#条件表达式 $<BOOL:string> #等价于C++ if (string) return "1" else return "0" set(STRING2BOOL "not empty") add_custom_command( TARGET MyExecutable PRE_BUILD COMMAND ${CMAKE_COMMAND} -E echo "[3]: STRING2BOOL: ${STRING2BOOL} | $<BOOL:${STRING2BOOL}> | $<$<BOOL:${STRING2BOO...
4. set(var a;b;c) <=> set(var a b c) #定义变量var并赋值为a;b;c这样一个string list 5. Add_executable(${var}) <=> Add_executable(a b c) #变量使用${xxx}引用 6. 条件语句: if(var) #var 非empty 0 N No OFF FALSE... #非运算使用NOT … else()/elseif() … endif(var)...
复制 project(<PROJECT-NAME> [<language-name>...]) project(<PROJECT-NAME> [VERSION <major>[.<minor>[.<patch>[.<tweak>]]] [DESCRIPTION <project-description-string>] [HOMEPAGE_URL <url-string>] [LANGUAGES <language-name>...]) 我们需要指定<PROJECT-NAME>,但其他参数是可选的。调用这个命令...
True if the constant is 1, ON, YES, TRUE, Y, or a non-zero number. False if the constant is 0, OFF, NO, FALSE, N, IGNORE, NOTFOUND, the empty string, or ends in the suffix -NOTFOUND. Named boolean constants are case-insensitive. If the argument is not one of these constants...
set(CACHE_VAR "Default cache value" CACHE STRING "A sample for cache variable") 要点: 主要为了提供可配置变量,比如编译开关; 引用CACHE变量:$CACHE{<varialbe>}。 Cache变量会被保存在构建目录下的CMakeCache.txt中,缓存起来之后是不变的,除非重新配置更新 ...
call the macro with the string "hello world" hello("hello world") define a function hello function(hello MESSAGE) message(${MESSAGE}) endfunction(hello) ``` 更多控制流信息参见命令 if,while,foreach,macro,function文档。 引号,字符串和转义 ...
Trueifthe constant is1, ON, YES, TRUE, Y, or a non-zero number. Falseifthe constant is0, OFF, NO, FALSE, N, IGNORE, NOTFOUND, the emptystring, or endsinthe suffix -NOTFOUND. Named boolean constants arecase-insensitive. If the argument is not one of these constants, it is treated...
string cascadeName; public: Face_detect(string casfile1,int scale1=1,bool tryflip1=true){ cascadeName =casfile1; scale =scale1; tryflip =tryflip1; } int init(){ if (!cascade.load(samples::findFile(cascadeName))) { cerr << "ERROR: Could not load classifier cascade" << endl; ...
10、ro with the string hello world hello(hello world)# define a function hello function(hello MESSAGE)message($MESSAGE) endfunction(hello)更多控制流信息参见命令 if,while,foreach,macro,function档。引号,字符串和转义在CMake中原义字符串双引号括起来。字符串可以是多字符串,并在其中嵌新的。例如set(MY...
4. set(var a;b;c) <=> set(var a b c) #定义变量var并赋值为a;b;c这样一个string list 5. Add_executable({var}) <=> Add_executable(a b c) #变量使用{xxx}引用 6. 条件语句: if(var) #var 非empty 0 N No OFF FALSE... #非运算使用NOT ...