• tososdk (2/2) Dec 27 2023 Two things: Could you explain how "inline" works? Is there
• Paul Backus (13/15) Dec 27 2023 In C and C++, `inline` is a suggestion to the compiler that it
• Johan (9/17) Dec 27 2023 I don't think the D forums is the best place to ask about how

tososdk <elcahivo gmail.com> writes:

Two things: Could you explain how "inline" works? Is there 
something similar in Dlang?

Paul Backus <snarwin gmail.com> writes:

On Wednesday, 27 December 2023 at 15:57:14 UTC, tososdk wrote:
 Two things: Could you explain how "inline" works? Is there 
 something similar in Dlang?

In C and C++, `inline` is a suggestion to the compiler that it 
should consider using [inline expansion][1] for calls to a 
particular function. However, the compiler is free to ignore this 
suggestion, and is also free to use inline expansion for 
functions that are not marked with `inline`.

In D, the closest equivalent is [`pragma(inline)`][2], which can 
be used to enable or disable inline expansion for a particular 
function. With `pragma(inline, true)`, the function will *always* 
be expanded inline; with `pragma(inline, false)`, it will *never* 
be expanded.

[1]: https://en.wikipedia.org/wiki/Inline_expansion
[2]: https://dlang.org/spec/pragma.html#inline

Johan <j j.nl> writes:

On Wednesday, 27 December 2023 at 16:35:47 UTC, Paul Backus wrote:
 On Wednesday, 27 December 2023 at 15:57:14 UTC, tososdk wrote:
 Two things: Could you explain how "inline" works? Is there 
 something similar in Dlang?


I don't think the D forums is the best place to ask about how 
"inline" works, when you mean another "inline" than what is 
available in D...

 In C and C++, `inline` is a suggestion to the compiler that it 
 should consider using [inline expansion][1] for calls to a 
 particular function. However, the compiler is free to ignore 
 this suggestion, and is also free to use inline expansion for 
 functions that are not marked with `inline`.

`inline` in C/C++ is only vaguely related to inline expansion. 
Its meaning is related to linkage, allowing multiple definitions 
of that symbol. https://en.cppreference.com/w/cpp/language/inline
Dlang does not have something similar.

-Johan