Issue 4473 - WG21 LWG Issues
Title
<cfloat> should be specified not to contain all macros in <float.h>
Status
new
Section
[cfloat.syn]
Submitter
Jan Schultke

Created on 2025-11-12.00:00:00 last changed 3 weeks ago

Messages

msg15744 (view)
Date: 2025-11-15.15:57:22

Proposed resolution:

This wording is relative to N5014.

  1. Modify [cfloat.syn] as indicated:

    -1- The header <cfloat> defines all macros the same as the C standard library header <float.h>, except that it does not define any macros specifying characteristics of C decimal floating types or C interchange floating types.

msg15743 (view)
Date: 2025-11-15.15:57:22

Consider [climits.syn] paragraph 1:

The header <climits> defines all macros the same as the C standard library header <limits.h>, except that it does not define the macro `BITINT_MAXWIDTH`.

Similarly, <cfloat> is missing various macros from C's <float.h>, but this is not stated.

History
Date User Action Args
2025-11-15 15:57:22adminsetmessages: + msg15744
2025-11-12 00:00:00admincreate