Comment #0 by bearophile_hugs — 2010-08-29T08:43:06Z
This D2 program:
void main() {
assert(0, "This is a message");
}
With dmd 2.048 prints:
object.Error: assert(0) or HLT instruction
It doesn't print the line number nor the "This is a message".
Comment #1 by andrej.mitrovich — 2010-08-29T10:50:43Z
assert(0) is special. It's not meant for debugging, it's meant as a "this piece of code should never have been reached, shut down the application", at least in release mode.
From TDPL:
"In non-release mode, assert(false) does not do anything special, it just throws an AssertError exception"
"In release mode assert(false) will always cause a program to stop. There will be no exception, the program will crash by executing the HLT instruction"
Comment #2 by bearophile_hugs — 2010-08-29T18:28:13Z
You are right, thank you. I have erroneously compiled it in release mode. There is no bug here.