[Assorted-commits] SF.net SVN: assorted: [748] cpp-commons/trunk/src/commons

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

Revision: 748
          http://assorted.svn.sourceforge.net/assorted/?rev=748&view=rev
Author:   yangzhang
Date:     2008-05-08 12:32:41 -0700 (Thu, 08 May 2008)

Log Message:
-----------
added closing RAII tool and die()

Added Paths:
-----------
    cpp-commons/trunk/src/commons/closing.h
    cpp-commons/trunk/src/commons/die.h

Added: cpp-commons/trunk/src/commons/closing.h
===================================================================
--- cpp-commons/trunk/src/commons/closing.h	                        (rev 0)
+++ cpp-commons/trunk/src/commons/closing.h	2008-05-08 19:32:41 UTC (rev 748)
@@ -0,0 +1,19 @@
+#ifndef COMMONS_CLOSING_H
+#define COMMONS_CLOSING_H
+
+namespace
+{
+
+  template<typename T>
+  class closing
+  {
+    public:
+      closing(T x) : x(x) {}
+      ~closing() { close(x); }
+    private:
+      T x;
+  };
+
+}
+
+#endif

Added: cpp-commons/trunk/src/commons/die.h
===================================================================
--- cpp-commons/trunk/src/commons/die.h	                        (rev 0)
+++ cpp-commons/trunk/src/commons/die.h	2008-05-08 19:32:41 UTC (rev 748)
@@ -0,0 +1,33 @@
+#ifndef COMMONS_DIE_H
+#define COMMONS_DIE_H
+
+#include <cerrno>
+#include <cstdio>
+#include <cstdarg>
+#include <cstring>
+#include <cstdlib>
+
+namespace commons {
+
+  /**
+   * Print an error message and exit.  Acts like perror() if \p format doesn't
+   * end with "\n".
+   *
+   * TODO: move into C Commons.
+   */
+  void
+  die(const char *format, ...)
+  {
+    const char *errstr;
+    va_list val;
+    va_start(val, format);
+    errstr = strerror(errno);
+    vfprintf(stderr, format, val);
+    if (strchr(format, '\n') == NULL)
+      fprintf(stderr, ": %s\n", errstr);
+    exit(1);
+  }
+
+}
+
+#endif


This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.