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689 |
jeremybenn |
/* Test typedef redeclaration in C1X. */
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/* { dg-do compile } */
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/* { dg-options "-std=c1x -pedantic-errors" } */
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/* C1X permits typedefs to be redeclared to the same type, but not to
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different-but-compatible types, and not when the type is variably
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modified. */
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#include <limits.h>
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typedef int TI;
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typedef int TI2;
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typedef TI2 TI;
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typedef TI TI2;
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enum e { E1 = 0, E2 = INT_MAX, E3 = -1 };
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typedef enum e TE;
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typedef enum e TE; /* { dg-message "previous declaration" } */
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typedef int TE; /* { dg-error "with different type" } */
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struct s;
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typedef struct s TS;
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struct s { int i; };
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typedef struct s TS;
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typedef int IA[];
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typedef TI2 IA[]; /* { dg-message "previous declaration" } */
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typedef int A2[2];
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typedef TI A2[2]; /* { dg-message "previous declaration" } */
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typedef IA A2; /* { dg-error "with different type" } */
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typedef int A3[3];
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typedef A3 IA; /* { dg-error "with different type" } */
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typedef void F(int);
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typedef void F(TI); /* { dg-message "previous declaration" } */
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typedef void F(enum e); /* { dg-error "with different type" } */
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typedef int G(void);
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typedef TI G(void); /* { dg-message "previous declaration" } */
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typedef enum e G(void); /* { dg-error "with different type" } */
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typedef int *P;
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typedef TI *P; /* { dg-message "previous declaration" } */
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typedef enum e *P; /* { dg-error "with different type" } */
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typedef void F2();
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typedef void F2(); /* { dg-message "previous declaration" } */
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typedef void F2(int); /* { dg-error "with different type" } */
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void
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f (void)
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{
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int a = 1;
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int b = 2;
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typedef void FN(int (*p)[a]);
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typedef void FN(int (*p)[b]);
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typedef void FN(int (*p)[*]); /* { dg-message "previous declaration" } */
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typedef void FN(int (*p)[1]); /* { dg-error "with different type" } */
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typedef void FN2(int (*p)[a]);
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typedef void FN2(int (*p)[b]);
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typedef void FN2(int (*p)[*]); /* { dg-message "previous declaration" } */
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typedef void FN2(int (*p)[]); /* { dg-error "with different type" } */
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typedef int AV[a]; /* { dg-message "previous declaration" } */
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typedef int AV[b-1]; /* { dg-error "redefinition" } */
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typedef int AAa[a]; /* { dg-message "previous declaration" } */
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typedef int AAb[b-1];
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typedef AAa *VF(void); /* { dg-message "previous declaration" } */
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typedef AAb *VF(void); /* { dg-error "redefinition" } */
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typedef AAa AAa; /* { dg-error "redefinition" } */
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}
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