MACROS_H_ */