GCC preprocessor bug ?

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1 total messages Started by Todd Clayton Fri, 08 Jan 1993 02:10

#1607

Author: Todd Clayton
Date: Fri, 08 Jan 1993 02:10

38 lines
1258 bytes

I'm not sure this is a bug, but Sun cc behaves differently than gcc on this
simple testcase. I thought it would be best to report it and let the
pros figure it out. In the simple testcase below I thought "-x" should 
should be treated as separte preprocessing tokens in the macro "Blk".
That is "-" and "x" are seperate tokens and should not be merged as
gcc does.

-Todd

oconee:tmp% gcc -v
Reading specs from /usr/local/lib/gcc-lib/sparc-sun-sunos5.1/2.3.3/specs
gcc version 2.3.3
oconee:tmp% cat foo.c
#define Blk(x)          (-x)


foo()
{
	Blk(-1);
}
oconee:tmp% gcc -E foo.c
# 1 "foo.c"

foo()
{
	         (--1) ;
}
oconee:tmp% cc -E foo.c
# 1 "foo.c"
# 6


foo()
{
	 ( - - 1 ) ;
}
#ident "acomp: (CDS) SPARCompilers 2.0.1 03 Sep 1992"
oconee:tmp%

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