Fix the printf family for non-ASCII.
The bug here turned out to be that we hadn't increased the constant
corresponding to the maximum number of bytes in a character to match
our new implementation, so any character requiring more than a byte
in UTF-8 would break our printf family.
Bug: 15439554
Change-Id: I693e5e6eb11c640b5886e848502908ec5fff53b1
diff --git a/tests/wchar_test.cpp b/tests/wchar_test.cpp
index e76026f..a5f5f63 100644
--- a/tests/wchar_test.cpp
+++ b/tests/wchar_test.cpp
@@ -449,3 +449,32 @@
wmemmove(wstr+5, wstr, sizeof(const_wstr)/sizeof(wchar_t) - 6);
EXPECT_STREQ(L"This This is a test of something or other", wstr);
}
+
+TEST(wchar, mbrtowc_15439554) {
+ // http://b/15439554
+ ASSERT_STREQ("C.UTF-8", setlocale(LC_CTYPE, "C.UTF-8"));
+ uselocale(LC_GLOBAL_LOCALE);
+
+ ASSERT_GE(static_cast<size_t>(MB_LEN_MAX), MB_CUR_MAX);
+ ASSERT_GE(MB_CUR_MAX, 4U);
+
+ wchar_t wc;
+ size_t n;
+
+ // 1-byte character.
+ n = mbrtowc(&wc, "x", MB_CUR_MAX, NULL);
+ EXPECT_EQ(1U, n);
+ EXPECT_EQ(L'x', wc);
+ // 2-byte character.
+ n = mbrtowc(&wc, "\xc2\xa2", MB_CUR_MAX, NULL);
+ EXPECT_EQ(2U, n);
+ EXPECT_EQ(L'¢', wc);
+ // 3-byte character.
+ n = mbrtowc(&wc, "\xe2\x82\xac", MB_CUR_MAX, NULL);
+ EXPECT_EQ(3U, n);
+ EXPECT_EQ(L'€', wc);
+ // 4-byte character.
+ n = mbrtowc(&wc, "\xf0\xa4\xad\xa2", MB_CUR_MAX, NULL);
+ EXPECT_EQ(4U, n);
+ EXPECT_EQ(L'𤭢', wc);
+}