diff options
author | Bruno Haible <bruno@clisp.org> | 2023-03-30 23:15:52 +0200 |
---|---|---|
committer | Bruno Haible <bruno@clisp.org> | 2023-03-30 23:15:52 +0200 |
commit | 8906a5101bf62b719ddafa376fd4e0805e35617b (patch) | |
tree | 5b48fc73a03cb708b948c700329da2b739ed3c45 /tests | |
parent | 63861afac8004becc3907993cd16b59a5bca5195 (diff) | |
download | gnulib-8906a5101bf62b719ddafa376fd4e0805e35617b.tar.gz |
mbsnrtowcs: Fix behaviour in the C locale.
* m4/mbsnrtowcs.m4 (gl_FUNC_MBSNRTOWCS): Invoke gl_MBRTOWC_C_LOCALE. If
mbrtowc is buggy in the C locale, override also mbsnrtowcs.
* modules/mbsnrtowcs (Files): Add m4/mbrtowc.m4.
* tests/test-mbsnrtowcs.c (main): Add a test of the C locale, based on
tests/test-mbsrtowcs.c.
* tests/test-mbsnrtowcs5.sh: New file, based on tests/test-mbrtowc5.sh.
* modules/mbsnrtowcs-tests (Files): Add it.
(Makefile.am): Test it.
* doc/posix-functions/mbsnrtowcs.texi: Mention the C locale behaviour
bug.
Diffstat (limited to 'tests')
-rw-r--r-- | tests/test-mbsnrtowcs.c | 66 | ||||
-rwxr-xr-x | tests/test-mbsnrtowcs5.sh | 9 |
2 files changed, 75 insertions, 0 deletions
diff --git a/tests/test-mbsnrtowcs.c b/tests/test-mbsnrtowcs.c index e3456b4e2b..2d0e6a7521 100644 --- a/tests/test-mbsnrtowcs.c +++ b/tests/test-mbsnrtowcs.c @@ -281,6 +281,72 @@ main (int argc, char *argv[]) } break; + case '5': + /* C or POSIX locale. */ + { + char input[] = "n/a"; + memset (&state, '\0', sizeof (mbstate_t)); + + src = input; + temp_state = state; + ret = mbsnrtowcs (NULL, &src, 4, unlimited ? BUFSIZE : 1, &temp_state); + ASSERT (ret == 3); + ASSERT (src == input); + ASSERT (mbsinit (&state)); + + src = input; + ret = mbsnrtowcs (buf, &src, 4, unlimited ? BUFSIZE : 1, &state); + ASSERT (ret == (unlimited ? 3 : 1)); + ASSERT (src == (unlimited ? NULL : input + 1)); + ASSERT (buf[0] == 'n'); + if (unlimited) + { + ASSERT (buf[1] == '/'); + ASSERT (buf[2] == 'a'); + ASSERT (buf[3] == 0); + ASSERT (buf[4] == (wchar_t) 0xBADFACE); + } + else + ASSERT (buf[1] == (wchar_t) 0xBADFACE); + ASSERT (mbsinit (&state)); + } + { + int c; + char input[2]; + + memset (&state, '\0', sizeof (mbstate_t)); + for (c = 0; c < 0x100; c++) + if (c != 0) + { + /* We are testing all nonnull bytes. */ + input[0] = c; + input[1] = '\0'; + + src = input; + ret = mbsnrtowcs (NULL, &src, 2, unlimited ? BUFSIZE : 1, &state); + ASSERT (ret == 1); + ASSERT (src == input); + ASSERT (mbsinit (&state)); + + buf[0] = buf[1] = (wchar_t) 0xBADFACE; + src = input; + ret = mbsnrtowcs (buf, &src, 2, unlimited ? BUFSIZE : 1, &state); + /* POSIX:2018 says: "In the POSIX locale an [EILSEQ] error + cannot occur since all byte values are valid characters." */ + ASSERT (ret == 1); + ASSERT (src == (unlimited ? NULL : input + 1)); + if (c < 0x80) + /* c is an ASCII character. */ + ASSERT (buf[0] == c); + else + /* On most platforms, the bytes 0x80..0xFF map to U+0080..U+00FF. + But on musl libc, the bytes 0x80..0xFF map to U+DF80..U+DFFF. */ + ASSERT (buf[0] == (btowc (c) == 0xDF00 + c ? btowc (c) : c)); + ASSERT (mbsinit (&state)); + } + } + break; + default: return 1; } diff --git a/tests/test-mbsnrtowcs5.sh b/tests/test-mbsnrtowcs5.sh new file mode 100755 index 0000000000..b121fb1a69 --- /dev/null +++ b/tests/test-mbsnrtowcs5.sh @@ -0,0 +1,9 @@ +#!/bin/sh + +# Test whether the POSIX locale has encoding errors. +LC_ALL=C \ +${CHECKER} ./test-mbsnrtowcs${EXEEXT} 5 || exit 1 +LC_ALL=POSIX \ +${CHECKER} ./test-mbsnrtowcs${EXEEXT} 5 || exit 1 + +exit 0 |