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From: Joel Sherrill <joel.sherrill@oarcorp.com>
To: "newlib@sourceware.org" <newlib@sourceware.org>
Subject: Dead Code
Date: Wed, 15 Mar 2017 15:49:00 -0000	[thread overview]
Message-ID: <047903e6-8161-3c01-0208-13123f36196f@oarcorp.com> (raw)

Hi

I think Coverity spotted a case where an || should be an &&
in libc/string/strsignal.c. What does everyone else think?

  74#if defined(SIGRTMIN) && defined(SIGRTMAX)
    	cond_at_most: Condition signal >= 27, taking false branch. Now the value of signal is at most 26.
    	at_most: At condition signal <= 31, the value of signal must be at most 26.
    	dead_error_condition: The condition signal <= 31 must be true.
  75  if ((signal >= SIGRTMIN) || (signal <= SIGRTMAX)) {
  76    siprintf (buffer, "Real-time signal %d", signal - SIGRTMIN);
  77    return buffer;
  78  }
  79#endif
  80
    	
CID 175333 (#1 of 1): Logically dead code (DEADCODE)
dead_error_line: Execution cannot reach this statement: switch (signal) {

   case 1:....

--joel

             reply	other threads:[~2017-03-15 15:49 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-15 15:49 Joel Sherrill [this message]
2017-03-15 16:51 ` Craig Howland
2017-03-15 16:59   ` Joel Sherrill

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