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Some lines about the .capacity property

http://www.reddit.com/r/programming/comments/30wj8g/managing_cs_complexity_or_learning_to_enjoy_c/cpx41ix

a++ is rewritten ++a if the result isn't used.

A little known feature
http://dlang.org/template.html

It seems way too optimistic to use >= anywhere in a DUB file. I'd like to write about it.

With cast(void*)object as user-data.

Need copypasta code

aa.get(key, default) thanks yazd.

..d-idioms> dub
Building dmarkdown 0.2.0 configuration "library", build type debug.
Running dmd...
C:\Users\Dmitry\AppData\Roaming\dub\packages\dmarkdown-.2.0\source\dmarkdown\markdown.d(275): Error: no property 'joiner' for type 'Take!(Repeat!string)'
C:\Users\Dmitry\AppData\Roaming\dub\packages\dmarkdown-.2.0\source\dmarkdown\markdown.d(278): Error: no property 'map' for type 'Block[]'
FAIL C:\Users\Dmitry\AppData\Roaming\dub\packages\dmarkdown-0.2.0.dub\build\library-debug-windows-x86-dmd_2067-1564E97DABD8A03ACA3F1B08A8738B6E\ dmarkdown staticLibrary
Error executing command run: dmd failed with exit code 1.

• vibe.d's CloneFunction

https://github.com/rejectedsoftware/vibe.d/blob/master/source/vibe/internal/meta/codegen.d#L272

Ensure a string mixin encodes the right type of function

• vibe.d's mixin template foreach
  https://github.com/rejectedsoftware/vibe.d/blob/master/source/vibe/web/rest.d#L832
• DUB's dup using allMembers

Looks like a way to throw in @nogc code.

ubyte[__traits(classInstanceSize, YourClass)] from This week in D

It's on the dlang.org site but I've never stumbled upon it previously.

What they are, what they eat

this is too weird and useful to go down unnoticed: http://forum.dlang.org/thread/[email protected]#post-kwggroyzniavchsdqtka:40forum.dlang.org

XP reports say it's problematic.

Unlike C and C++

http://forum.dlang.org/post/[email protected]

CyberShadow/ae#14

• recursive ADT trick
• pattern matching example

TODO Some Phobos things are better be highlighted a bit
enforce
Unqual

Like version(assert)

http://p0nce.github.io/d-idioms/#Optimal-AA-lookup has mispelled doesn't as doens't in "The .get builtin property can also be used. It provides a default value when the key doens't exist"

We keep hearing that the GC makes soft real-time impossible, that is false.

Almost a secret feature, need more awareness

It's not clear to everybody, also function signatures with static arrays look the same as in C but have different semantics.

I think the last sentence here is wrong, or at least wrong by omission.

http://p0nce.github.io/d-idioms/#Falsey-values

When to use and get the maximum value out of @disable this(this).
Which implies I know it.

• Signed overflow is not UB
• unary + and - do not promote integers!

http://forum.dlang.org/post/[email protected]

This is a common need when actually using @nogc

• if you don't trigger manually then it takes 30 minutes
• avoid leading zeroes

Not everyone know about package.d or public import

If i am not the only one who needs to look up this pattern everytime again this idiom maybe useful for others:

auto removeElement(R,N)(R _haystack, N _needle){
    import std.algorithm:countUntil,remove;

    auto index = _haystack.countUntil(_needle);

    return (index != -1) ? _haystack.remove(index) : _haystack;
}

usage:

auto arr = [1,5,10];
arr = arr.removeElement(5);
assert(arr == [1,10]);

When to use it, what does it eat.

A detailed description of the traps associated with class destructors would be right:

• no allocation
• could be called by the GC, or not
• don't rely on members, etc

Walter explained this many times, and I feel this is indeed very important.

Writing a dub.json file fast is useful from times to times. The fastest I've found is:

{
    "name": "program_name"
}

then have a file source/main.d

Useful whenever using range, could be in Phobos Gems.

• Site don't work on mobile

http://forum.dlang.org/post/[email protected]

I agree with that
http://forum.dlang.org/post/[email protected]