cmake 内存泄露检查

在CMakeLists添加：

set(CMAKE_CXX_FLAGS "-fsanitize=undefined,address,leak -fno-omit-frame-pointer")
set(CMAKE_C_FLAGS "-fsanitize=undefined,address,leak -fno-omit-frame-pointer")
set(CMAKE_Ｌ_FLAGS "-fsanitize=undefined,address,leak -fno-omit-frame-pointer")