有的时候为了程序的通用性，可以使用#define预处理宏定义命令，它的具体作用，就是方便程序段的定义和修改。举个例子吧，如果说你在做一个项目，这个项目的代码很长，有5000多行，而且基本上里面的同一个常量N就占了3000多行，如果说今后你要是想对这个常量N的值进行修改，如果在程序的开始没有定义一个#define N，那么改起来不
If you want to use a function across multiple source files, you should declare the function in one header file (.h) and then put the function definition in one source file (.c or .cpp). All code that uses the function should include just the .h file, and you should link the resulti...
A better way to fix it is to wrap the function in ado ... while(0)construct. This construct requires a semicolon at the end, which is exactly what we want. Usingwhile(0)ensures that the loop never really loops, and its contents are only executed once. #defineTIME(name, lastTimeVaria...
S.c = 15; S.name ='My Name'; S.age = 105; end When you call this function it will return a structure with all of the given variables in it. This is trivial to use: S = myConst(); S.a% use the |a| value Solution Two: Settable Values ...
它的定义是这样的：define IN define OUT 然后它的用法可能是这样的：void function(IN LPARAM lParam, OUT WPARAM outparam);IN和OUT只是修饰，不代表任何东西，所起的只是一个说明作用，说明一个参数是一个输入参数，而另一个是一个输出参数，还能增加代码的可读性。这...
define 是宏定义的意思，即将程序中IN出现的地方用1替代，OUT出现的地方用0替代。用法为 #define 标识符 替换值 include是包含头文件 C
Unused function 'StringForEnum'But it is used, in an Objective-C class and also in a Unit Test, which verifies that the switch statement returns the correct string.From some googling, I've found some recommendations to declare the function as static inline instead. I've also seen that fun...
ISPF provides the binary string data format to support dialog applications written in the C language. When a variable defined as BINSTR is updated in the function pool, ISPF pads with binary zeros. This is desirable within C function programs, because the C language uses binary zeros to mark...
FUNCTION myMeth(parm1 AS Integer @, parm2 AS String) AS Integer ENDFUNC [HELPSTRING cHelpString] Specifies a string to add to the type library as a description of the method's functionality to display in an object browser or IntelliSense. THIS_ACCESS( cMemberName) Specifies to create a...
fmt.Println(a,b,c)} Copy When we created the function signature foraddNumbers, we did not need to specify the type each time, but only at the end. We passed the number1in for thexparameter,2in for theyparameter, and3in for thezparameter. These values correspond with each parameter in...