1 /* Test typedef redeclaration in C1X. */
2 /* { dg-do compile } */
3 /* { dg-options "-std=c1x -pedantic-errors" } */
5 /* C1X permits typedefs to be redeclared to the same type, but not to
6 different-but-compatible types, and not when the type is variably
16 enum e { E1 = 0, E2 = INT_MAX, E3 = -1 };
18 typedef enum e TE; /* { dg-message "previous declaration" } */
19 typedef int TE; /* { dg-error "with different type" } */
27 typedef TI2 IA[]; /* { dg-message "previous declaration" } */
29 typedef TI A2[2]; /* { dg-message "previous declaration" } */
30 typedef IA A2; /* { dg-error "with different type" } */
32 typedef A3 IA; /* { dg-error "with different type" } */
35 typedef void F(TI); /* { dg-message "previous declaration" } */
36 typedef void F(enum e); /* { dg-error "with different type" } */
39 typedef TI G(void); /* { dg-message "previous declaration" } */
40 typedef enum e G(void); /* { dg-error "with different type" } */
43 typedef TI *P; /* { dg-message "previous declaration" } */
44 typedef enum e *P; /* { dg-error "with different type" } */
47 typedef void F2(); /* { dg-message "previous declaration" } */
48 typedef void F2(int); /* { dg-error "with different type" } */
55 typedef void FN(int (*p)[a]);
56 typedef void FN(int (*p)[b]);
57 typedef void FN(int (*p)[*]); /* { dg-message "previous declaration" } */
58 typedef void FN(int (*p)[1]); /* { dg-error "with different type" } */
59 typedef void FN2(int (*p)[a]);
60 typedef void FN2(int (*p)[b]);
61 typedef void FN2(int (*p)[*]); /* { dg-message "previous declaration" } */
62 typedef void FN2(int (*p)[]); /* { dg-error "with different type" } */
63 typedef int AV[a]; /* { dg-message "previous declaration" } */
64 typedef int AV[b-1]; /* { dg-error "redefinition" } */
65 typedef int AAa[a]; /* { dg-message "previous declaration" } */
67 typedef AAa *VF(void); /* { dg-message "previous declaration" } */
68 typedef AAb *VF(void); /* { dg-error "redefinition" } */
69 typedef AAa AAa; /* { dg-error "redefinition" } */