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A real memmove function

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This commit is contained in:
Thomas Lovén
2017-12-14 15:32:57 +01:00
parent 042f61bdb3
commit 15bbfd6e6a
2 changed files with 35 additions and 16 deletions
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27
src/kernel/memory/string.tt
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@@ -30,27 +30,36 @@ TEST(memset_sets_data)
ASSERT_EQ_STR(dst, "aaaaa", 100);
}
// Those test won't pass right now since our memmove implementation is
// incomplete (see string.c)
/*TEST(memmove_moves_data)
TEST(memmove_moves_data)
{
memcpy(&dst[10], "12345", 5);
my_memmove(dst, &dst[10], 5);
ASSERT_EQ_STR(dst, "12345", 5);
}*/
/*TEST(memmove_handles_overlap)
}
TEST(memmove_handles_overlap)
{
memcpy(&dst[5], "1234567890", 10);
my_memmove(dst, &dst[5], 10);
ASSERT_EQ_STR(dst, "1234567890", 10);
}*/
/*TEST(memmove_handles_overlap_the_other_way)
}
TEST(memmove_handles_overlap_the_other_way)
{
memcpy(dst, "1234567890", 10);
my_memmove(&dst[5], dst, 10);
ASSERT_EQ_STR(&dst[5], "1234567890", 10);
}*/
}
TEST(memmove_moves_correct_number_of_chars)
{
memcpy(&dst[5], "1234567890", 10);
my_memmove(dst, &dst[5], 9);
ASSERT_EQ_STR(dst, "123456789567890", 15);
}
TEST(memmove_moves_correct_number_of_chars_the_other_way)
{
memcpy(dst, "1234567890", 10);
my_memmove(&dst[5], dst, 3);
ASSERT_EQ_STR(dst, "1234512390", 10);
}
TEST(memcmp_returns_zero_for_equal_strings)
{