again fixing compiler warnings (this time: unused functions)

by inlining functions, compilers will not warn about not using them

Author: torbjoernk

include/pfasst.hpp

@@ -9,7 +9,7 @@
 
 namespace pfasst
 {
-  static void init(int argc, char** argv)
+  inline static void init(int argc, char** argv)
   {
     SDC<>::enable_config_options(0);
     Quadrature::enable_config_options(0);

include/pfasst/config.hpp

@@ -102,27 +102,27 @@ namespace pfasst
 
 
     template<typename T>
-    static T get_value(const string& name, const T& default_val)
+    inline static T get_value(const string& name, const T& default_val)
     {
       return Options::get_instance().get_variables_map().count(name) 
               ? Options::get_instance().get_variables_map()[name].as<T>() : default_val;
     }
 
 
     template<typename T>
-    static T get_value(const string& name)
+    inline static T get_value(const string& name)
     {
       return Options::get_instance().get_variables_map()[name].as<T>();
     }
 
 
-    static bool no_params_given()
+    inline static bool no_params_given()
     {
       return Options::get_instance().get_variables_map().empty();
     }
 
 
-    static string pretty_print()
+    inline static string pretty_print()
     {
       stringstream s;
       s << "Logging Options:" << endl
@@ -140,7 +140,7 @@ namespace pfasst
     /**
      * @returns empty string if params are set and `if_no_params` is `true`
      */
-    static string print_help(bool if_no_params = false)
+    inline static string print_help(bool if_no_params = false)
     {
       if (!if_no_params || (if_no_params && no_params_given())) {
         return pretty_print();
@@ -150,14 +150,14 @@ namespace pfasst
     }
 
 
-    static void init_global_options(po::options_description& opts)
+    inline static void init_global_options(po::options_description& opts)
     {
       opts.add_options()
         ("help,h", "display this help message");
     }
 
 
-    static void init_config()
+    inline static void init_config()
     {
       Options::get_instance()
         .register_init_function("Global Options",
@@ -168,7 +168,7 @@ namespace pfasst
     }
 
 
-    static void read_commandline(int argc, char* argv[], bool exit_on_help = true)
+    inline static void read_commandline(int argc, char* argv[], bool exit_on_help = true)
     {
       po::parsed_options parsed = po::command_line_parser(argc, argv)
                                     .options(Options::get_instance().get_all_options())
@@ -188,7 +188,7 @@ namespace pfasst
     /**
      * @throws invalid_argument if the given file could not be opened
      */
-    static void read_config_file(string file_name)
+    inline static void read_config_file(string file_name)
     {
       ifstream ifs(file_name.c_str(), ios_base::in);
       if (!ifs) {

include/pfasst/logging.hpp

@@ -86,7 +86,7 @@ namespace pfasst
     /**
      * sets default configuration for default loggers
      */
-    static void load_default_config()
+    inline static void load_default_config()
     {
       const string TIMESTAMP = OUT::white + "%datetime{%H:%m:%s,%g}" + OUT::reset + " ";
       const string LEVEL = "[%level]";
@@ -137,7 +137,7 @@ namespace pfasst
      *
      * \see https://github.com/easylogging/easyloggingpp#logging-flags
      */
-    static void set_logging_flags()
+    inline static void set_logging_flags()
     {
       el::Loggers::addFlag(el::LoggingFlag::NewLineForContainer);
       el::Loggers::addFlag(el::LoggingFlag::LogDetailedCrashReason);
@@ -149,9 +149,9 @@ namespace pfasst
     }
 
 #ifdef NDEBUG
-    static void test_logging_levels() {}
+    inline static void test_logging_levels() {}
 #else
-    static void test_logging_levels()
+    inline static void test_logging_levels()
     {
       cout << "### Example of different Logging Levels:" << endl;
       LOG(INFO) << "info";
@@ -176,7 +176,7 @@ namespace pfasst
      * \param[in] argc number of command line arguments
      * \param[in] argv command line arguments
      */
-    static void start_log(int argc, char** argv)
+    inline static void start_log(int argc, char** argv)
     {
       _START_EASYLOGGINGPP(argc, argv);
       set_logging_flags();

include/pfasst/quadrature.hpp

@@ -111,7 +111,7 @@ namespace pfasst
     // note: GCC fails with "error: explicit template specialization cannot have a storage class"
     //       if this template specialization is also declared 'static'; Clang does not care.
     template<>
-    pfasst::quadrature::QuadratureType get_value(const string& name)
+    inline pfasst::quadrature::QuadratureType get_value(const string& name)
     {
       const string type = Options::get_instance().get_variables_map()[name].as<string>();
       if (type == "gauss-lobatto") {
@@ -132,8 +132,8 @@ namespace pfasst
     // note: GCC fails with "error: explicit template specialization cannot have a storage class"
     //       if this template specialization is also declared 'static'; Clang does not care.
     template<>
-    pfasst::quadrature::QuadratureType get_value(const string& name,
-                                                 const pfasst::quadrature::QuadratureType& default_value)
+    inline pfasst::quadrature::QuadratureType get_value(const string& name,
+                                                        const pfasst::quadrature::QuadratureType& default_value)
     {
       if (Options::get_instance().get_variables_map().count(name) == 1) {
         return pfasst::config::get_value<pfasst::quadrature::QuadratureType>(name);