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libc: Add memset test for int-to-char conversion

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Test case to check if an implementation of memset correctly
handles the value passed being wider than a byte

Approved by:	emaste
Reviewed By:	fuz (GSoC mentor), emaste
Sponsored by:	Google LLC (GSoC 2024)
Differential Revision: https://reviews.freebsd.org/D45738
This commit is contained in:
Strahinja Stanišić 2024-07-13 14:53:07 +02:00 committed by Robert Clausecker
parent 69dace892d
commit f0d1236f0f
2 changed files with 31 additions and 0 deletions
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2
lib/libc/tests/string/Makefile
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@ -12,6 +12,7 @@ ATF_TESTS_C+= flsll_test
ATF_TESTS_C+= memccpy_test
ATF_TESTS_C+= memcmp_test
ATF_TESTS_C+= memrchr_test
ATF_TESTS_C+= memset2_test
ATF_TESTS_C+= memset_s_test
ATF_TESTS_C+= strncmp_test
ATF_TESTS_C+= stpncpy_test
@ -45,6 +46,7 @@ NETBSD_ATF_TESTS_C+= strpbrk_test
NETBSD_ATF_TESTS_C+= strrchr_test
NETBSD_ATF_TESTS_C+= swab_test
SRCS.memset2_test= memset_test.c
SRCS.strcmp2_test= strcmp_test.c
SRCS.strerror2_test= strerror_test.c

29
lib/libc/tests/string/memset_test.c Normal file
View file

@ -0,0 +1,29 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2024 Strahinja Stanisic <strajabot@FreeBSD.org>
*/
#include <assert.h>
#include <string.h>
#include <atf-c.h>
ATF_TC_WITHOUT_HEAD(int_char_conv);
ATF_TC_BODY(int_char_conv, tc)
{
char b[64];
int c = 0xDEADBEEF;
memset(&b, c, 64);
for(int i = 0; i < 64; i++) {
assert(b[i] == (char)c);
}
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, int_char_conv);
return (atf_no_error());
}