cant@mrmarx.msc.com (Jim Cant) (05/03/91)
Some questions about compiling under AIX 3.0 on the RS 6000:
I would like the compiler to warn me whenever a function call does not match
it's prototype and I can't figure out how to do it. I have tried the -extchk
option, -langlvl=ansi, and the xlc compiler. Can I get this kind of
information?
The compiler does complain if a function definition does not match it's
declaration in the prototype but I still need warning for the invocations;
it would save LOTS of debugging. (I am porting a lot of code for which the
prototypes have changed.)
Below is sample code of the sort I need warnings from:
By the way, what does -extchk option do? I get the following message from
the following code compiled with "cc -extchk tmp.c":
0706-244 ERROR: No entry point or export symbols were found
following garbage collection.
/* Function prototypes */
int funcShort(long l);
int funcCPP(char ** ppc);
int funcShort(long l)
{
return (1);
}
int funcCPP(char ** cpp)
{
return (1);
}
main()
{char * pChar;
char ** ppChar;
short Short;
long Long;
funcShort(Short);
funcShort(Long); /*compiler should warn*/
funcShort((short)Long); /*compiler should accept*/
funcCPP(ppChar);
funcCPP(ppChar); /*compiler should warn*/
funcCPP( (char **)pChar); /*compiler should accept*/
}
Any help or advice will be greatly appreciated.
Thanks a priori.
Jim Cant, cant@mrmarx.msc.com I don't care what the company thinks
Mainstream Software Corp. about what I think or say nearly as much
411 Waverly Oaks Road I care about how my boy responds to same.
Waltham MA 02154, 617-894-3399