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[taken from gcc-2.95.3-latest-cvs]

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1999-11-30  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
     * c-lex.c (yylex): With -Wtraditional, when the ANSI type of an
	    integer constant does not match the traditional type, limit the
	    warnings to cases where the base of the type is ten.


git-svn-id: file:///srv/svn/repos/haiku/trunk/buildtools@9587 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Oliver Tappe 2004-10-28 18:20:55 +00:00
parent 0933b55616
commit ab0de848b4
2 changed files with 11 additions and 1 deletions
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6
gcc/gcc/c-lex.c
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@ -1812,7 +1812,11 @@ yylex ()
type = flag_traditional ? traditional_type : ansi_type;
if (warn_traditional && traditional_type != ansi_type)
/* We assume that constants specified in a non-decimal
base are bit patterns, and that the programmer really
meant what they wrote. */
if (warn_traditional && base == 10
&& traditional_type != ansi_type)
{
if (TYPE_PRECISION (traditional_type)
!= TYPE_PRECISION (ansi_type))

6
gcc/gcc/invoke.texi
View File

@ -1694,6 +1694,12 @@ A @code{switch} statement has an operand of type @code{long}.
@item
A non-@code{static} function declaration follows a @code{static} one.
This construct is not accepted by some traditional C compilers.
@item
The ANSI type of an integer constant has a different width or signedness
from its traditional type. This warning is only issued if the base of
the constant is ten. I.e. hexadecimal or octal values, which typically
represent bit patterns, are not warned about.
@end itemize
@item -Wundef