在某个class中定义了static constexpr size_t value变量,调用如下: std::vector<std::pair<size_t,size_t>> vec;vec.push_back({0, value}); release编译可以通过,debug编译时报错Undefined reference to XXX::value。 分析# 对于gcc而言constexpr变量属于compile time const是不存在地址的, 任何取值不涉及地...
// .hpp struct foo { void bar(); static constexpr char baz[] = "quz"; }; // .cpp void foo::bar() { std::string str(baz); // undefined reference to baz } c++ c++11 static-members constexpr Share Improve this question Follow edited Apr 18, 2016 at 18:02 asked Nov 4, ...
When calling the instance of the class I am getting the error "Undefined reference to "error: 'constexpr' needed for in-class initialization of static data member 'DemoClass* DemoClass::s_instance' of non-integral type [-fpermissive]". The code snippet is as below: class DemoClass ...
Depending on the compiler and sometimes the build type, I have undefined references to static constexpr member variable fbgemm::BCSRMatrix<signed char, 1, 4>::COLTILE. Here is the error with apple-clang 12 on Macos with fbgemm shared and...
static constexpr遇到的undefined 问题 classSolution {staticconstexprintcheck[10] = {0,0,1, -1, -1,1,1, -1,0,1};public:introtatedDigits(intn) {intans =0;for(inti =1; i <= n; ++i) { std::stringnum =std::to_string(i);boolvalid =true, diff =false;for(charch: num) {if...
I’ve tried this cause I’ve found just a reference on stackoverflow about it, where it is mentioned also to link the file with the option “-lm”, but unfortunately I can’t figure out how to use it properly, and do not know if it’ll work (undefined refe...
(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, char const*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)': b.cpp:(.text._ZN7doctest6detail19stringifyBinaryExprINSt3__...
Then I want to use this library in a C++ project. I wrapped an extern "C" around the include of the header files to eliminate name mangling. However, I got linker errors for the library functions (undefined references). The C++ project adds an "__imp_" to the name of c functions. ...
在使用上述示例代码时,如果出现“undefined reference to `Fish::Fish(std::string)'”的错误信息,就可以按照上述步骤进行排查和解决。 本文内容通过AI工具匹配关键字智能整合而成,仅供参考,火山引擎不对内容的真实、准确或完整作任何形式的承诺。如有任何问题或意见,您可以通过联系service@volcengine.com进行反馈,火山...
NDK开发之 Undefined Reference to Typeinfo 最近给现在代码增加个功能,可以使用代理走向内网指定服务器,但是功能增加后一直编译不过,报错:"Undefined Reference to Typeinfo HttpClient", 很奇怪,代码看着没什么问题,就是编译不过。CPP最烦的就是不说人话。。。要让你去猜...