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-rw-r--r--ruby_assert.h60
1 files changed, 60 insertions, 0 deletions
diff --git a/ruby_assert.h b/ruby_assert.h
new file mode 100644
index 0000000000..185d2e5f5f
--- /dev/null
+++ b/ruby_assert.h
@@ -0,0 +1,60 @@
+#ifndef RUBY_ASSERT_H
+#define RUBY_ASSERT_H
+
+#include "ruby/ruby.h"
+
+#if defined(__cplusplus)
+extern "C" {
+#if 0
+} /* satisfy cc-mode */
+#endif
+#endif
+
+NORETURN(void rb_assert_failure(const char *, int, const char *, const char *));
+#ifdef RUBY_FUNCTION_NAME_STRING
+# define RUBY_ASSERT_FAIL(expr) \
+ rb_assert_failure(__FILE__, __LINE__, RUBY_FUNCTION_NAME_STRING, expr)
+#else
+# define RUBY_ASSERT_FAIL(expr) \
+ rb_assert_failure(__FILE__, __LINE__, NULL, expr)
+#endif
+#define RUBY_ASSERT_MESG(expr, mesg) \
+ ((expr) ? (void)0 : RUBY_ASSERT_FAIL(mesg))
+#ifdef HAVE_BUILTIN___BUILTIN_CHOOSE_EXPR_CONSTANT_P
+# define RUBY_ASSERT_MESG_WHEN(cond, expr, mesg) \
+ __builtin_choose_expr( \
+ __builtin_constant_p(cond), \
+ __builtin_choose_expr(cond, RUBY_ASSERT_MESG(expr, mesg), (void)0), \
+ RUBY_ASSERT_MESG(!(cond) || (expr), mesg))
+#else
+# define RUBY_ASSERT_MESG_WHEN(cond, expr, mesg) \
+ RUBY_ASSERT_MESG(!(cond) || (expr), mesg)
+#endif
+#define RUBY_ASSERT(expr) RUBY_ASSERT_MESG_WHEN(!RUBY_NDEBUG+0, expr, #expr)
+#define RUBY_ASSERT_WHEN(cond, expr) RUBY_ASSERT_MESG_WHEN(cond, expr, #expr)
+
+#if !defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L)
+/* C89 compilers are required to support strings of only 509 chars. */
+/* can't use RUBY_ASSERT for such compilers. */
+#include <assert.h>
+#else
+#undef assert
+#define assert RUBY_ASSERT
+#endif
+
+#ifndef RUBY_NDEBUG
+# ifdef NDEBUG
+# define RUBY_NDEBUG 1
+# else
+# define RUBY_NDEBUG 0
+# endif
+#endif
+
+#if defined(__cplusplus)
+#if 0
+{ /* satisfy cc-mode */
+#endif
+} /* extern "C" { */
+#endif
+
+#endif