[LLVMbugs] [Bug 12837] New: Detect "%Zu" printf format specifier and suggest "%zu"

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Tue May 15 13:41:46 PDT 2012


             Bug #: 12837
           Summary: Detect "%Zu" printf format specifier and suggest "%zu"
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Frontend
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: matthewbg at google.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Apparently some old libc used 'Z' as a length modifier for size_t printf
arguments. C99 standardized 'z' for this purpose; we should detect the former
and give a nice note suggesting the latter. (Right now we just say "invalid
conversion specifier 'Z'".)

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