[Assorted-commits] SF.net SVN: assorted: [620] cpp-commons/trunk/src/commons/check.h

[<yan...@us...>]

Revision: 620
          http://assorted.svn.sourceforge.net/assorted/?rev=620&view=rev
Author:   yangzhang
Date:     2008-03-12 13:41:21 -0700 (Wed, 12 Mar 2008)

Log Message:
-----------
added check0

Modified Paths:
--------------
    cpp-commons/trunk/src/commons/check.h

Modified: cpp-commons/trunk/src/commons/check.h
===================================================================
--- cpp-commons/trunk/src/commons/check.h	2008-03-10 23:54:07 UTC (rev 619)
+++ cpp-commons/trunk/src/commons/check.h	2008-03-12 20:41:21 UTC (rev 620)
@@ -10,7 +10,7 @@
 
   using namespace std;
 
-  class check_exception : exception
+  class check_exception : public exception
   {
   public:
     check_exception(const string & name) : name(name) {}
@@ -41,20 +41,28 @@
    * This is a macro for two reasons: (1) the file and line, and (2) the lazy
    * evaluation of msg.
    */
-#define checkmsg(cond, msg) \
-    bool b__ = cond; \
+#define checkmsg(cond, msg)                                                    \
+    bool b__ = cond;                                                           \
     if (!b__) _check(b__, (msg), __FILE__, __LINE__)
 
 // TODO: half-written
-#define checkmsgf(cond, msg, ...) \
-  do { \
-    bool b__ = cond; \
-    if (!b__) { \
-      char s__[4096]; \
-      snprintf(s, ); \
-      _check(b__, s__, __FILE__, __LINE__); \
-    } \
+#define checkmsgf(cond, msg, ...)                                              \
+  do {                                                                         \
+    bool b__ = cond;                                                           \
+    if (!b__) {                                                                \
+      char s__[4096];                                                          \
+      snprintf(s, );                                                           \
+      _check(b__, s__, __FILE__, __LINE__);                                    \
+    }                                                                          \
   } while (0)
 
+#define check0(expr)                                                           \
+  do {                                                                         \
+    typeof(expr) r__ = expr;                                                   \
+    if (r__ != 0) {                                                                \
+      return r__;                                                              \
+    }                                                                          \
+  } while (0)
+
 #endif
 


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