• KennyTM~ (3/3) Jul 12 2011 I've just opened a pull request* to enable std.stdio.writeln in CTFE.
• bearophile (5/9) Jul 12 2011 A tidy printing function is needed at CT, and the better CTFE becomes, t...
• Brad Roberts (2/5) Jul 12 2011 Unless it supports everything that the runtime version does, using the s...
• Walter Bright (3/8) Jul 12 2011 I agree with Brad, though I need to look at the actual pull request.
• Nick Sabalausky (11/22) Jul 12 2011 That's insufficient:

KennyTM~ <kennytm gmail.com> writes:

I've just opened a pull request* to enable std.stdio.writeln in CTFE. 
Any comments?

*: https://github.com/D-Programming-Language/dmd/pull/237

bearophile <bearophileHUGS lycos.com> writes:

KennyTM~:

 I've just opened a pull request* to enable std.stdio.writeln in CTFE. 
 Any comments?
 
 *: https://github.com/D-Programming-Language/dmd/pull/237

A tidy printing function is needed at CT, and the better CTFE becomes, the more
need there is for it.
I have suggested the "ctputs" name if it's simple (ctputs is supposed to work
equally well at compile time and a run time!). But if you are able to implement
the whole writeln, then calling it writeln is better, less names to remember
and to use :-) A printing function is not just for debugging.

Bye,
bearophile

Brad Roberts <braddr puremagic.com> writes:

On 7/12/2011 1:20 AM, KennyTM~ wrote:
 I've just opened a pull request* to enable std.stdio.writeln in CTFE. Any
comments?
 
 *: https://github.com/D-Programming-Language/dmd/pull/237

Unless it supports everything that the runtime version does, using the same
name is a bad idea, imho.

Walter Bright <newshound2 digitalmars.com> writes:

On 7/12/2011 7:21 PM, Brad Roberts wrote:
 On 7/12/2011 1:20 AM, KennyTM~ wrote:
 I've just opened a pull request* to enable std.stdio.writeln in CTFE. Any
comments?

 *: https://github.com/D-Programming-Language/dmd/pull/237

 Unless it supports everything that the runtime version does, using the same
name is a bad idea, imho.

I agree with Brad, though I need to look at the actual pull request.

There's also pragma(msg, "hello at compile time").

"Nick Sabalausky" <a a.a> writes:

"Walter Bright" <newshound2 digitalmars.com> wrote in message 
news:ivj8t7$je7$1 digitalmars.com...
 On 7/12/2011 7:21 PM, Brad Roberts wrote:
 On 7/12/2011 1:20 AM, KennyTM~ wrote:
 I've just opened a pull request* to enable std.stdio.writeln in CTFE. 
 Any comments?

 *: https://github.com/D-Programming-Language/dmd/pull/237

 Unless it supports everything that the runtime version does, using the 
 same name is a bad idea, imho.

 I agree with Brad, though I need to look at the actual pull request.

 There's also pragma(msg, "hello at compile time").

That's insufficient:

enum x = foo("abc");
string foo(string a)
{
    a ~= "def";

    // printf-debug a CTFE:
    pragma(msg, "a: "~a); // <-- Big Fail

    return a;
}