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Re: [PATCH] http: fix some printf format warnings on 32-bit builds

From
Torsten Bögershausen <tboegi@web.de>
Date
Nov 12, 2015, 05:27 UTC
Message-ID
<5644232C.2060700@web.de>
In-Reply-To
<5643ABF0.5080207@ramsayjones.plus.com>
 >Ah. OK, so %ld for long and %lld for long long, I suppose. Only if you 
have a system that's support it.
Linux does, Windows not.
>Hmm, not that it matters, but I wonder what the PRId64 macro is. ;-)
It's "I64d" for Windows, and "lld" for all Gnu based systems and others,

When you do printf("%lld %ld", long_long_var, long_var), the "printf runtime" under Windows will treat "%lld" as "%ld", and print the lower part of long_long_var. And will not pull a long long from stack, but a long, resulting i all kinds of confusion

So whenever a long long is printed, I can warmly recommend to use
PRId64
Previous: Ramsay JonesNext: Ramsay Jones
Message 17 of 19 in “http: fix some printf format warnings on 32-bit builds”
  1. http: fix some printf format warnings on 32-bit buildsRamsay Jones, Nov 11, 2015
  2. Eric SunshineNov 11, 2015
  3. Stefan BellerNov 11, 2015
  4. Lars SchneiderNov 11, 2015
  5. Stefan BellerNov 11, 2015
  6. Ramsay JonesNov 11, 2015
  7. Lars SchneiderNov 13, 2015
  8. Eric SunshineNov 13, 2015
  9. Torsten BögershausenNov 13, 2015
  10. Lars SchneiderNov 13, 2015
  11. Ramsay JonesNov 13, 2015
  12. Lars SchneiderNov 14, 2015
  13. Ramsay JonesNov 11, 2015
  14. Eric SunshineNov 11, 2015
  15. Jeff KingNov 11, 2015
  16. Ramsay JonesNov 11, 2015
  17. Torsten BögershausenNov 12, 2015
  18. Ramsay JonesNov 12, 2015
  19. Andreas SchwabNov 12, 2015

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