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September 13, 2015 alias for regular expressions | ||||
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Some special interest thingamabob: I've tried to redefine "else if" as "elif" using "alias elif = else if;". No matter what to no avail. I know this is probably useless fancy stuff, but is there any way to get this done without much ado? |
September 13, 2015 Re: alias for regular expressions | ||||
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Posted in reply to Thunderbird | On Sunday 13 September 2015 21:47, Thunderbird wrote:
> Some special interest thingamabob:
>
> I've tried to redefine "else if" as "elif" using "alias elif = else if;". No matter what to no avail.
>
> I know this is probably useless fancy stuff, but is there any way to get this done without much ado?
no
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September 13, 2015 Re: alias for regular expressions | ||||
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Posted in reply to anonymous | On Sunday, 13 September 2015 at 19:51:38 UTC, anonymous wrote:
> On Sunday 13 September 2015 21:47, Thunderbird wrote:
>
>> Some special interest thingamabob:
>>
>> I've tried to redefine "else if" as "elif" using "alias elif = else if;". No matter what to no avail.
>>
>> I know this is probably useless fancy stuff, but is there any way to get this done without much ado?
>
> no
Thanks for your quick reply :)
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September 14, 2015 Re: alias for regular expressions | ||||
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Posted in reply to Thunderbird | On Sunday, 13 September 2015 at 19:52:20 UTC, Thunderbird wrote:
> Thanks for your quick reply :)
To expand on that, alias in D is nothing like the C macro preprocessor. D specifically disallows tricks like `#define true false`. In D, aliases are just another name for a symbol. Ex:
struct Test
{
int n;
float f;
}
alias IntFloat = Test; //IntFloat is just another name for Test
Test t = Test(0, 1.0);
IntFloat inf = IntFloat(0, 1.0);
//Test and IntFloat are NOT separate types.
//Use std.typecons.Typedef for that
assert(t == inf);
assert(is(typeof(t) == typeof(inf));
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September 15, 2015 Re: alias for regular expressions | ||||
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Posted in reply to Meta | On Monday, 14 September 2015 at 07:11:38 UTC, Meta wrote:
> On Sunday, 13 September 2015 at 19:52:20 UTC, Thunderbird wrote:
>> Thanks for your quick reply :)
>
> To expand on that, alias in D is nothing like the C macro preprocessor. D specifically disallows tricks like `#define true false`. In D, aliases are just another name for a symbol. Ex:
>
> struct Test
> {
> int n;
> float f;
> }
>
> alias IntFloat = Test; //IntFloat is just another name for Test
>
> Test t = Test(0, 1.0);
> IntFloat inf = IntFloat(0, 1.0);
>
> //Test and IntFloat are NOT separate types.
> //Use std.typecons.Typedef for that
> assert(t == inf);
> assert(is(typeof(t) == typeof(inf));
Thanks for elaborating!
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