在一个作用域内,一个之前出现的标识符,后面被 extern 修饰,如果前面一次是 internal或 external linkage, 后面一次的linkage 类型和前面的相同。 如果之前没出现过,或者前面出现时是 none linkage 类型,则后面一次是 external linkage 类型。 If the declaration of an identifier for a function has no storage-cla...
33 | extern "C" { | ^~~~ /root/xmrig-C3/src/backend/cpu/CpuWorker.cpp:453:1: error: template with C linkage 453 | template<size_t N> | ^~~~ In file included from /root/xmrig-C3/src/crypto/randomx/intrin_portable.h:385, from /root/xmrig-C3/src/crypto/randomx/randomx.h:36,...
可以用存储期storage duration描述对象,所谓存储期是指对象在内存中保留了多长时间。标识符用于访问对象,可以用作用域scope和链接linkage描述标识符,作用域和链接表明了程序中哪些部分可以使用它。 1.作用域 作用域描述了程序中可访问标识符的区域,一个C变量的作用域可以是块作用域、函数作用域、函数原型作用域或文件作...
由于在两个目标文件对于同一对象的命名不一样,链接器将报告相关的“符号未定义”错误。 为了解决这一问题,C++引入了链接规范(linkage specification)的概念,表示法为extern"language string",C++编译器普遍支持的"language string"有"C"和"C++",分别对应C语言和C++语言。 链接规范的作用是告诉C++编译:对于所有使用了...
/usr/include/c++/11/type_traits:44:3: error: template with C linkage 44 | template<typename... _Elements> | ^~~~ In file included from bicubic.cpp:52: ../../libvips/include/vips/vips.h:84:1: note: 'extern "C"' linkage started here 84 | extern "C" { | ^~~~ ... (the ...
same scope more than once can be made to refer to the same identifier or function by a process called "linkage." Linkage determines the portions of the program in which an identifier can be referenced (its "visibility"). There are three kinds of linkage:internal,external, andno linkage. ...
为了解决这一问题,C++引入了链接规范(linkage specification)的概念,表示法为extern"language string",C++编译器普遍支持的"language string"有"C"和"C++",分别对应C语言和C++语言。 链接规范的作用是告诉C++编译:对于所有使用了链接规范进行修饰的声明或定义,应该按照指定语言的方式来处理,比如名字,调用习惯(calling co...
same scope more than once can be made to refer to the same identifier or function by a process called "linkage." Linkage determines the portions of the program in which an identifier can be referenced (its "visibility"). There are three kinds of linkage:internal,external, andno linkage. ...
An identifier declared in different scopes or in the same scope more than once can be made to refer to the same identifier or function by a process called "linkage." Linkage determines the portions of the program in which an identifier can be referenced (its "visibility"). There are three...
为了解决这一问题,C++引入了链接规范(linkage specification)的概念,表示法为extern"language string",C++编译器普遍支持的"language string"有"C"和"C++",分别对应C语言和C++语言。 链接规范的作用是告诉C++编译:对于所有使用了链接规范进行修饰的声明或定义,应该按照指定语言的方式来处理,比如名字,调用习惯(calling co...