Document Number: WG14 N680/J11 97-043 C9X Revision Proposal ===================== Title: scalbn Author: Fred J. Tydeman Author Affiliation: Tydeman Consulting Postal Address: 3711 Del Robles Dr., Austin, TX 78727-1814 E-mail Address: tydeman@tybor.com Telephone Number: +1 (512) 255-8696 Fax Number: +1 (512) 255-8696 Sponsor: X3J11 Date: 1997-04-26 Document History: Correction to WG14/N657 item 6. Proposal Category: __ Editorial change/non-normative contribution _Y Correction __ New feature __ Addition to obsolescent feature list __ Addition to Future Directions __ Other (please specify) ______________________________ Area of Standard Affected: __ Environment __ Language __ Preprocessor _Y Library __ Macro/typedef/tag name __ Function __ Header __ Other (please specify) ______________________________ Prior Art: X/Open XPG_______________________________________ Target Audience: All users. Related Documents (if any): WG14/N657 item 6_______________ Proposal Attached: _Y Yes __ No, but what's your interest? Abstract: Correct scalbn to be type generic on just the floating-point type. Proposal: In section 7.6.6.y The scalbn function. Change: scalbnf( float, int ) scalbn ( double, int ) scalbnl( long double, long int ) to: scalblnf( float, long int ) scalbln ( double, long int ) scalblnl( long double, long int ) An alternative is to change scalbn to: scalbnf( float, int ) scalbn ( double, int ) scalbnl( long double, int ) and add a new function: scalblnf( float, long int ) scalbln ( double, long int ) scalblnl( long double, long int ) Rationale: The current scalbn (i.e. what we approved at Kona) is not a true type generic function since the float and double versions take an int second argument, but the long double version takes a long int second argument. The proposal is to not add X/Open's scalbn (with its int second argument) to C9X, but, to instead add a scalbln with a long int second argument. The alternative is to add both scalbln and X/Open's scalbn. The three people on the review committee each had a different suggestion: leave it as is, add just the long int version, and add both int and long int versions.