[LLVMbugs] [Bug 20876] -Wformat should maybe allow precision for %Z

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Mon Sep 8 08:51:37 PDT 2014


Nico Weber <nicolasweber at gmx.de> changed:

           What    |Removed                     |Added
             Status|NEW                         |RESOLVED
         Resolution|---                         |WONTFIX

--- Comment #5 from Nico Weber <nicolasweber at gmx.de> ---
#include <stdio.h>
#include <string.h>

struct ANSI_STRING {
  unsigned short len;
  unsigned short maxlen;
  char* buf;

int main() {
  char buf[] = "hello there";
  ANSI_STRING s = { strlen(buf), sizeof(buf), buf };
  printf("%4.4Z\n", &s);
  printf("%4.4s\n", s.buf);

has output

hello there

So precision is in fact ignored for %Z arguments. So clang's right here, and
chromium's code is incorrect.

You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20140908/b8bfd89e/attachment.html>

More information about the llvm-bugs mailing list