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tests/lint: test initializing an unnamed union

This commit is contained in:
rillig 2023-06-30 22:27:47 +00:00
parent 31f1ed95bf
commit 91f591a176
1 changed files with 36 additions and 1 deletions
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37
tests/usr.bin/xlint/lint1/init_braces.c
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@ -1,4 +1,4 @@
/* $NetBSD: init_braces.c,v 1.5 2023/06/30 21:06:18 rillig Exp $ */
/* $NetBSD: init_braces.c,v 1.6 2023/06/30 22:27:47 rillig Exp $ */
# 3 "init_braces.c"
/*
@ -96,3 +96,38 @@ init_anonymous_struct_and_union(void)
return var.times.t0.ns;
}
// Minimized example taken from jemalloc.c, init_lock.
unsigned char
init_unnamed_union(void)
{
struct init_unnamed_union {
union {
struct {
struct padded_union {
unsigned char pad1[3];
union {
unsigned char u1;
unsigned char u2;
};
unsigned char pad2[3];
} padded_union;
};
};
};
struct init_unnamed_union var = {
{
{
.padded_union = {
.pad1 = { 0, 0, 0 },
/* FIXME: Allow access to unnamed struct/union members. */
/* expect+1: error: type 'struct padded_union' does not have member 'u1' [101] */
.u1 = 0,
.pad2 = { 0, 0, 0 },
},
}
},
};
return var.padded_union.u1;
}