CRE Programmer's Guide

Math Functions

Common Run-Time Environment (CRE) Programmer’s Guide—528146-004

7-20

Split

The Split function separates a 64-bit floating-point number into integral and fractional

parts.

number

is the number to separate into an integral and fractional part.

integral_part

is a reference parameter into which Split stores the integral part of number.

Return Value

Split returns the fractional part of number.

Example

REAL(64) r;

REAL(64) s;

r := RTL_Split_Real64_(1.6L0, s); ! r gets 0.6L0

! s gets 1.0L0

r := RTL_Split_Real64_(-2.7L0, s); ! r gets -0.7L0

! s gets -2.0L0

Sqrt

The Sqrt functions return the square root of a number.

number

is the number whose square root is returned.

Return Value

The Sqrt functions return the square root of number.

REAL(64) PROC RTL_Split_Real64_(number,integral_part);

REAL(64) number; ! in

REAL(64) .EXT integral_part; ! out TNS only

REAL(32) PROC { CRE_Sqrt_Real32_ } ( number );

{ RTL_Sqrt_Real32_ }

REAL(32) number; ! TNS only

REAL(64) PROC { CRE_Sqrt_Real64_ } ( number );

{ RTL_Sqrt_Real64_ }

REAL(64) number; ! TNS only