On 9/15/23 4:14 PM, Basile B. wrote:
On Thursday, 14 September 2023 at 15:19:29 UTC, BoQsc wrote:
https://dlang.org/phobos/core_vararg.html
The common way to use **va_arg** is `va_arg!(int)(_argptr);`
What would be the alternative way or syntax that behave exactly the
same way, even if more verbose?
____
`va_arg!(int)(_argptr);` is taken from an example in:
https://dlang.org/spec/function.html#d_style_variadic_functions
here's how
```d
import core.vararg;
void main()
{
foo(.5, 5);
}
void foo(...)
{
int i = void;
va_arg(_argptr, typeid(i), &i);
assert(i == 5);
double d = void;
va_arg(_argptr, typeid(d), &d);
assert(d == .5);
}
```
Note that this doesn't work in gdc.
The templated version is actually more akin to what C does.
-Steve