56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/* Test for constant expressions: operands and casts not permitted in
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integer constant expressions. */
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/* Origin: Joseph Myers <joseph@codesourcery.com> */
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/* { dg-do compile } */
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/* { dg-options "-std=iso9899:1990 -pedantic-errors" } */
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__extension__ typedef __PTRDIFF_TYPE__ ptrdiff_t;
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/* PR 29116. */
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int n = 0, p[n * 0 + 1]; /* { dg-error "variabl|can't be evaluated" } */
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/* PR 31871. */
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extern int c[1 + ((ptrdiff_t) (void *) 0)]; /* { dg-error "variab|can't be evaluated" } */
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/* Implicit conversions from floating-point constants are not OK,
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although explicit ones are. */
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extern int c1[1.0 ? 1 : 0]; /* { dg-error "variab|can't be evaluated" } */
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extern int c2[(int)1.0 ? 1 : 0];
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extern int c3[1.0 && 1]; /* { dg-error "variab|can't be evaluated" } */
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extern int c4[(int)1.0 && 1];
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extern int c5[1.0 || 1]; /* { dg-error "variab|can't be evaluated" } */
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extern int c6[(int)1.0 || 1];
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/* Similar with various other cases where integer constant expressions
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are required. */
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struct s {
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int a : (n * 0 + 1); /* { dg-error "constant" } */
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};
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enum e {
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E = (1 + ((ptrdiff_t) (void *) 0)), /* { dg-error "constant" } */
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E2 = 0
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};
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enum f {
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F = (1 ? 1 : n), /* { dg-error "constant" } */
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F2 = 0
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};
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void
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f (int a)
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{
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int v[1 + ((ptrdiff_t) (void *) 0)]; /* { dg-error "variab|can't be evaluated" } */
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switch (a)
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{
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case (n * 0 + 1): /* { dg-error "constant" } */
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;
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}
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}
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