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10446f5d9f
On powerpc64le, long double can currently take two formats: the same as double (-mlong-double-64) or IBM Extended Precision (default with -mlong-double-128 or explicitly with -mabi=ibmlongdouble). The internal implementation of scanf-like functions is aware of these possibilites and, based on the format in use, properly calls __strtold_internal or __strtod_internal, saving the return to a variable of type double or long double. When library support for TS 18661-3 was added to glibc, a new function, __strtof128_internal, was added to enable reading of floating-point values with IEEE binary128 format into the _Float128 type. Now that powerpc64le is getting support for its third long double format, and taking into account that this format is the same as the format of _Float128, this patch extends __vfscanf_internal and __vfwscanf_internal to call __strtof128_internal or __wcstof128_internal when appropriate. The result gets saved into a variable of _Float128 type. Tested for powerpc64le.