42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
/* $NetBSD: expr_fold_strict_bool.c,v 1.2 2021/08/22 21:17:04 rillig Exp $ */
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# 3 "expr_fold_strict_bool.c"
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/*
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* Test constant folding in strict bool mode.
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*
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* In this mode, _Bool is not an unsigned integer type. In fact, it is not
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* an arithmetic type at all.
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*/
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/* lint1-extra-flags: -T */
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/* lint1-only-if: lp64 */
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typedef long long int64_t;
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typedef unsigned long long uint64_t;
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struct fold_64_bit {
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_Bool lt_signed_small_ok: -3LL < 1LL ? 1 : -1;
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/* expect+1: error: illegal bit-field size: 255 [36] */
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_Bool lt_signed_small_bad: 1LL < -3LL ? 1 : -1;
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_Bool lt_signed_big_ok: (int64_t)(1ULL << 63) < 1LL ? 1 : -1;
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/* expect+1: error: illegal bit-field size: 255 [36] */
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_Bool lt_signed_big_bad: 1LL < (int64_t)(1ULL << 63) ? 1 : -1;
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_Bool lt_unsigned_small_ok: 1ULL < 3ULL ? 1 : -1;
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/* expect+1: error: illegal bit-field size: 255 [36] */
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_Bool lt_unsigned_small_bad: 3ULL < 1ULL ? 1 : -1;
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/*
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* Before tree.c 1.345 from 2021-08-22, lint wrongly assumed that the
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* result of all binary operators were the common arithmetic type,
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* but that was wrong for the comparison operators. The expression
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* '1ULL < 2ULL' does not have type 'unsigned long long' but 'int' in
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* default mode, or '_Bool' in strict bool mode.
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*/
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_Bool lt_unsigned_big_ok: 1ULL < 1ULL << 63 ? 1 : -1;
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/* expect+1: error: illegal bit-field size: 255 [36] */
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_Bool lt_unsigned_big_bad: 1ULL << 63 < 1ULL ? 1 : -1;
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};
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