The following issue has been SUBMITTED. ====================================================================== http://austingroupbugs.net/view.php?id=1078 ====================================================================== Reported By: Florian Weimer Assigned To: ====================================================================== Project: 1003.1(2013)/Issue7+TC1 Issue ID: 1078 Category: System Interfaces Type: Clarification Requested Severity: Editorial Priority: normal Status: New Name: Florian Weimer Organization: Red Hat User Reference: Section: isdigt, isxdigit Page Number: unknown Line Number: unknown Interp Status: --- Final Accepted Text: ====================================================================== Date Submitted: 2016-09-16 17:54 UTC Last Modified: 2016-09-16 17:54 UTC ====================================================================== Summary: isdigit, isxdigit locale dependance Description: ISO C99 and C11 are very explicit about the set of decimal digits and hexadecimal digits (0123456789 and 0123456789ABCDEFabcdef). There is no expectation that the result of these functions is locale-dependent, unlike isalpha (for example). Any locale-dependence of the results would thus violate C99/C11 semantics.
isalnum is affected by this as well because it is specified as the union of isalpha and isdigit in IS C. This is probably a defect in ISO C. Desired Action: “The isdigit function returns true if the argument refers to a character in the range from '0' to '9' (inclusive.” “The isxdigit function returns true if the argument is a decimal digit according to the isdigit function, or if the argument refers to one of the characters 'A', 'B', 'C', 'D', 'E', 'F', 'a', 'b', 'c', 'd', 'e', 'f'.” If so desired, any restrictions on the digit and xdigit character classes could be lifted, and applications could query them using the isdigit_l and isxdigit_l functions. ====================================================================== Issue History Date Modified Username Field Change ====================================================================== 2016-09-16 17:54 Florian Weimer New Issue 2016-09-16 17:54 Florian Weimer Name => Florian Weimer 2016-09-16 17:54 Florian Weimer Organization => Red Hat 2016-09-16 17:54 Florian Weimer Section => isdigt, isxdigit 2016-09-16 17:54 Florian Weimer Page Number => unknown 2016-09-16 17:54 Florian Weimer Line Number => unknown ======================================================================
