Re: lib/45020: strtold(3) does not detect NaN

[christos%zoulas.com@localhost (Christos Zoulas)]

On Jun 4,  9:55am, jruohonen%iki.fi@localhost (Jukka Ruohonen) wrote:
-- Subject: lib/45020: strtold(3) does not detect NaN

| >Description:
| 
| The saga of strtod(3) bugs continues: the long double variant does not
| detect NaN on amd64.
| 
| >How-To-Repeat:
| 
|       ...
| 
|       long double ld;
| 
|       ld = strtold("NaN", NULL);
| 
|       if (isnan(ld) == 0)
|               printf("fail");
| 
|       ...

Looks like a compiler bug to me. Either use -ffloat-store, or call isnanl()
directly.

christos