1 files changed, 49 insertions, 0 deletions
diff --git a/src/utils/assert.h b/src/utils/assert.h
new file mode 100644
index 000000000..d84f5c7ad
--- /dev/null
+++ b/src/utils/assert.h
@@ -0,0 +1,49 @@
+/*
+* Runtime assertion checking
+* (C) 2010 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_ASSERTION_CHECKING_H__
+#define BOTAN_ASSERTION_CHECKING_H__
+
+namespace Botan {
+
+void assertion_failure(const char* expr_str,
+                       const char* msg,
+                       const char* func,
+                       const char* file,
+                       int line);
+
+#define BOTAN_ASSERT(expr, msg)                          \
+   do {                                                  \
+      if(!(expr))                                        \
+         Botan::assertion_failure(#expr,                 \
+                                  msg,                   \
+                                  BOTAN_ASSERT_FUNCTION, \
+                                  __FILE__,              \
+                                  __LINE__);             \
+   } while(0)
+
+/*
+* Unfortunately getting the function name from the preprocessor
+* isn't standard in C++98 (C++0x uses C99's __func__)
+*/
+#if defined(BOTAN_BUILD_COMPILER_IS_GCC) || \
+    defined(BOTAN_BUILD_COMPILER_IS_CLANG) || \
+    defined(BOTAN_BUILD_COMPILER_IS_INTEL)
+
+  #define BOTAN_ASSERT_FUNCTION __PRETTY_FUNCTION__
+
+#elif defined(BOTAN_BUILD_COMPILER_IS_MSVC)
+
+  #define BOTAN_ASSERT_FUNCTION __FUNCTION__
+
+#else
+  #define BOTAN_ASSERT_FUNCTION ((const char*)0)
+#endif
+
+}
+
+#endif