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[src/trunk]: src/usr.bin/xlint/lint1 lint: add is_struct_or_union



details:   https://anonhg.NetBSD.org/src/rev/029e59847624
branches:  trunk
changeset: 982006:029e59847624
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sun Mar 28 18:01:57 2021 +0000

description:
lint: add is_struct_or_union

No functional change.

diffstat:

 usr.bin/xlint/lint1/init.c |  18 ++++++++++++------
 1 files changed, 12 insertions(+), 6 deletions(-)

diffs (60 lines):

diff -r 121f2ec87e60 -r 029e59847624 usr.bin/xlint/lint1/init.c
--- a/usr.bin/xlint/lint1/init.c        Sun Mar 28 17:52:09 2021 +0000
+++ b/usr.bin/xlint/lint1/init.c        Sun Mar 28 18:01:57 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: init.c,v 1.166 2021/03/28 16:28:15 rillig Exp $        */
+/*     $NetBSD: init.c,v 1.167 2021/03/28 18:01:57 rillig Exp $        */
 
 /*
  * Copyright (c) 1994, 1995 Jochen Pohl
@@ -37,7 +37,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__RCSID) && !defined(lint)
-__RCSID("$NetBSD: init.c,v 1.166 2021/03/28 16:28:15 rillig Exp $");
+__RCSID("$NetBSD: init.c,v 1.167 2021/03/28 18:01:57 rillig Exp $");
 #endif
 
 #include <stdlib.h>
@@ -321,6 +321,13 @@
 #endif
 
 
+static bool
+is_struct_or_union(tspec_t t)
+{
+       return t == STRUCT || t == UNION;
+}
+
+
 /* In traditional C, bit-fields can be initialized only by integer constants. */
 static void
 check_bit_field_init(const tnode_t *ln, tspec_t lt, tspec_t rt)
@@ -568,7 +575,7 @@
        const type_t *tp = level->bl_type;
        const sym_t *m;
 
-       lint_assert(tp->t_tspec == STRUCT || tp->t_tspec == UNION);
+       lint_assert(is_struct_or_union(tp->t_tspec));
 
        for (m = tp->t_str->sou_first_member; m != NULL; m = m->s_next) {
                if (m->s_bitfield && m->s_name == unnamed)
@@ -678,7 +685,7 @@
        if (t == ARRAY) {
                /* too many array initializers, expected %d */
                error(173, level->bl_type->t_dim);
-       } else if (t == STRUCT || t == UNION) {
+       } else if (is_struct_or_union(t)) {
                /* too many struct/union initializers */
                error(172);
        } else {
@@ -940,8 +947,7 @@
         */
        debug_step("initializing named member '%s'", name);
 
-       if (level->bl_type->t_tspec != STRUCT &&
-           level->bl_type->t_tspec != UNION) {
+       if (!is_struct_or_union(level->bl_type->t_tspec)) {
                /* syntax error '%s' */
                error(249, "named member must only be used with struct/union");
                initialization_set_error(in);



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