42 lines
1.7 KiB
C
42 lines
1.7 KiB
C
/* Test diagnostics for bad or doubtful casts. Test with no special
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options. */
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/* Origin: Joseph Myers <joseph@codesourcery.com> */
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/* { dg-do compile } */
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/* { dg-options "-std=gnu99" } */
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struct s { int a; } sv;
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union u { int a; } uv;
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int i;
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long l;
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char c;
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void *p;
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float fv;
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void
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f (void)
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{
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(int []) p; /* { dg-error "cast specifies array type" } */
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(int ()) p; /* { dg-error "cast specifies function type" } */
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(struct s) sv;
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(union u) uv;
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(struct s) i; /* { dg-error "conversion to non-scalar type requested" } */
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(union u) i;
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(union u) l; /* { dg-error "cast to union type from type not present in union" } */
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(int) sv; /* { dg-error "aggregate value used where an integer was expected" } */
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(int) uv; /* { dg-error "aggregate value used where an integer was expected" } */
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(float) sv; /* { dg-error "aggregate value used where a float was expected" } */
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(float) uv; /* { dg-error "aggregate value used where a float was expected" } */
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(_Complex double) sv; /* { dg-error "aggregate value used where a complex was expected" } */
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(_Complex double) uv; /* { dg-error "aggregate value used where a complex was expected" } */
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(void *) sv; /* { dg-error "cannot convert to a pointer type" } */
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(void *) uv; /* { dg-error "cannot convert to a pointer type" } */
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(_Bool) sv; /* { dg-error "used struct type value where scalar is required" } */
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(_Bool) uv; /* { dg-error "used union type value where scalar is required" } */
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(void) sv;
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(const void) uv;
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(void *) c; /* { dg-warning "cast to pointer from integer of different size" } */
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(void *) (char) 1;
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(char) p; /* { dg-warning "cast from pointer to integer of different size" } */
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(char) (void *) 1; /* { dg-warning "cast from pointer to integer of different size" } */
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}
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