2 条件分支 这里以if()/elseif()/else()/endif()举个例子,for/while循环也是类似的: set(EMPTY_STR "") if (NOT EMPTY_STR AND FLAG AND NUM LESS 50 AND NOT NOT_DEFINE_VAR) message("The first if branch...") elseif (EMPTY_STR) message("EMPTY_STR is not empty") else () message("A...
if(var) #var 非empty 0 N No OFF FALSE... #非运算使用NOT … else()/elseif() … endif(var) 7. 循环语句 Set(VAR a b c) Foreach(f ${VAR}) …Endforeach(f) 8. 循环语句 WHILE() … ENDWHILE() 五、 内部变量 CMAKE_C_COMPILER:指定C编译器 CMAKE_CXX_COMPILER: CMAKE_C_FLAGS:...
if(CMAKE_SYSTEM_NAME STREQUAL "Linux") message(STATUS "Doing things the usual way") elseif(CMAKE_SYSTEM_NAME STREQUAL "Darwin") message(STATUS "Thinking differently") elseif(CMAKE_SYSTEM_NAME STREQUAL "Windows") message(STATUS "I'm supported here too.") elseif(CMAKE_SYSTEM_NAME STREQUAL ...
get_target_property(TEMP ${THE_TARGET} COMPILE_FLAGS)if(TEMP STREQUA...
if(<constant>) Trueifthe constant is1, ON, YES, TRUE, Y, or a non-zero number. Falseifthe constant is0, OFF, NO, FALSE, N, IGNORE, NOTFOUND, the emptystring, or endsinthe suffix -NOTFOUND. Named boolean constants arecase-insensitive. If the argument is not one of these constants...
cmake_minimum_required(VERSION 3.20.0) project(NoInSource CXX) if(PROJECT_SOURCE_DIR STREQUAL PROJECT_BINARY_DIR) message(FATAL_ERROR "In-source builds are not allowed") endif() message("Build successful!") 如果Kitware(CMake 背后的公司)正式支持CMAKE_DISABLE_SOURCE_CHANGES或CMAKE_DISABLE_IN...
True if the constant is 1, ON, YES, TRUE, Y, or a non-zero number. False if the constant is 0, OFF, NO, FALSE, N, IGNORE, NOTFOUND, the empty string, or ends in the suffix -NOTFOUND. Named boolean constants are case-insensitive. If the argument is not one of these constants...
if (src.empty()) { cout << "Could not open or find the image!\n" << endl; cout << "Usage: " << argv[0] << " <Input image>" << endl; return -1; } // Show source image imshow("src", src); //! [load_image] ...
if(NOT HUNTER_ENABLED) # Empty function to avoid error "unknown function" function(hunter_add_package) endfunction() set( _hunter_gate_disabled_mode_dir "${CMAKE_CURRENT_LIST_DIR}/cmake/Hunter/disabled-mode" ) if(EXISTS "${_hunter_gate_disabled_mode_dir}") hunter_gate_sta...
If the ALL option is specified it indi- cates that this target should be added to the default build target so that it will be run every time (the command cannot be called ALL). The command and argu- ments are optional and if not specified an empty target will be created. If WORKING_...