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authorTavian Barnes <tavianator@gmail.com>2011-11-16 17:01:02 -0500
committerTavian Barnes <tavianator@gmail.com>2011-11-16 17:01:53 -0500
commit78dca8153f802f271b4f2aeca33d967a075e485e (patch)
treecaf18232cb7d5256efaa853373644e810e1af014 /libdimension/dimension/compiler.h
parentb8cfc42881e7045a6c93fcd5b64b14cefa8d6c5c (diff)
downloaddimension-78dca8153f802f271b4f2aeca33d967a075e485e.tar.xz
Add a dmnsn_unreachable() macro.
Also rename inline.h to compiler.h.
Diffstat (limited to 'libdimension/dimension/compiler.h')
-rw-r--r--libdimension/dimension/compiler.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/libdimension/dimension/compiler.h b/libdimension/dimension/compiler.h
new file mode 100644
index 0000000..5ce8ce8
--- /dev/null
+++ b/libdimension/dimension/compiler.h
@@ -0,0 +1,52 @@
+/*************************************************************************
+ * Copyright (C) 2009-2010 Tavian Barnes <tavianator@tavianator.com> *
+ * *
+ * This file is part of The Dimension Library. *
+ * *
+ * The Dimension Library is free software; you can redistribute it and/ *
+ * or modify it under the terms of the GNU Lesser General Public License *
+ * as published by the Free Software Foundation; either version 3 of the *
+ * License, or (at your option) any later version. *
+ * *
+ * The Dimension Library is distributed in the hope that it will be *
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty *
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
+ * Lesser General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU Lesser General Public *
+ * License along with this program. If not, see *
+ * <http://www.gnu.org/licenses/>. *
+ *************************************************************************/
+
+/**
+ * @file
+ * Compiler abstractions.
+ */
+
+/**
+ * @def DMNSN_INLINE
+ * A portable inline specifier. Expands to the correct method of declaring
+ * inline functions for the version of C you are using.
+ */
+#ifndef DMNSN_INLINE
+ #ifdef __cplusplus
+ /* C++ inline semantics */
+ #define DMNSN_INLINE inline
+ #elif __STDC_VERSION__ >= 199901L
+ /* C99 inline semantics */
+ #define DMNSN_INLINE inline
+ #elif defined(__GNUC__)
+ /* GCC inline semantics */
+ #define DMNSN_INLINE __extension__ extern __inline__
+ #else
+ /* Unknown C - mark functions static and hope the compiler is smart enough
+ to inline them */
+ #define DMNSN_INLINE static
+ #endif
+#endif
+
+#ifdef __GNUC__
+ #define DMNSN_UNREACHABLE() __builtin_unreachable();
+#else
+ #define DMNSN_UNREACHABLE()
+#endif