修改 program_options

Makefile

@@ -1,7 +1,7 @@
 include Makefile.common
 
 # TEST_APP = test_emplace
-TEST_APP = test_json
+TEST_APP = csar
 
 .PHONY: all build-static build-shared check clean distclean test
 all: build-static check test
@@ -15,7 +15,6 @@ check: build-static
 	$(MAKE) -C test
 
 test:
-	./build/$(TEST_APP).exe
 
 clean:
 	$(MAKE) -C src clean

Makefile.common

@@ -17,7 +17,8 @@ BUILD_DIR := ../build
 RESULT_DIR := $(BUILD_DIR)/
 CACHE_DIR := $(BUILD_DIR)/cache
 
-EXEFLAGS := -m64
+EXEFLAGS := $(LDFLAGS)
+EXEFLAGS += -m64
 
 
 $(CACHE_DIR)/%.o : %.cpp

src/csar.cpp

@@ -1,17 +1,37 @@
 #include <iostream>
 #include <exception>
-#include <boost/program_options/cmdline.hpp>
-#include <boost/program_options/options_description.hpp>
+#include <boost/program_options.hpp>
 
 struct NotImplementedError: public std::exception
 {
 };
 
+namespace po = boost::program_options;
 
 int main(int argc, char const *argv[])
 {
-	using options_description = boost::program_options::options_description;
-	options_description desc("Allowed options:");
-	std::cout << "Hello world!" << std::endl;
+	po::options_description desc("Arguments: ");
+	desc.add_options()
+		("help", "produce help messages")
+		("input-file", po::value< std::string >(), "input file path")
+		("output", po::value< std::string >(), "output file path")
+		;
+	po::positional_options_description p;
+	p.add("input-file", -1);
+
+	po::variables_map vm;
+	po::store(po::command_line_parser(argc, argv).
+		options(desc).positional(p).run(), vm);
+	po::notify(vm);
+
+	if (vm.count("help")) {
+		std::cout << "Usage: options_description [options]\n";
+		std::cout << desc << std::endl;
+		return 0;
+	}
+	if (vm.count("output"))
+	{
+	 	// std::cout << desc["output"].as<std::string>() << std::endl;
+	} 
 	return 0;
 }

test/Makefile

@@ -5,12 +5,13 @@ OBJECTS :=
 
 EXEUTABLES := $(foreach f,$(SOURCES:.cpp=.exe),$(BUILD_DIR)/$(f))
 
-.PHONY: all build clean 
+.PHONY: all build clean test
 all:  build
 build: $(EXEUTABLES)
+test: build
 
 $(BUILD_DIR)/%.exe: %.o $(OBJECTS)
-	$(CXX) $(CXXFLAGS) -o $@ $^
+	$(CXX) $(CXXFLAGS) $(EXEFLAGS) -o $@ $^
 
 clean: 
 	$(RM) $(EXEUTABLES)