wsextended_double (C Function)

is a WSTP type representing an extended-precision floating-point number.


  • If your computer system and compiler support extended-precision floating-point numbers, then wsextended_double is a C long double.
  • On computer systems that do not support the C long double, wsextended_double is a struct{unsigned short arr[5];}.
  • wsextended_double is declared in the WSTP header file wstp.h.