I can crash program (core.exception.InvalidMemoryOperationError) by using __FUNCTION__ in a class ctor

[Steven Schveighoffer]

On 1/18/19 10:35 AM, Steven Schveighoffer wrote:

> 
> https://github.com/blachlylab/dhtslib/blob/master/source/dhtslib/htslib/hts_log.d#L94 
> 
> 
> That is your problem. toStringz is going to attempt to allocate using 
> the GC. Allocating during a GC collection causes an 
> InvalidMemoryOperationError.
> 
> Take that out of your destructor, and you should not cause that error.
> 
> Alternatively, fix the logger so it doesn't use the GC.

If I had to guess why __FUNCTION__ causes it and others do not, then I 
would say it's because toStringz has particular cases where it DOESN'T 
allocate, and that depends completely on the length of the string.

https://github.com/dlang/phobos/blob/master/std/string.d#L364-L365

-Steve