• okeyes (16/16) Mar 18 2017 visual studio 2013,visuald0.44.1 dmd2.073.2
• Rainer Schuetze (12/28) Mar 19 2017 I guess what you are seeing is a program stop at an Exception in
• okeyes (15/31) Apr 15 2017 int main(string[] argv)
• Rainer Schuetze (3/40) Apr 15 2017 That's the same issue, it doesn't matter where std.format is

okeyes <liangwen msn.com> writes:

visual studio 2013,visuald0.44.1 dmd2.073.2

code like this

import std.stdio;
import std.string;

int main(string[] argv)
{
     writeln("Hello D-World!");
     return 0;
}

unittest
{
	string str=format("test format %d",1);
	writeln(str);
}


when debugger ,getting wrong.

when change Debugger"Mago" to "Visual Studio",is OK

Rainer Schuetze <r.sagitario gmx.de> writes:

On 18.03.2017 14:54, okeyes wrote:
 visual studio 2013,visuald0.44.1 dmd2.073.2

 code like this

 import std.stdio;
 import std.string;

 int main(string[] argv)
 {
     writeln("Hello D-World!");
     return 0;
 }

 unittest
 {
     string str=format("test format %d",1);
     writeln(str);
 }


 when debugger ,getting wrong.

 when change Debugger"Mago" to "Visual Studio",is OK

I guess what you are seeing is a program stop at an Exception in 
std.format that is expected to be thrown by std.format unittests. These 
are compiled into your executable due to the way they are defined as 
part of a template.

The simplest workaround is to sigh and press "Continue".

Alternatively, you can disable stopping on exceptions when they are 
thrown (unhandled exceptions will still be shown). For Mago, that is 
done by unchecking "D Exceptions" in the Exceptions window (Ctrl+Alt+E). 
The Visual Studio debugger treats it as a "Win32 Exception", uncheck "D 
Exception" below that entry. The downside is that the debugger will also 
not break for exceptions that you want to debug.

okeyes <liangwen msn.com> writes:

On Saturday, 18 March 2017 at 13:54:22 UTC, okeyes wrote:
 visual studio 2013,visuald0.44.1 dmd2.073.2

 code like this

 import std.stdio;
 import std.string;

 int main(string[] argv)
 {
     writeln("Hello D-World!");
     return 0;
 }

 unittest
 {
 	string str=format("test format %d",1);
 	writeln(str);
 }


 when debugger ,getting wrong.

 when change Debugger"Mago" to "Visual Studio",is OK


int main(string[] argv)
{
     writeln("Hello D-World!");
     string str=format("test format %d",1);
     return 0;
}


unittest
{
}

get this err.

First-chance exception: D Exception Unterminated format 
specifier: "%" at 
C:\D\dmd2\windows\bin\..\..\src\phobos\std\format.d(1103)

using format and using unittest.

Rainer Schuetze <r.sagitario gmx.de> writes:

On 15.04.2017 09:28, okeyes wrote:
 On Saturday, 18 March 2017 at 13:54:22 UTC, okeyes wrote:
 visual studio 2013,visuald0.44.1 dmd2.073.2

 code like this

 import std.stdio;
 import std.string;

 int main(string[] argv)
 {
     writeln("Hello D-World!");
     return 0;
 }

 unittest
 {
     string str=format("test format %d",1);
     writeln(str);
 }


 when debugger ,getting wrong.

 when change Debugger"Mago" to "Visual Studio",is OK


 int main(string[] argv)
 {
     writeln("Hello D-World!");
     string str=format("test format %d",1);
     return 0;
 }


 unittest
 {
 }

 get this err.

 First-chance exception: D Exception Unterminated format specifier: "%"
 at C:\D\dmd2\windows\bin\..\..\src\phobos\std\format.d(1103)

 using format and using unittest.

That's the same issue, it doesn't matter where std.format is 
instantiated. Being a template its unittests are still compiled in.