[5046] in Athena Bugs
RTPC hc2.1y extern breaks struct
daemon@ATHENA.MIT.EDU (Mark W. Eichin)
Sun Jun 3 21:09:34 1990
Date: Sun, 3 Jun 90 21:09:21 -0400
From: Mark W. Eichin <eichin@ATHENA.MIT.EDU>
To: bugs@ATHENA.MIT.EDU
/* hmm... */
struct y1;
struct y2;
extern struct y1 v1[7]; /* NOTE: >>y1<< is important here, not v1 */
struct y1 {
int x;
};
struct y2 {
int x;
};
struct y1 v1[7]; /* this ends up undefined below */
struct y1 w1[7]; /* >>as does this<<, implying that the _type_, not the
variable, is broken */
struct y2 v2[7]; /* these two are fine. */
struct y2 w2[7];
/* the end */
/*
% cc -c dck..c ; nm -pog dck..o
dck..o:00000000 A .oVncs
dck..o:00000000 A .oVhc2.1y
dck..o: U _v1
dck..o: U _w1
dck..o:0000001c C _v2
dck..o:0000001c C _w2
*/
