Thread View: gnu.gcc.bug
1 messages
1 total messages
Started by Hugh Sasse
Thu, 18 Apr 1996 00:00
macros handled wrong??
Author: Hugh Sasse
Date: Thu, 18 Apr 1996 00:00
Date: Thu, 18 Apr 1996 00:00
27 lines
993 bytes
993 bytes
The following short program:
/* To see what happens about macros involving chars */
#include <stdio.h>
#define OUTPUT(a) putchar('a')
main(argc, argv)
int argc;
char *argv[];
{
OUTPUT(x);
return(0);
};
produces the output
a
under gcc but
x
under Sun's Solaris 1.1 (Sunos 4.1.3) cc compiler.
This means that /usr/include/ioccom.h will be interpreted differently
for these compilers, in particular the definition:
#define _IOW(x,y,t) (_IOC_IN|((sizeof(t)&_IOCPARM_MASK)<<16)|('x'<<8)|y)
How should I proceed with this?
Hugh
hgs@dmu.ac.uk
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