1 //===-- Unittests for atoll -----------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "src/stdlib/atoll.h"
10
11 #include "utils/UnitTest/Test.h"
12
13 #include <limits.h>
14
TEST(LlvmLibcAToLLTest,ValidNumbers)15 TEST(LlvmLibcAToLLTest, ValidNumbers) {
16 const char *zero = "0";
17 ASSERT_EQ(__llvm_libc::atoll(zero), 0ll);
18
19 const char *ten = "10";
20 ASSERT_EQ(__llvm_libc::atoll(ten), 10ll);
21
22 const char *negative_hundred = "-100";
23 ASSERT_EQ(__llvm_libc::atoll(negative_hundred), -100ll);
24
25 const char *positive_thousand = "+1000";
26 ASSERT_EQ(__llvm_libc::atoll(positive_thousand), 1000ll);
27
28 const char *spaces_before = " 12345";
29 ASSERT_EQ(__llvm_libc::atoll(spaces_before), 12345ll);
30
31 const char *tabs_before = "\t\t\t\t67890";
32 ASSERT_EQ(__llvm_libc::atoll(tabs_before), 67890ll);
33
34 const char *letters_after = "123abc";
35 ASSERT_EQ(__llvm_libc::atoll(letters_after), 123ll);
36
37 const char *letters_between = "456def789";
38 ASSERT_EQ(__llvm_libc::atoll(letters_between), 456ll);
39
40 const char *all_together = "\t 110 times 5 = 550";
41 ASSERT_EQ(__llvm_libc::atoll(all_together), 110ll);
42
43 const char *biggest_long_long = "9223372036854775807";
44 ASSERT_EQ(__llvm_libc::atoll(biggest_long_long), LLONG_MAX);
45
46 const char *smallest_long_long = "-9223372036854775808";
47 ASSERT_EQ(__llvm_libc::atoll(smallest_long_long), LLONG_MIN);
48 }
49
TEST(LlvmLibcAToLLTest,NonBaseTenWholeNumbers)50 TEST(LlvmLibcAToLLTest, NonBaseTenWholeNumbers) {
51 const char *hexadecimal = "0x10";
52 ASSERT_EQ(__llvm_libc::atoll(hexadecimal), 0ll);
53
54 const char *octal = "010";
55 ASSERT_EQ(__llvm_libc::atoll(octal), 10ll);
56
57 const char *decimal_point = "5.9";
58 ASSERT_EQ(__llvm_libc::atoll(decimal_point), 5ll);
59 }
60
TEST(LlvmLibcAToLLTest,NotNumbers)61 TEST(LlvmLibcAToLLTest, NotNumbers) {
62 const char *ten_as_word = "ten";
63 ASSERT_EQ(__llvm_libc::atoll(ten_as_word), 0ll);
64
65 const char *lots_of_letters =
66 "wtragsdhfgjykutjdyfhgnchgmjhkyurktfgjhlu;po7urtdjyfhgklyk";
67 ASSERT_EQ(__llvm_libc::atoll(lots_of_letters), 0ll);
68 }
69