[llvm-bugs] [Bug 34330] New: error: use of undeclared identifier 'isascii' while compiling strstream.cpp

via llvm-bugs llvm-bugs at lists.llvm.org
Fri Aug 25 15:05:16 PDT 2017


            Bug ID: 34330
           Summary: error: use of undeclared identifier 'isascii' while
                    compiling strstream.cpp
           Product: libc++
           Version: 5.0
          Hardware: PC
                OS: other
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: Catherine_Moore at mentor.com
                CC: llvm-bugs at lists.llvm.org, mclow.lists at gmail.com

Created attachment 19043
  --> https://bugs.llvm.org/attachment.cgi?id=19043&action=edit
Build log file with error messages

I'm running into a problem building libcxx in conjunction with newlib.  The
attached log file contains the error messages.
The problem appears to be that isascii is referenced in __locale, but the
include file cctype doesn't contain a definition.

__locale:        return isascii(__c) ? (__tab_[static_cast<int>(__c)] & __m)
!=0 : false;
__locale:            *__vec = isascii(*__low) ?
__tab_[static_cast<int>(*__low)] : 0;
__locale:            if (isascii(*__low) && (__tab_[static_cast<int>(*__low)] &
__locale:            if (!(isascii(*__low) && (__tab_[static_cast<int>(*__low)]
& __m)))

A definition of isascii can be found in newlib's ctype.h.  What's the best way
to fix this?


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