#include <assert.h>
#include <ctype.h>
-#if defined(__alpha__) && defined(CCPML)
-#include <cpml.h> /* use Compaq's Fast Math Library on Alpha */
-#else
#include <math.h>
-#endif
#include <limits.h>
#include <stdlib.h>
#include <stdio.h>
(void) sizeof(char [1 - 2*!(COND)]); \
} while (0)
+/**
+ * Unreachable macro. Useful for suppressing "control reaches end of non-void
+ * function" warnings.
+ */
+#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 5
+#define unreachable() __builtin_unreachable()
+#elif (defined(__clang__) && defined(__has_builtin))
+# if __has_builtin(__builtin_unreachable)
+# define unreachable() __builtin_unreachable()
+# endif
+#endif
+
+#ifndef unreachable
+#define unreachable()
+#endif
#if (__GNUC__ >= 3)
#define PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a)))
defined(ia64) || defined(__ia64__) || \
defined(__hppa__) || defined(hpux) || \
defined(__mips) || defined(_MIPS_ARCH) || \
- defined(__arm__) || \
+ defined(__arm__) || defined(__aarch64__) || \
defined(__sh__) || defined(__m32r__) || \
(defined(__sun) && defined(_IEEE_754)) || \
defined(__alpha__)