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tests/lint: demonstrate wrong error message for initialization 

Seen in usr.bin/make/var.c:4022 in C99 mode, where a ModChain variable
is initialized and two of the members are const-qualified.
This commit is contained in:
rillig 2021-07-31 09:14:47 +00:00
parent 51085f5d8c
commit fe7cbecd8a
2 changed files with 20 additions and 1 deletions
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20
tests/usr.bin/xlint/lint1/msg_115.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: msg_115.c,v 1.4 2021/01/31 11:12:07 rillig Exp $ */
/* $NetBSD: msg_115.c,v 1.5 2021/07/31 09:14:47 rillig Exp $ */
# 3 "msg_115.c"
// Test for message: %soperand of '%s' must be modifiable lvalue [115]
@ -15,3 +15,21 @@ example(const int *const_ptr)
*const_ptr %= 9; /* expect: 115 */
(*const_ptr)++; /* expect: 115 */
}
void
initialize_const_struct_member(void)
{
struct S {
int const member;
};
/* FIXME: In an initialization, const members can be assigned. */
/* expect+1: warning: left operand of '=' must be modifiable lvalue [115] */
struct S s1 = (struct S) { 12345 };
if (s1.member != 0)
return;
struct S s2 = { 12345 };
if (s2.member != 0)
return;
}

1
tests/usr.bin/xlint/lint1/msg_115.exp
View File

@ -5,3 +5,4 @@ msg_115.c(13): warning: left operand of '*=' must be modifiable lvalue [115]
msg_115.c(14): warning: left operand of '/=' must be modifiable lvalue [115]
msg_115.c(15): warning: left operand of '%=' must be modifiable lvalue [115]
msg_115.c(16): warning: operand of 'x++' must be modifiable lvalue [115]
msg_115.c(28): warning: left operand of '=' must be modifiable lvalue [115]