This is a regression introduced in Clang 15. template <typename F> void foo() { [&](auto) { struct Guard { ~Guard() {} }; Guard guard; }(42); } int main() { foo<int>(); } Godbolt link Clang says: :6:24: warning: inline function '...
Multiple definition of... extern inline When I tried to compile gnutls-2.6.6, I got a lot of these: .libs/gnutls_compress.o:Infunction`__strcspn_c1': /usr/include/bits/string2.h:972: multiple definition of `__strcspn_c1' .libs/gnutls_record.o:/usr/include/bits/string2.h:972: ...
"inline": the function may be inlined (it's just a hint though).An out-of-line version is always emitted and externally visible. Hence you can only have such an inline defined in one compilation unit, and every other one needs to see it as an out-of-line function (or you'll get ...
答案当然是不会有问题(要不 template 早就被抱怨死了)。其实编译器也考虑到会遇到类似的问题,在编译器或连接器的某处已经有防止重定义的处理了。这里参考 stackflow 中的答案:http://stackoverflow.com/questions/235616/multiple-definitions-of-a-function-template...
Resolve Issue: coder.inline("never") and coder.nonInlineCall Do Not Prevent Function Inlining Troubleshoot instances ofcoder.inline('never')not preventing inlining. Resolve Issue: Variables Must Be Fully Defined Before Use Troubleshoot code generation errors when variables, including structure fields ...
Toggle member functions The function definition of a member function can by moved from the class declaration in the header file to an inline definition in the header file to the implementation file and back to the class definition.
报错的重点是first defined here In function和multiple definition of 测试示例代码如下: util.h #pragma once #include<stdio.h>voidprint(){printf("test");} a.c #include"util.h"voida(){print();} main.c #include"util.h"#include"a.c"intmain(void){a();} ...
It is a violation of the One Definition Rule, you've got several translation units that define the same function or variable. This is common caused because you put the definition of a function in a header file. Then all the sources that include that header would have that function definition...
};inlinevoidbase::f()const{ }exportmodule b; import a; Cause clang to crash with /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -std=c++23 -MD -MT CMakeFiles/bug.dir/b.cpp.o -MF...
Inline constraint not respected Nonidentical definitions of function or object across modules Examples expand all Check Information Group:01. Declarations and Initialization (DCL) Version History Introduced in R2019a expand all See Also Check SEI CERT-C++ (-cert-cpp)) ...