28 lines
1.6 KiB
C
28 lines
1.6 KiB
C
/* Test for constant expressions: overflow and constant expressions
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with -fwrapv: overflows still count as such for the purposes of
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constant expressions even when they have defined values at
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runtime. */
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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 -fwrapv" } */
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#include <limits.h>
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enum e {
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E0 = 0 * (INT_MAX + 1), /* { dg-warning "21:integer overflow in expression" } */
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/* { dg-error "3:overflow in constant expression" "constant" { target *-*-* } 12 } */
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E1 = 0 * (INT_MIN / -1), /* { dg-warning "21:integer overflow in expression" } */
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/* { dg-error "3:overflow in constant expression" "constant" { target *-*-* } 14 } */
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E2 = 0 * (INT_MAX * INT_MAX), /* { dg-warning "21:integer overflow in expression" } */
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/* { dg-error "3:overflow in constant expression" "constant" { target *-*-* } 16 } */
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E3 = 0 * (INT_MIN - 1), /* { dg-warning "21:integer overflow in expression" } */
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/* { dg-error "3:overflow in constant expression" "constant" { target *-*-* } 18 } */
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E4 = 0 * (unsigned)(INT_MIN - 1), /* { dg-warning "31:integer overflow in expression" } */
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/* { dg-error "3:overflow in constant expression" "constant" { target *-*-* } 20 } */
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E5 = 0 * -INT_MIN, /* { dg-warning "12:integer overflow in expression" } */
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/* { dg-error "3:overflow in constant expression" "constant" { target *-*-* } 22 } */
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E6 = 0 * !-INT_MIN, /* { dg-warning "13:integer overflow in expression" } */
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/* { dg-error "3:not an integer constant" "constant" { target *-*-* } 24 } */
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E7 = INT_MIN % -1 /* Not an overflow. */
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};
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