when would a mangle name be prefixed with "d" ?

[davidl]

the mangle name only get 'd' prefixed when i have
default:
//    version(DEBUG) writefln(`hello`); // uncomment this would result bad  
mangle name
     assert(0);

while i didn't manage to have a smaller case reproduce it.

>
> when would a mangle name be prefixed with "d" ?
> it's weird my app compiles and runs without -version=DEBUG
> few version(DEBUG) in my app.
> and with -version=DEBUG the source compiles, while linker emits
>   Error 42: Symbol Undefined  
> _D7dparser3dmd5Lexer5Lexer6numberMFPS7dparser3dmd5Token5TokenZE7dparser3dmd6Tokens3TOK5FLAGS6__initZ
>
> take a look into the obj file, i find the symbol is mangled as
>
> d_D7dparser3dmd5Lexer5Lexer6numberMFPS7dparser3dmd5Token5TokenZE7dparser3dmd6Tokens3TOK5FLAGS6__initZ
>
> an extra d prefixed, any idea?



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