Added Debug class for more convenient debugging output

Inspired by the QDebug class and qDebug() function from Qt. Actually it
might be nice if the LOG macro would also use this.

1 files changed, 34 insertions, 0 deletions

diff --git a/src/utils/logger.h b/src/utils/logger.h
index 65846be5..c9ca9d80 100644
--- a/src/utils/logger.h
+++ b/src/utils/logger.h
@@ -24,6 +24,7 @@
 
 #include <iosfwd>
 #include <sstream>
+#include <iostream>
 
 namespace utils
 {
@@ -192,6 +193,32 @@ class Logger
         static void switchLogs();
 };
 
+/**
+ * Class for temporarily debugging things that are actually not interesting
+ * to include in the log.
+ *
+ * It is used for automatically ending with a newline, putting spaces in
+ * between different parameters and quoting strings.
+ */
+class Debug
+{
+public:
+    ~Debug() { std::cout << std::endl; }
+
+    template <class T>
+    Debug &operator << (T t)
+    {
+        std::cout << t << " ";
+        return *this;
+    }
+};
+
+template <>
+inline Debug &Debug::operator << (const std::string &t)
+{
+    std::cout << "\"" << t << "\" ";
+    return *this;
+}
 
 } // namespace utils
 
@@ -210,4 +237,11 @@ class Logger
 #define LOG_ERROR(msg)  LOG(Error, msg)
 #define LOG_FATAL(msg)  LOG(Fatal, msg)
 
+/**
+ * Returns an instance of the debug class for printing out a line.
+ *
+ * Usage: debug() << "testing" << a << b;
+ */
+inline ::utils::Debug debug() { return ::utils::Debug(); }
+
 #endif // LOGGER_H