inline函数出现 undefined reference 错误 原因:你把inline函数的implementation放到cpp文件里肯定要报这个错误 正确的做法:把inline函数的声明和实现都放到header里,例如 // declaration: return_type function_name(param_type1, param_type2, ...); // implementation: inline return_type function_name(param_type1...
3. 解决“inline undefined reference to”错误的方法 确保函数实现可见:对于inline函数,确保其实现在头文件中可见,或者在.cpp文件中声明为inline。 cpp // 正确的做法:将inline函数的实现放在头文件中 inline void myInlineFunction() { // 函数实现 } // 或者,在.cpp文件中声明为inline inline void myInlineFu...
如果将函数的实现放在cpp文件中,并且标记为inline, 那么该函数对其他编译单元不可见(类似static的效果),也就是其他cpp文件不能链接该函数库,这就是标题中出现的 … undefined reference to … 问题原因就是,编译器在编译一个inline函数时,需要知道其完整定义,如果编译器在本编译单元找不到inline函数定义就会报错(inli...
这个更直接的提示, 喻示这样的错误: sum 是外部链接(external linkage)的内联函数(inline function), ...
inline函数需要是internal linkage,而函数默认是具备external linkage,此类函数是无法标识为inline,编译时会出现错误,gcc会提示“undefined reference to xxx”。所以使用inline时,一般要与static标识符一起使用。 实现 1//header.h2#include <stdio.h>3inlinestaticvoidinline_function() {4printf("inline function\n"...
in function `print_small_pizza_area': small.c:(.text+0xd): undefined reference to `circle_area' /usr/bin/ld: big.o: in function `print_big_pizza_area': big.c:(.text+0xd): undefined reference to `circle_area' clang-13: error: linker command failed with exit code 1 (use -v to...
InlineTest.cpp: voidInlineTest::Test() { //thisisprettygood,buthaverestriction,thefunctionmustbeusedinInlineTest.cpp,nowhereelse. }
cppreference中的定义如下: Only one definition of any variable, function, class type, enumeration type,concept(since C++20) or template is allowed in any one translation unit (some of these may have multiple declarations, but only one definition is allowed). ...
non-inline non-static function, or a function declaredextern inline. This one translation unit is said to provide theexternal definition. In order to avoid undefined behavior, one external definition must exist in the program if the name of the function with external linkage is used in an expre...
build/applications/main.o: In function `main': /home/recan/win_share_workspace/rt-thread-share/rt-thread/bsp/qemu-vexpress-a9/applications/main.c:253: undefined reference to `test_func' collect2: error: ld returned 1 exit status scons: *** [rtthread.elf] Error 1 ...