the compile options are-std=c++20 -Wall -Wextra. tested with Clang 16 and Clang trunk at the time of writing. both of them emit error like: :6:13: error: inline function not definedinline void func(T) noexcept;^1 error generated. this source...
Inline code substitution is done at the compiler's discretion. For example, the compiler won't inline a function if its address is taken or if the compiler decides it's too large. A function defined in the body of a class declaration is implicitly an inline function. ...
One and only one definition of every non-inlinefunction or variable that isodr-used(see below) is required to appear in the entire program (including any standard and user-defined libraries). The compiler is not required to diagnose this violation, but the behavior of the program that violates...
if the address of the function is taken or if inlining fails. In general,
Inline User-defined Function Rules Inline user-defined functions follow these rules: The RETURNS clause contains only the keyword table. You do not have to define the format of a return variable, because it is set by the format of the result set of the SELECT statement in the RETURN clause...
3. All the member function declared and defined within class are Inline by default. So no need to define explicitly. 4. Virtual methods are not supposed to be inlinable. Still, sometimes, when the compiler can know for sure the type of the object (i.e. the object was declared and const...
If a call to a given function is integrated, then the function is not output as assembler code in its own right. staticinline Enabled at levels , , and , but not . -O1-O2-O3-Os-Og 意思就是查看代码中所有的函数如果仅仅被调用了一次那么默认 inline内联 如果有函数调用了这样的static修饰的...
A virtual function might not be inlined even when the function is specified with the always_inline attribute. No informational message is issued when a virtual function is not inlined. IPA effects The INLINE option generates inlined code for the regular compiler object; therefore, it affects the...
An inline function shall be defined in every translation unit in which it is used.This is the fundamental difference between using or not using inline. That means inline functions can be defined multiple times in different translation unit (assuming they have exactly the same definition in every ...
P.S. This also goes against my understanding of how the compiler decides to inline or not inline, if force inline is not specified. I always thought the compiler decides on code size in a function. But in this example, the code size of the function stays the same. We just add another...