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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [Wbad-function-cast-1.c] - Blame information for rev 826

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Line No. Rev Author Line
1 298 jeremybenn
/* Test operation of -Wbad-function-cast.  Bug 6980 complained of the
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   wording of the diagnostic.  */
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/* Origin: Joseph Myers <jsm@polyomino.org.uk> */
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/* { dg-do compile } */
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/* { dg-options "-Wbad-function-cast" } */
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void vf(void);
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int if1(void);
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char if2(void);
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long if3(void);
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float rf1(void);
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double rf2(void);
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_Complex double cf(void);
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enum e { E1 } ef(void);
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_Bool bf(void);
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char *pf1(void);
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int *pf2(void);
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void
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foo(void)
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{
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  /* Casts to void types are always OK.  */
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  (void)vf();
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  (void)if1();
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  (void)cf();
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  (const void)bf();
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  /* Casts to the same type or similar types are OK.  */
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  (int)if1();
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  (long)if2();
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  (char)if3();
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  (float)rf1();
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  (long double)rf2();
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  (_Complex float)cf();
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  (enum f { F1 })ef();
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  (_Bool)bf();
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  (void *)pf1();
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  (char *)pf2();
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  /* Casts to types with different TREE_CODE (which is how this
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     warning has been defined) are not OK, except for casts to void
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     types.  */
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  (float)if1(); /* { dg-warning "cast from function call of type 'int' to non-matching type 'float'" } */
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  (double)if2(); /* { dg-warning "cast from function call of type 'char' to non-matching type 'double'" } */
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  (_Bool)if3(); /* { dg-warning "cast from function call of type 'long int' to non-matching type '_Bool'" } */
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  (int)rf1(); /* { dg-warning "cast from function call of type 'float' to non-matching type 'int'" } */
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  (long)rf2(); /* { dg-warning "cast from function call of type 'double' to non-matching type 'long int'" } */
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  (double)cf(); /* { dg-warning "cast from function call of type 'complex double' to non-matching type 'double'" } */
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  (int)ef(); /* { dg-warning "cast from function call of type 'enum e' to non-matching type 'int'" } */
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  (int)bf(); /* { dg-warning "cast from function call of type '_Bool' to non-matching type 'int'" } */
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  (__SIZE_TYPE__)pf1(); /* { dg-warning "cast from function call of type 'char \\*' to non-matching type '\[^\\n\]*'" } */
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  (__PTRDIFF_TYPE__)pf2(); /* { dg-warning "cast from function call of type 'int \\*' to non-matching type '\[^\\n\]*'" } */
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}

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