main。o: In function `main':main。c:(。text+0x7): undefined reference to `test'collect2: ld returned 1 exit status 这就是最典型的undefined reference错误，因为在链接时发现找不到某个函数的实现文件，本例中test。 o文件中包含了test
gcc -o main main.o你会发现，编译器报错了：/tmp/ccCPA13l.o: In function `main':main.c:(.text+0x7): undefined reference to `test'collect2: ld returned 1 exit status其根本原因也是找不到test()函数的实现文件，由于该test()函数的实现在test.a这个静态库中的，故在链接的时候需要...
The swap function uses the call by reference mechanism for both parameters. However, it is possible to mix the call by value and call by reference mechanisms in a single function. Another situation in which call by reference is useful is when we need to return two or more values from a f...
voidfunc1(int b){// 在函数内部,形参b的值等于实参aprintf("b = %d.\n",b);printf("in func1, &b = %p.\n",&b);}intmain(){int a=4;printf("&a = %p.\n",&a);func1(a);return0;} 输出结果如下图所示,所以我们在子函数内去修改形参被赋予实参的值,其实是不会改变实参原来的值,因...
abcabcabc}intcalculate(intx,int*y,int*z){*y=pow(x,2);*z=pow(x,3);return0;} Output When you run this code, it will produce the following output − a: 10 Square of a: 100 Cube of a: 1000 The Call by Reference mechanism is widely used when a function needs to perform memory...
* Function Name : TIM1_BRK_IRQHandler * Description : This function handles TIM1 Break interrupt request. ***/voidTIM1_BRK_IRQHandler(void){//关闭IGBT,并报错TIM_ClearITPendingBit(TIM1,TIM_IT_Break);} 1、配置TIM1的CH1–A8、CH2–A9、CH3–A10、CH4-A11、CH1N-B13、CH2N-B14、CH3N-B15、BKIN...
FUNCTION CALL BY REFERENCE IN OBJECTIVE-C http://www.tutorialspoint.com/objective_c/objective_c_function_call_by_reference.htm Copyright © tutorialspoint.com The call by reference method of passing arguments to a function copies the address of an argument into the formal parameter. Inside the ...
/tmp/ccCPA13l.o: In function `main':main.c:(.text+0x7): undefined reference to `test'collect2: ld returned 1 exit status 其根本原因也是找不到test()函数的实现文件，由于该test()函数的实现在test.a这个静态库中的，故在链接的时候需要在其后加入test.a这个库，链接命令修改为如下...
ref: https://www.tutorialspoint.com/c_standard_library/c_function_rand.htm https://www.cplusplus.com/reference/cstdlib/rand/ https://akaedu.github.io/book/index.html编辑于 2024-12-17 16:35・IP 属地未知 C / C++ C(编程语言) 儿童教育 赞同152 条评论 分享喜欢收藏...
C和C++混编译后互相调用函数提示undefined reference to,编译提示成功,可发现调用C++函数时提示 ^ [ 98%] Building CXX object CMakeFiles/tapp.dir/zmkzlibdata/udpbrd.cpp.o[100%] Linking CXX executable tappCMakeFiles/tapp.dir/system/Main.c.o: In function `main': ...