Submitter:CFP group
Submission Date: 2021-01-24
Document: WG14 N2640
Title: N2640: Missing DEC_EVAL_METHOD
Reference Documents: N2596, N2546

Summary: DEC_EVAL_METHOD should be added some places.

This is a follow-on to N2546 that added DEC_EVAL_METHOD to one footnote. This is being done to address a comment about N2546.

Since decimal floating-point and DEC_EVAL_METHOD (5.2.4.2.3p2) have been added to C23, some notes that mention FLT_EVAL_METHOD should be changed to also mention DEC_EVAL_METHOD.

• 6.5.16.2 Compound assignment

  In the Note in paragraph 5, change

  For example, if Annex F is in effect, the floating types involved have IEC 60559 formats, and FLT_EVAL_METHOD is 0, ...

  to

  For example, if Annex F is in effect, the floating types involved have IEC 60559 binary formats, and FLT_EVAL_METHOD is 0, ...

• F.10.14 Comparison macros

  Change

  The standard wide evaluation methods characterized by FLT_EVAL_METHOD equal to 1 or 2 (5.2.4.2.2), do not convert operands of relational operators to their semantic types.

  to:

  The standard wide evaluation methods characterized by FLT_EVAL_METHOD and DEC_EVAL_METHOD equal to 1 or 2 (5.2.4.2.2, 5.2.4.2.3), do not convert operands of relational operators to their semantic types.