[Issue 8799] Give example of Tuple mapped to a function

2017-01-16 Thread via Digitalmars-d-bugs 
https://issues.dlang.org/show_bug.cgi?id=8799

--- Comment #7 from github-bugzi...@puremagic.com ---
Commits pushed to newCTFE at https://github.com/dlang/phobos

https://github.com/dlang/phobos/commit/e0ca51f9f01cc2a089907b09f9e0ed3dd15df643
fix issue 8799

https://github.com/dlang/phobos/commit/c77869f22e61919a9f3d617d7d5d2254641aa7e4
Merge pull request #4882 from somzzz/issue_8799

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[Issue 8799] Give example of Tuple mapped to a function

2017-01-06 Thread via Digitalmars-d-bugs 
https://issues.dlang.org/show_bug.cgi?id=8799

--- Comment #6 from github-bugzi...@puremagic.com ---
Commits pushed to stable at https://github.com/dlang/phobos

https://github.com/dlang/phobos/commit/e0ca51f9f01cc2a089907b09f9e0ed3dd15df643
fix issue 8799

https://github.com/dlang/phobos/commit/c77869f22e61919a9f3d617d7d5d2254641aa7e4
Merge pull request #4882 from somzzz/issue_8799

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[Issue 8799] Give example of Tuple mapped to a function

2016-12-27 Thread via Digitalmars-d-bugs 
https://issues.dlang.org/show_bug.cgi?id=8799

--- Comment #5 from github-bugzi...@puremagic.com ---
Commits pushed to scope at https://github.com/dlang/phobos

https://github.com/dlang/phobos/commit/e0ca51f9f01cc2a089907b09f9e0ed3dd15df643
fix issue 8799

https://github.com/dlang/phobos/commit/c77869f22e61919a9f3d617d7d5d2254641aa7e4
Merge pull request #4882 from somzzz/issue_8799

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[Issue 8799] Give example of Tuple mapped to a function

2016-11-01 Thread via Digitalmars-d-bugs 
https://issues.dlang.org/show_bug.cgi?id=8799

--- Comment #4 from github-bugzi...@puremagic.com ---
Commits pushed to master at https://github.com/dlang/phobos

https://github.com/dlang/phobos/commit/e0ca51f9f01cc2a089907b09f9e0ed3dd15df643
fix issue 8799

https://github.com/dlang/phobos/commit/c77869f22e61919a9f3d617d7d5d2254641aa7e4
Merge pull request #4882 from somzzz/issue_8799

fix issue 8799

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[Issue 8799] Give example of Tuple mapped to a function

2016-11-01 Thread via Digitalmars-d-bugs 
https://issues.dlang.org/show_bug.cgi?id=8799

--- Comment #3 from Lucia Cojocaru  ---
pull https://github.com/dlang/phobos/pull/4882

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[Issue 8799] Give example of Tuple mapped to a function

2016-10-20 Thread via Digitalmars-d-bugs 
https://issues.dlang.org/show_bug.cgi?id=8799

Andrei Alexandrescu  changed:

   What|Removed |Added

   Assignee|nob...@puremagic.com|lucia.mcojoc...@gmail.com

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[Issue 8799] Give example of Tuple mapped to a function

2016-10-16 Thread via Digitalmars-d-bugs 
https://issues.dlang.org/show_bug.cgi?id=8799

Andrei Alexandrescu  changed:

   What|Removed |Added

   Keywords||bootcamp
 CC||and...@erdani.com
 Blocks||16614

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[Issue 8799] Give example of Tuple mapped to a function

2014-04-23 Thread via Digitalmars-d-bugs 
https://issues.dlang.org/show_bug.cgi?id=8799

Andrej Mitrovic andrej.mitrov...@gmail.com changed:

   What|Removed |Added

 CC||andrej.mitrov...@gmail.com

--- Comment #2 from Andrej Mitrovic andrej.mitrov...@gmail.com ---
(In reply to Jesse Phillips from comment #1)
 Sorry I miss understood and did not remember that Tuples do auto expand. The
 actual request is mapping the Tuple to a function, as requested on SO:
 
 http://stackoverflow.com/questions/12888263/mapping-variadic-template-
 arguments-in-d

The following is an updated example. However, the problem is this feature isn't
really supported, it just happens to work. There's no telling whether it will
break at some point, so I think we shouldn't document it yet.

-
/**
Return a Tuple expression of $(D Func) being
applied to every tuple argument.
*/
template Map(alias Func, args...)
{
static auto ref ArgCall(alias Func, alias arg)() { return Func(arg); }

static if (args.length  1)
alias Map = TypeTuple!(ArgCall!(Func, args[0]), Map!(Func, args[1 ..
$]));
else
alias Map = ArgCall!(Func, args[0]);
}

///
unittest
{
import std.conv;

int square(int arg)
{
return arg * arg;
}

int refSquare(ref int arg)
{
arg *= arg;
return arg;
}

ref int refRetSquare(ref int arg)
{
arg *= arg;
return arg;
}

void test(int a, int b)
{
assert(a == 4, a.text);
assert(b == 16, b.text);
}

void testRef(ref int a, ref int b)
{
assert(a++ == 16, a.text);
assert(b++ == 256, b.text);
}

int a = 2;
int b = 4;

test(Map!(square, a, b));

test(Map!(refSquare, a, b));
assert(a == 4);
assert(b == 16);

testRef(Map!(refRetSquare, a, b));
assert(a == 17);
assert(b == 257);
}
-

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[Issue 8799] Give example of Tuple mapped to a function

2012-10-19 Thread d-bugmail 
http://d.puremagic.com/issues/show_bug.cgi?id=8799



--- Comment #1 from Jesse Phillips jesse.k.phillip...@gmail.com 2012-10-19 
11:28:57 PDT ---
Sorry I miss understood and did not remember that Tuples do auto expand. The
actual request is mapping the Tuple to a function, as requested on SO:

http://stackoverflow.com/questions/12888263/mapping-variadic-template-arguments-in-d

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