referencing variables declared in an external c file

[Frank Benoit]

llee schrieb:
> BCS Wrote:
>> somefile.c
>> extern FILE* yyin;
>>
>> header.d:
>> extern(C) FILE* yyin;
>>
>> use.d
>> import header;
>> void main(){writef("%x\n", cast(void*)yyin);}
>>
>>
>> gcc -c somefile.c;
>> dmd -c use.d;
>> dmd  use.o somefile.o
>>
>>
> it works. 
> 

you can link the file if you use

extern extern(C) FILE* yyin;

a dangerous pitfall to forget the first extern.