X-Git-Url: https://pd.if.org/git/?p=pdclib;a=blobdiff_plain;f=includes%2Fassert.h;h=a1af59f6aa2eed19e5dd4cce546db0109f8ad85e;hp=ca0022d9d03401e489f480c96c6d887e158c6d81;hb=da0f3f353d417fed71f358a48d5d5394145e460d;hpb=1cc4363093c919f79eafac209bb5c41548d3f88f

diff --git a/includes/assert.h b/includes/assert.h
index ca0022d..a1af59f 100644
--- a/includes/assert.h
+++ b/includes/assert.h
@@ -1,21 +1,49 @@
-/* $Id$ */
-
-/* 7.2 Diagnostics <assert.h>
+/* Diagnostics <assert.h>
 
    This file is part of the Public Domain C Library (PDCLib).
    Permission is granted to use, modify, and / or redistribute at will.
 */
 
+#include "_PDCLIB_aux.h"
+#include "_PDCLIB_config.h"
+
+/*
+   Defines a macro assert() that, depending on the value of the preprocessor
+   symbol NDEBUG, does
+   * evaluate to a void expression if NDEBUG is set OR the parameter expression
+     evaluates to true;
+   * print an error message and terminates the program if NDEBUG is not set AND
+     the parameter expression evaluates to false.
+   The error message contains the parameter expression, name of the source file
+  (__FILE__), line number (__LINE__), and (from C99 onward) name of the function
+  (__func__).
+    The header can be included MULTIPLE times, and redefines the macro depending
+   on the current setting of NDEBUG.
+*/
+
 #ifndef _PDCLIB_ASSERT_H
 #define _PDCLIB_ASSERT_H _PDCLIB_ASSERT_H
-#include <_PDCLIB_aux.h>
-#include <_PDCLIB_config.h>
-_PDCLIB_BEGIN_EXTERN_C
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 /* Functions _NOT_ tagged noreturn as this hampers debugging */
 void _PDCLIB_assert99( char const * const, char const * const, char const * const );
 void _PDCLIB_assert89( char const * const );
 
+#ifdef __cplusplus
+}
+#endif
+
+#if _PDCLIB_C_VERSION >= 2011
+#define static_assert _Static_assert
+#else
+#define static_assert( e, m )
+#endif
+
+#endif
+
 /* If NDEBUG is set, assert() is a null operation. */
 #undef assert
 
@@ -29,8 +57,10 @@ void _PDCLIB_assert89( char const * const );
                          ", file " __FILE__ \
                          ", line " _PDCLIB_symbol2string( __LINE__ ) \
                          "." _PDCLIB_endl ); \
+        _PDCLIB_UNREACHABLE; \
       } \
     } while(0)
+
 #else
 #define assert(expression) \
     do { if(!(expression)) { \
@@ -38,10 +68,7 @@ void _PDCLIB_assert89( char const * const );
                          ", file " __FILE__ \
                          ", line " _PDCLIB_symbol2string( __LINE__ ) \
                          "." _PDCLIB_endl ); \
+        _PDCLIB_UNREACHABLE; \
       } \
     } while(0)
 #endif
-
-_PDCLIB_END_EXTERN_C
-#endif
-