/* $NetBSD: lsym_colon.c,v 1.5 2022/04/24 09:04:12 rillig Exp $ */

/*
 * Tests for the token lsym_colon, which represents a ':' in these contexts:
 *
 * After a label that is the target of a 'goto' statement.
 *
 * In a 'switch' statement, after a 'case' label or a 'default' label.
 *
 * As part of the conditional operator '?:'.
 *
 * In the declaration of a struct member that is a bit-field.
 *
 * Since C11, in the _Generic selection to separate the type from its
 * corresponding expression.
 *
 * See also:
 *      label.c
 *      lsym_case_label.c       for the C11 _Generic expression
 *      lsym_question.c
 */

/*
 * The ':' marks a label that can be used in a 'goto' statement.
 */
//indent input
void endless(void)
{
label1:
goto label2;

    if (true)if (true)if (true)if (true)label2 :goto label1;
}
//indent end

//indent run
void
endless(void)
{
label1:
        goto label2;

        if (true)
                if (true)
                        if (true)
                                if (true)
                        label2:         goto label1;
}
//indent end


/*
 * The ':' is used in a 'switch' statement, after a 'case' label or a
 * 'default' label.
 */
//indent input
void
example(void)
{
        switch (expr) {
        case 'x':
                return;
        default:
                return;
        }
}
//indent end

//indent run-equals-input


/*
 * The ':' is used as part of the conditional operator '?:'.
 */
//indent input
int constant_expression = true?4:12345;
//indent end

//indent run
int             constant_expression = true ? 4 : 12345;
//indent end


/*
 * The ':' is used in the declaration of a struct member that is a bit-field.
 */
//indent input
struct bit_field {
        bool flag:1;
        int maybe_signed : 4;
        signed int definitely_signed:3;
        signed int : 0;/* padding */
        unsigned int definitely_unsigned:3;
        unsigned int:0;/* padding */
};
//indent end

//indent run
struct bit_field {
        bool            flag:1;
        int             maybe_signed:4;
        signed int      definitely_signed:3;
/* $ XXX: Placing the colon directly at the type looks inconsistent. */
        signed int:     0;      /* padding */
        unsigned int    definitely_unsigned:3;
/* $ XXX: Placing the colon directly at the type looks inconsistent. */
        unsigned int:   0;      /* padding */
};
//indent end