Replacing atoi by boost::spirit::qi

Util/InputFileUtil.h

@@ -26,7 +26,7 @@ or see http://www.gnu.org/licenses/agpl.txt.
 #include "../typedefs.h"
 
 // Check if file exists and if it can be opened for reading with ifstream an object
-inline bool testDataFile(const char *filename){
+inline bool testDataFile(const std::string & filename){
     boost::filesystem::path fileToTest(filename);
 	if(!boost::filesystem::exists(fileToTest))       {
 		WARN("Failed to open file " << filename << " for reading.");

Util/StringUtil.h

@@ -27,8 +27,10 @@ or see http://www.gnu.org/licenses/agpl.txt.
 #include <sstream>
 
 #include <boost/spirit/include/karma.hpp>
+#include <boost/spirit/include/qi.hpp>
 
 #include "../DataStructures/Coordinate.h"
+#include "../typedefs.h"
 
 // precision:  position after decimal point
 // length: maximum number of digits including comma and decimals
@@ -68,6 +70,16 @@ static inline void intToString(const int value, std::string & output) {
     boost::spirit::karma::generate(sink, boost::spirit::karma::int_, value);
 }
 
+static inline int stringToInt(const std::string& input) {
+    std::string::const_iterator realBeginOfNumber = input.begin();
+    //Delete any trailing white-spaces
+    while(realBeginOfNumber != input.end() && std::isspace(*realBeginOfNumber))
+        ++realBeginOfNumber;
+    int value = 0; // 2
+    boost::spirit::qi::parse(realBeginOfNumber, input.end(), boost::spirit::int_, value); // 3
+    return value;
+}
+
 static inline void convertInternalLatLonToString(const int value, std::string & output) {
     char buffer[100];
     buffer[10] = 0; // Nullterminierung