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tests/lint: demonstrate wrong warning when comparing a bit-field 

Since decl.c 1.180 from 2021-05-02, which allowed arbitrary integer
types to be used as the underlying type for bit-fields in GCC mode.
This commit is contained in:
rillig 2024-03-12 07:29:39 +00:00
parent de71543116
commit fc2f5e14be
1 changed files with 17 additions and 1 deletions
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18
tests/usr.bin/xlint/lint1/msg_132.c
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@ -1,4 +1,4 @@
/* $NetBSD: msg_132.c,v 1.33 2024/01/28 08:17:27 rillig Exp $ */
/* $NetBSD: msg_132.c,v 1.34 2024/03/12 07:29:39 rillig Exp $ */
# 3 "msg_132.c"
// Test for message: conversion from '%s' to '%s' may lose accuracy [132]
@ -402,3 +402,19 @@ test_ic_conditional(char c1, char c2)
/* expect+1: warning: conversion from 'int' to 'unsigned char' may lose accuracy [132] */
u8 = cond ? s8 : u8;
}
void
fp_classify(void)
{
static struct ieee_ext {
unsigned long long ext_exp:15;
} x;
/* FIXME: There is no loss of accuracy here. */
/* expect+1: warning: conversion from 'unsigned long long:15' to 'int:15' may lose accuracy [132] */
if (x.ext_exp == 0) {
/* FIXME: There is no loss of accuracy here. */
/* expect+1: warning: conversion from 'unsigned long long:15' to 'int:15' may lose accuracy [132] */
} else if (x.ext_exp == 0x7fff) {
}
}