Ada Performance Issue?

General
22

-gnatn[2] magically becomes -gnat[2] ?

gnatmake -O3 -fomit-frame-pointer -march=ivybridge -gnatn[2] -f binarytrees.adb -o binarytrees.gnat_run -largs -lapr-1
x86_64-linux-gnu-gcc-13 -c -O3 -fomit-frame-pointer -march=ivybridge -gnatn[2] binarytrees.adb
gnat1: invalid switch: -gnat[2]
23

That would be -gnatn, -gnatn1, or -gnatn2

24

…and as C programmers will tell you, those checks aren’t necessary, because They Know What They’re Doing ™.

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25

-gnatn2 it is then.

Your post was flagged as spam

Meanwhile, the communities of newer programming languages take every opportunity to promote them.

26

It’s an automated filter that triggers when a new user posts a lot of links. I’ve restored your posts.

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27

I’m not familiar with exactly what he did, but it’s often more complex than that. Comparisons often include text I/O, for example, and Ada.Text_IO is more complex than C’s text-I/O facilities.

Ada.Text_IO.Put_Line (Item => "Hello");

does more than just output “Hello”. It also sets the current column to 1 and increments the current line. Depending on how it’s implemented, it could also increment the current column 5 times before setting it to 1. Even importing the C subprograms and calling them using Interfaces.C.To_C introduces additional operations not present in the C.

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