No Output with shebang.

2014-08-20 Thread Newbie via Digitalmars-d-learn

#!/usr/bin/gdc

import std.stdio;
void main()
{
 writeln("Hello, world with automated script running!");
}

When I compile the code above normal to an a.out binary it runs
like expected. But running it with shebang it does nothing. No
output, especially no error message. Nothing.

What do I wrong?


Re: No Output with shebang.

2014-08-20 Thread Newbie via Digitalmars-d-learn

On Wednesday, 20 August 2014 at 20:21:13 UTC, anonymous wrote:

On Wednesday, 20 August 2014 at 20:17:49 UTC, Newbie wrote:

#!/usr/bin/gdc

import std.stdio;
void main()
{
writeln("Hello, world with automated script running!");
}

When I compile the code above normal to an a.out binary it runs
like expected. But running it with shebang it does nothing. No
output, especially no error message. Nothing.

What do I wrong?


gdc just compiles the program to a.out. It doesn't run the
resulting executable. You need to use something like rdmd 
instead

of gdc. rdmd compiles to some temporary location and then runs
the executable.


Wow, that was fast. Thanks a lot!



Re: No Output with shebang.

2014-08-20 Thread anonymous via Digitalmars-d-learn

On Wednesday, 20 August 2014 at 20:17:49 UTC, Newbie wrote:

#!/usr/bin/gdc

import std.stdio;
void main()
{
 writeln("Hello, world with automated script running!");
}

When I compile the code above normal to an a.out binary it runs
like expected. But running it with shebang it does nothing. No
output, especially no error message. Nothing.

What do I wrong?


gdc just compiles the program to a.out. It doesn't run the
resulting executable. You need to use something like rdmd instead
of gdc. rdmd compiles to some temporary location and then runs
the executable.


Re: No Output with shebang.

2014-08-20 Thread Philippe Sigaud via Digitalmars-d-learn
>> gdc just compiles the program to a.out. It doesn't run the
>> resulting executable. You need to use something like rdmd instead
>> of gdc. rdmd compiles to some temporary location and then runs
>> the executable.
>
>
> Wow, that was fast. Thanks a lot!

Can compiler switches be used with the shebang notation? If yes, there
is certainly a GDC flag (-run?) that tells it to run the generated
executable.


Re: No Output with shebang.

2014-08-20 Thread ketmar via Digitalmars-d-learn
On Wed, 20 Aug 2014 23:03:48 +0200
Philippe Sigaud via Digitalmars-d-learn
 wrote:

> Can compiler switches be used with the shebang notation? If yes, there
> is certainly a GDC flag (-run?) that tells it to run the generated
> executable.
it's possible to use switches, but GDC is not fitted for such usage
anyway. it will not automatically compile included modules, it will not
automatically put the binary in predefined place and so on. ah, dmd is
not suitable for such usage too, that's why we have rdmd.

rdmd can be adapted to use GDC (if compiled with GDC, rdmd will use
gdmd instead of dmd), but dmd is faster and the quality of generated
code is not so important in scripts.


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