ultrix man page for dtoi

ftoi(3) 						     Library Functions Manual							   ftoi(3)

Name
       ftoi, itof, dtoi, itod, gtoi, itog - convert floating values between VAX and IEEE format

Syntax
       int ftoi(value)
	   float *value;

       int itof(value)
	   float *value;

       int dtoi(value)
	   double *value;

       int itod(value)
	   double *value;

       int gtoi(value)
	   double *value;

       int itog(value)
	   double *value;

Description
       The following C library functions convert floating values between VAX and IEEE formats.

       The  function  converts the specified VAX ffloat number to IEEE single-precision format.  It returns zero if successful and nonzero without
       performing the conversion if not successful (for example, underflow).

       The function converts the specified IEEE single-precision number to VAX ffloat format.  It returns zero if successful and  nonzero  without
       performing the conversion if not successful (for example, overflow).

       The  function  converts the specified VAX dfloat number to IEEE double-precision format.  It returns zero if successful and nonzero without
       performing the conversion if not successful (for example, underflow).

       The function converts the specified IEEE double-precision number to VAX dfloat format.  It returns zero if successful and  nonzero  without
       performing the conversion if not successful (for example, underflow or overflow).

       The  function  converts the specified VAX gfloat number to IEEE double-precision format.  It returns zero if successful and nonzero without
       performing the conversion if not successful (for example, underflow).

       The function converts the specified IEEE double-precision number to VAX gfloat format.  It returns zero if successful and  nonzero  without
       performing the conversion if not successful (for example, underflow).

																	   ftoi(3)