Need clear error msg. (template instantiating)
Moritz Warning
moritzwarning at web.de
Sat Feb 28 14:16:48 PST 2009
On Sat, 28 Feb 2009 19:41:59 +0000, Moritz Warning wrote:
> On Sat, 28 Feb 2009 13:36:25 -0500, CLXX wrote:
>
>> I need clear error-messages of compiling. See this code.
>>
>> // example.d
>> import std.conv: to;
>> void main( ){
>> S s;
>> to!( int )( s ); // 'to' does not support struct-argument.
>> }
>> struct S{
>> }
>>
>> 'to' cannot convert 'S' to 'int', so that this is error. Then I got
>> mysterious messages.
>>
>> "src\phobos\std\conv.d(344): Error: cannot implicitly convert
>> expression (value) of type S to int" "src\phobos\std\conv.d(206):
>> template instance std.conv.toImpl!(S,int) error instantiating"
>> "src\phobos\std\conv.d(4): template instance std.conv.to!(int).to!(S)
>> error instantiating"
>>
>> We know 'std.conv.d' has no error, and assume 'example.d' has some. The
>> problem is 'std.conv.d' seems to have errors.
>>
>> The message should be as follows.
>>
>> "example.d(5): template instance to!(S)(int,S) does not match template
>> declaration."
>>
>> Thank you for your reading.
>
> What do you expect the integer from such a struct to be? What you are
> trying to do makes no sense to me. The compiler tells you the same.
Nvm, I'm too tired today.
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