Add operator= and fix some bugs

Author: biaks

CMakeLists.txt

@@ -1,14 +1,11 @@
-
 project(prometheus-cpp-lite)
 cmake_minimum_required(VERSION 3.2)
 
 option(PROMETHEUS_BUILD_EXAMPLES "Build with examples" OFF)
 
-if(WIN32)
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_SOURCE_DIR}/bin)
 
-  # This properties specifies the directories into which targets files should be built
-  set(EXECUTABLE_OUTPUT_PATH         ${PROJECT_SOURCE_DIR}/bin) # Set old executable location variable
-  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_SOURCE_DIR}/bin) # Set new executable location variable. Then it can be read from RUNTIME_OUTPUT_DIRECTORY variable.
+if(WIN32) 
 
   # it prevent create Debug/ and Release folders in Visual Studio
   foreach( OUTPUTCONFIG ${CMAKE_CONFIGURATION_TYPES} )
@@ -22,10 +19,6 @@ else() # not WIN32
 
   set (INSTALL_PATH_BIN "bin/")
 
-  set(CMAKE_CXX_FLAGS         "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Werror")
-  set(CMAKE_CXX_FLAGS_DEBUG   "${CMAKE_CXX_FLAGS_DEBUG} -O0 -ggdb3")
-  set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2")
-
 endif()
 
 add_subdirectory("./core")

core/CMakeLists.txt

@@ -1,9 +1,10 @@
-
 project(prometheus-cpp-lite-core)
 cmake_minimum_required(VERSION 3.2)
 
 file(GLOB_RECURSE PROMETHEUS_CPP_LITE_HEADERS *.h)
 
+# it is header only target
+
 add_library               (${PROJECT_NAME}     INTERFACE)
 target_sources            (${PROJECT_NAME}     INTERFACE ${PROMETHEUS_CPP_LITE_HEADERS})
 target_include_directories(${PROJECT_NAME}     INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/include)
@@ -12,6 +13,7 @@ target_link_libraries     (${PROJECT_NAME}     INTERFACE http-client-lite)
 
 set                       (${PROJECT_NAME}_INCLUDE ${CMAKE_CURRENT_SOURCE_DIR}/include PARENT_SCOPE)
 
+# it need for save_to_file_t
 if(NOT WIN32)
   find_package(Threads)
   target_link_libraries(${PROJECT_NAME} INTERFACE ${CMAKE_THREAD_LIBS_INIT})

examples/simpleapi_example.cpp

@@ -21,6 +21,6 @@ int main() {
     if (random_value & 8) metric4++;
   }
 
-  return 0;
+  //return 0;
 
 }

simpleapi/CMakeLists.txt

@@ -1,4 +1,3 @@
-
 project(prometheus-cpp-simpleapi)
 cmake_minimum_required(VERSION 3.2)
 

simpleapi/include/prometheus/simpleapi.h

@@ -109,6 +109,7 @@ namespace prometheus {
       void operator-- ()                           { metric_->Decrement();    }
       void operator-- (int)                        { metric_->Decrement();    }
       void operator-= (typename Metric::Value val) { metric_->Decrement(val); }
+      void operator=  (typename Metric::Value val) { metric_->Set(val);       }
 
       int64_t value() const { return metric_->Get(); }