ado@elsie.UUCP (Arthur David Olson) (02/23/85)
Index: lib/mip/trees.c Fix
Description:
The C compiler can't compile some statements that take the address of
a function of type void.
Repeat-By:
echo "extern void subr(); void (* ptr)() = subr;" > try.c
cc -c try.c
An error message is produced and "try.o" is not created.
Fix:
Most of the fix is to ensure that when the "-p" option is used with
"lint" it will produce appropriate warnings.
The file is named "/usr/src/cmd/mip/trees.c" in 4.1bsd.
The trade secret status of the code precludes a clearer posting.
ed lib/mip/trees.c
/^moditype/;/case TVOID/a
#ifndef OLDVERSION
return MPTR;
#endif
.
/^opact/;/case GE/a
#ifndef OLDVERSION
if (pflag && (mt1 == MPTR || mt2 == MPTR))
werror("pre-'85 BSD compilers can't take address of function of type void");
#endif
.
/^opact/;/case COLON/a
#ifndef OLDVERSION
if (pflag && (mt1 == MPTR || mt2 == MPTR))
werror("pre-'85 BSD compilers can't take address of function of type void");
#endif
.
/^opact/;/case CAST/a
#ifndef OLDVERSION
if (pflag && (mt1 == MPTR || mt2 == MPTR))
werror("pre-'85 BSD compilers can't take address of function of type void");
#endif
.
w
q
--
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