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jeremybenn |
/* Test for constant expressions: overflow and constant expressions;
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see also overflow-warn-*.c for some other cases. */
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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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#include <float.h>
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int a = DBL_MAX; /* { dg-warning "overflow in implicit constant conversion" } */
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/* { dg-error "overflow in constant expression" "constant" { target *-*-* } 9 } */
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int b = (int) DBL_MAX; /* { dg-error "overflow" "" } */
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unsigned int c = -1.0; /* { dg-warning "overflow in implicit constant conversion" } */
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/* { dg-error "overflow in constant expression" "constant" { target *-*-* } 12 } */
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unsigned int d = (unsigned)-1.0; /* { dg-error "overflow" } */
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int e = 0 << 1000; /* { dg-warning "shift count" } */
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/* { dg-error "constant" "constant" { target *-*-* } 16 } */
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int f = 0 << -1; /* { dg-warning "shift count" } */
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/* { dg-error "constant" "constant" { target *-*-* } 18 } */
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int g = 0 >> 1000; /* { dg-warning "shift count" } */
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/* { dg-error "constant" "constant" { target *-*-* } 20 } */
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int h = 0 >> -1; /* { dg-warning "shift count" } */
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/* { dg-error "constant" "constant" { target *-*-* } 22 } */
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int b1 = (0 ? (int) DBL_MAX : 0);
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unsigned int d1 = (0 ? (unsigned int)-1.0 : 0);
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int e1 = (0 ? 0 << 1000 : 0);
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int f1 = (0 ? 0 << -1 : 0);
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int g1 = (0 ? 0 >> 1000 : 0);
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int h1 = (0 ? 0 >> -1: 0);
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int i = -1 << 0;
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int j[1] = { DBL_MAX }; /* { dg-warning "overflow in implicit constant conversion" } */
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/* { dg-error "overflow in constant expression" "constant" { target *-*-* } 34 } */
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