Article View: gnu.gcc.bug
Article #1138shift count warning
From: Michael Shapiro
Date: Mon, 14 Sep 1992 16:52
Date: Mon, 14 Sep 1992 16:52
22 lines
929 bytes
929 bytes
The following short program gives a warning message I think it shouldn't.
I wanted to pass this by you to see why it is giving me the warning. The
compiled code does what it is supposed to do:
main()
{
unsigned char b;
int x,y;
x = 511;
y = 1;
b = (unsigned char )(x - (y<<8));
printf ("%d\n", (int)b);
}
# gcc main.c
main.c: In function `main':
main.c:9: warning: shift count exceeds width of value shifted
# a.out
255
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<199209141652.AA24234@zorro.cecer.army.mil>Path:
arc1-ca.pugleaf.net!sparky!uunet!know!hri.com!spool.mu.edu!sol.ctr.columbia.edu!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!zorro.cecer.army.mil!shapiroShow Full Headers
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Path: arc1-ca.pugleaf.net!sparky!uunet!know!hri.com!spool.mu.edu!sol.ctr.columbia.edu!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!zorro.cecer.army.mil!shapiro From: shapiro@zorro.cecer.army.mil (Michael Shapiro) Newsgroups: gnu.gcc.bug Subject: shift count warning Message-ID: <199209141652.AA24234@zorro.cecer.army.mil> Date: 14 Sep 92 16:52:22 GMT Sender: gnulists@ai.mit.edu Distribution: gnu Organization: GNUs Not Usenet Lines: 22 Approved: bug-gcc@prep.ai.mit.edu