fixup! feat(core): allow measurement through codspeed core library

Author: GuillaumeLagrange

core/CMakeLists.txt

@@ -1,11 +1,8 @@
 cmake_minimum_required(VERSION 3.10)
 
-set(CODSPEED_VERSION 1.0)
+set(CODSPEED_VERSION 1.0.0)
 
-project(
-  codspeed
-  VERSION ${CODSPEED_VERSION}
-  LANGUAGES CXX)
+project(codspeed VERSION ${CODSPEED_VERSION} LANGUAGES CXX)
 
 # Specify the C++ standard
 set(CMAKE_CXX_STANDARD 17)
@@ -22,8 +19,8 @@ add_compile_definitions(CODSPEED_VERSION="${CODSPEED_VERSION}")
 
 # Disable valgrind compilation errors
 if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
-  # Disable the old-style-cast warning for the specific target
-  target_compile_options(codspeed PRIVATE -Wno-old-style-cast)
+    # Disable the old-style-cast warning for the specific target
+    target_compile_options(codspeed PRIVATE -Wno-old-style-cast)
 endif()
 
 # Specify the include directories for users of the library

core/src/codspeed.cpp

@@ -18,7 +18,7 @@ std::string join(const std::vector<std::string> &elements,
 
 CodSpeed::CodSpeed() : is_instrumented(measurement_is_instrumented()) {
   if (!is_instrumented) {
-    std::cout
+    std::cerr
         << "NOTICE: codspeed is enabled, but no performance measurement will "
            "be made since it's running in an unknown environment."
         << std::endl;
@@ -48,6 +48,6 @@ void CodSpeed::end_benchmark() {
   std::string action_str = is_instrumented ? "Measured" : "Checked";
   std::string group_str =
       group_stack.empty() ? "" : " (group: " + join(group_stack, "/") + ")";
-  std::cout << action_str << ": " << current_benchmark << group_str
+  std::cerr << action_str << ": " << current_benchmark << group_str
             << std::endl;
 }