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tests/lint: make test for message 118 platform-independent

This commit is contained in:
rillig 2021-05-04 19:57:56 +00:00
parent facc67ca98
commit d16694fc52
2 changed files with 29 additions and 8 deletions
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35
tests/usr.bin/xlint/lint1/msg_118.c
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@ -1,18 +1,39 @@
/* $NetBSD: msg_118.c,v 1.4 2021/04/06 21:59:58 rillig Exp $ */
/* $NetBSD: msg_118.c,v 1.5 2021/05/04 19:57:56 rillig Exp $ */
# 3 "msg_118.c"
/* Test for message: semantics of '%s' change in ANSI C; use explicit cast [118] */
/* lint1-flags: -hsw */
/* lint1-flags: -hw */
int
int_shl_uint(int i, unsigned int u)
int_shl_uint(int left, unsigned int right)
{
return i << u;
return left << right;
}
unsigned
uint_shl_ulong(unsigned a, unsigned long ul)
int
int_shr_uint(int left, unsigned int right)
{
return a << ul; /* expect: 118 */
/* expect+1: semantics of '>>' change in ANSI C */
return left >> right;
}
int
int_shl_int(int left, int right)
{
return left << right;
}
/*
* The behavior of typeok_shl can only be triggered on 64-bit platforms, or
* in C99 mode, and the above tests require C90 mode.
*
* On 32-bit platforms both operands of the '<<' operator are first promoted
* individually, and since C90 does not know 'long long', the maximum
* bit-size for an integer type is 32 bits.
*
* Because of this difference there is no test for that case since as of
* 2021-05-04, all lint1 tests must be independent of the target platform and
* there is no way to toggle individual tests depending on the properties of
* the target platform.
*/

2
tests/usr.bin/xlint/lint1/msg_118.exp
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@ -1 +1 @@
msg_118.c(17): warning: semantics of '<<' change in ANSI C; use explicit cast [118]
msg_118.c(18): warning: semantics of '>>' change in ANSI C; use explicit cast [118]