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digitalmars.D.learn - getChar() vs. getChar!true()

reply "Peter Sommerfeld" <noreply rubrica.at> writes:
In std.json is a function getchar() with this signature:

dchar getChar(bool SkipWhitespace = false);

But it is called differently:

getChar(); // obviously SkipWhitespace = true;

getChar!true(); // probably getchar(true)

What is the reason for the different notation ?

Peter
Mar 20 2013
next sibling parent reply "cal" <callumenator gmail.com> writes:
On Wednesday, 20 March 2013 at 20:11:47 UTC, Peter Sommerfeld 
wrote:
 In std.json is a function getchar() with this signature:

 dchar getChar(bool SkipWhitespace = false);
It looks like the signature (line 115) is: dchar getChar(bool SkipWhitespace = false)() Note the extra set of parens at the end, making the bool a template parameter.
Mar 20 2013
parent "Peter Sommerfeld" <noreply rubrica.at> writes:
cal wrote:

 On Wednesday, 20 March 2013 at 20:11:47 UTC, Peter Sommerfeld wrote:
 In std.json is a function getchar() with this signature:

 dchar getChar(bool SkipWhitespace = false);
It looks like the signature (line 115) is: dchar getChar(bool SkipWhitespace = false)() Note the extra set of parens at the end, making the bool a template parameter.
Thanks, I must look more carefully... Peter
Mar 20 2013
prev sibling parent reply =?UTF-8?B?QWxpIMOHZWhyZWxp?= <acehreli yahoo.com> writes:
On 03/20/2013 01:11 PM, Peter Sommerfeld wrote:
 In std.json is a function getchar() with this signature:

 dchar getChar(bool SkipWhitespace = false);
That 'false' up there is the default value of SkipWhitespace.
 But it is called differently:

 getChar(); // obviously SkipWhitespace = true;
No, in that case SkipWhitespace==true.
 getChar!true(); // probably getchar(true)

 What is the reason for the different notation ?
The same thing; just being explicit. Aside: bool parameters (regular or template) hurt readability. It would be better to have defined a type similar to std.stdio.KeepTerminator and its use with byLine(): http://dlang.org/phobos/std_stdio.html#.File.byLine Ali
Mar 20 2013
next sibling parent =?UTF-8?B?QWxpIMOHZWhyZWxp?= <acehreli yahoo.com> writes:
On 03/20/2013 01:27 PM, Ali Çehreli wrote:

  > getChar(); // obviously SkipWhitespace = true;

 No, in that case SkipWhitespace==true.
I said "No" but kept your value. :) I meant "No, in that case SkipWhiteSpace==false." Ali
Mar 20 2013
prev sibling parent "Peter Sommerfeld" <noreply rubrica.at> writes:
Ali =C7ehreli:
 Aside: bool parameters (regular or template) hurt readability. It woul=
d =
 be better to have defined a type similar to std.stdio.KeepTerminator a=
nd =
 its use with byLine():

    http://dlang.org/phobos/std_stdio.html#.File.byLine
I see. On the other hand: For an internal function like getChar()() the implementation seem so be a bit to intricate. But for a public API certainly preferable. Peter
Mar 20 2013