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/* Test for constant expressions: __builtin_choose_expr. */
/* Origin: Joseph Myers <joseph@codesourcery.com> */
/* { dg-do compile } */
/* { dg-options "-std=gnu89 -pedantic-errors" } */
#include <limits.h>
int a, b, c;
void
f (void)
{
/* __builtin_choose_expr acts exactly like the chosen argument for
all constant expression purposes. */
enum e {
E1 = __builtin_choose_expr (1, 1, ++b)
};
/* The first argument to __builtin_choose_expr must be an integer
constant expression. */
a = __builtin_choose_expr ((void *)0, b, c); /* { dg-error "constant" } */
a = __builtin_choose_expr (0 * (INT_MAX + 1), b, c); /* { dg-warning "integer overflow in expression" } */
/* { dg-error "overflow in constant expression" "constant" { target *-*-* } 21 } */
a = __builtin_choose_expr (1 / 0, 0, 0); /* { dg-warning "division by zero" } */
/* { dg-error "not a constant" "error" { target *-*-* } 23 } */
a = __builtin_choose_expr ((1 ? 1 : a), b, c); /* { dg-error "constant" } */
}
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