错误的 MIN MAX 宏定义 朋友面试时遇到的一个问题: Define a standard macro MAX with 2 parameters. It returns the greater one. (Please provide program segments) 第一反应是这样的: #defineMYMAX(A, B) (A < B ? B : A) 然而直觉告诉我问题肯定没这么简单,那么坑在哪里?答案是当你使用++操作符...
於是我在 boost/config/suffix.hpp 裡,發現了 BOOST_PREVENT_MACRO_SUBSTITUTION 這一個宏命令,被安插在可能被 VC6 搞爛的 min/max 後面,括弧前面。其用法如下:std::max BOOST_PREVENT_MACRO_SUBSTITUTION(value1, value2); // or std::numeric_limits<Foo>::max BOOST_PREVENT_MACRO_SUBSTITUTION();實際上...
) #调用宏,打印变量msg的值 PRINT_MESSAGE(${msg}) #调用宏,计算传入的两个数的最大值并打印 PRINT_MAX(10 20) function和macro的区别 参数传递 function和macro在参数传递方面有所不同。在function中,参数传递是通过参数列表来完成的,参数有类型和顺序,类似于C语言函数的参数传递方式。而在macro中,参数传递是...
fatal error C1189: #error: "Oops: min() and/or max() are defined as preprocessor macros. Define NOMINMAX macro before including any system headers!" 2.原因分析 图1 pqxx头文件中的定义 (1)如上图1所示,pqxx的头文件中compiler-public.hxx中有一段,如果定义了min和max,则会抛出错误。系统头文件...
The MIN, MAX, and ABS macro definitions on OS X don't have the multiple expression evaluation problem unless you've defined STRICT_ANSI, IIRC.Pierre Lebeaupin at 2011-01-02 14:17:31:Psy beat me to the punch, but related to multi-line macros and X-Macros, you have the (to use ...
do-while 结构的基本语法是：#define MACRO_NAME(arguments...) do { \ /* macro definition *...
{message}) endmacro()#定义一个宏,用于计算传入的两个数的最大值并打印macro(PRINT_MAX a b)#定义一个变量max,并将其初值设置为aset(max ${a})#如果b比max大,则将max的值设为bif(${b} GREATER ${a}) set(max ${b}) endif()#打印最大值message("max=${max}") endmacro()#调用宏,打印"...
MACRO: max of a and b is: -1FUNC : max of a and b is: 2 6、常量建议使用 const 定义代替宏 “尽量用编译器而不用预处理”,因为#define经常被认为好象不是语言本身的一部分。看下面的语句: #define ASPECT_RATIO 1.653 编译器会永远也看不到ASPECT_RATIO这个符号名,因为在源码进入编译器之前,它会...
chatmaxmin chattanooga state tec chattel claimed chatter with chatting with friends chatting with friends chatting programming chau chak wing chau no va mas chaudry chaunte howard chaur-shyan lee chauvinistisch ue adj chavalit yongchaiyudh chaves county nm chavicol methylether chb customs house bro ...
candragomin candragupta maurya candy clyde candy and mark candy counter candy store owner candy tray candy-coated candyla cane sugar refining cane trash compost canelones canevale canextrusion canfor cang tsang cang du cang nan xian long cang-sang pan cangallo cangan cangaroo cangrande della scal...