Simply, it should be replaced by:
void safeFunc() @safe {
unsafe {
auto vi = doUnsafeCall();
}
}
@trusted functions are prohibited by d-idiom (so I don't know why
are still in D).
So, when I need to create a simple window with OpenGL context I
need to write about 10-15 calls to system functions. But
D-idiom[1] for @trusted tells me to make @trusted functions as
small as possible. OK, it makes sense.
but writing 20 times something like:
auto vi = (() @trusted => glXChooseXFBConfig(...))();
or:
auto vi = () @trusted { return glXChooseXFBConfig(...); }();
is annoying and just forced me to mark whole class with
@trusted...
[1]
https://dlang.org/blog/2016/09/28/how-to-write-trusted-code-in-d/
