Name
__strtod_internal -- alias for strtod
Synopsis
| double __strtod_internal(const char *__nptr,
                         char **__endptr,
                         int __group); | 
Description
The __GROUP argument must be 0 or the behavior is undefined. 
__strtod_internal(__nptr, __endptr, __group) has the same specification as strtod(__nptr, __endptr).
__strtod_internal is not in the source standard; it is only in the binary standard.