• pgtkda (2/2) Jun 26 2014 What does this symbol mean in relation to D?
• =?UTF-8?B?QWxpIMOHZWhyZWxp?= (19/21) Jun 26 2014 It can be used in two ways:
• pgtkda (2/24) Jun 26 2014 Thanks :)
• Chris (2/4) Jun 27 2014 ~ D means it's about the best language I've come across so far.

"pgtkda" <dlang byom.de> writes:

What does this symbol mean in relation to D?

~

=?UTF-8?B?QWxpIMOHZWhyZWxp?= <acehreli yahoo.com> writes:

On 06/26/2014 10:58 PM, pgtkda wrote:
 What does this symbol mean in relation to D?

 ~

It can be used in two ways:

1) When used as a unary operator, it means bitwise complement:

     assert(~0xaa55aa55 == 0x55aa55aa);

2) When used as a binary operator, it means concatenation:

     assert("hello" ~ " world" == "hello world");

     auto arr = [ 1, 2 ];
     assert(arr ~ 3 == [ 1, 2, 3 ]);

When used with assignment, it means appending:

     auto arr = [ 1, 2 ];
     arr ~= 3;

     assert(arr == [ 1, 2, 3 ]);

It can also be used in the special function name ~this(), which is the 
destructor of a struct or a class. (Related functions: 'static ~this()' 
and 'shared static ~this()')

Ali

[1] http://ddili.org/ders/d.en/bit_operations.html

[2] http://ddili.org/ders/d.en/arrays.html

[3] ddili.org/ders/d.en/special_functions.html

"pgtkda" <dlang byom.de> writes:

On Friday, 27 June 2014 at 06:33:07 UTC, Ali Çehreli wrote:
 On 06/26/2014 10:58 PM, pgtkda wrote:
 What does this symbol mean in relation to D?

 ~

 It can be used in two ways:

 1) When used as a unary operator, it means bitwise complement:

     assert(~0xaa55aa55 == 0x55aa55aa);

 2) When used as a binary operator, it means concatenation:

     assert("hello" ~ " world" == "hello world");

     auto arr = [ 1, 2 ];
     assert(arr ~ 3 == [ 1, 2, 3 ]);

 When used with assignment, it means appending:

     auto arr = [ 1, 2 ];
     arr ~= 3;

     assert(arr == [ 1, 2, 3 ]);

 It can also be used in the special function name ~this(), which 
 is the destructor of a struct or a class. (Related functions: 
 'static ~this()' and 'shared static ~this()')

 Ali

 [1] http://ddili.org/ders/d.en/bit_operations.html

 [2] http://ddili.org/ders/d.en/arrays.html

 [3] ddili.org/ders/d.en/special_functions.html

Thanks :)

"Chris" <wendlec tcd.ie> writes:

On Friday, 27 June 2014 at 05:58:14 UTC, pgtkda wrote:
 What does this symbol mean in relation to D?

 ~

~ D means it's about the best language I've come across so far.