- added lexical_cast tool

1 files changed, 19 insertions, 0 deletions

diff --git a/tools.h b/tools.h
index 3b195dd..0c98fed 100644
--- a/tools.h
+++ b/tools.h
@@ -2,6 +2,8 @@
 #define VDR_LIVE_TOOLS_H
 
 #include <ctime>
+#include <sstream>
+#include <stdexcept>
 #include <string>
 #include <vector>
 #include <vdr/thread.h>
@@ -12,6 +14,23 @@ std::string FormatDateTime( char const* format, time_t time );
 std::string StringReplace( std::string const& text, std::string const& substring, std::string const& replacement );
 std::vector< std::string > StringSplit( std::string const& text, char delimiter );
 
+struct bad_lexical_cast: std::runtime_error 
+{
+	bad_lexical_cast(): std::runtime_error( "bad lexical cast" ) {}
+};
+
+template< typename To, typename From >
+To lexical_cast( From const& from )
+{
+	std::stringstream parser;
+	parser << from;
+	To result;
+	parser >> result;
+	if ( !parser )
+		throw bad_lexical_cast();
+	return result;
+}
+
 class ReadLock
 {
 public: