1 // RUN: %check_clang_tidy %s cert-dcl16-c %t -- -- -I %S
2 // RUN: grep -Ev "// *[A-Z-]+:" %s > %t.cpp
3 // RUN: clang-tidy %t.cpp -checks='-*,cert-dcl16-c' -fix -- -I %S
4 // RUN: clang-tidy %t.cpp -checks='-*,cert-dcl16-c' -warnings-as-errors='-*,cert-dcl16-c' -- -I %S
5 
6 #include "readability-uppercase-literal-suffix.h"
7 
integer_suffix()8 void integer_suffix() {
9   static constexpr auto v0 = __LINE__; // synthetic
10   static_assert(v0 == 9 || v0 == 5, "");
11 
12   static constexpr auto v1 = __cplusplus; // synthetic, long
13 
14   static constexpr auto v2 = 1; // no literal
15   static_assert(is_same<decltype(v2), const int>::value, "");
16   static_assert(v2 == 1, "");
17 
18   // Unsigned
19 
20   static constexpr auto v3 = 1u;
21   static_assert(is_same<decltype(v3), const unsigned int>::value, "");
22   static_assert(v3 == 1, "");
23 
24   static constexpr auto v4 = 1U; // OK.
25   static_assert(is_same<decltype(v4), const unsigned int>::value, "");
26   static_assert(v4 == 1, "");
27 
28   // Long
29 
30   static constexpr auto v5 = 1l;
31   // CHECK-MESSAGES: :[[@LINE-1]]:30: warning: integer literal has suffix 'l', which is not uppercase
32   // CHECK-MESSAGES-NEXT: static constexpr auto v5 = 1l;
33   // CHECK-MESSAGES-NEXT: ^~
34   // CHECK-MESSAGES-NEXT: {{^ *}}L{{$}}
35   // CHECK-FIXES: static constexpr auto v5 = 1L;
36   static_assert(is_same<decltype(v5), const long>::value, "");
37   static_assert(v5 == 1, "");
38 
39   static constexpr auto v6 = 1L; // OK.
40   static_assert(is_same<decltype(v6), const long>::value, "");
41   static_assert(v6 == 1, "");
42 
43   // Long Long
44 
45   static constexpr auto v7 = 1ll;
46   // CHECK-MESSAGES: :[[@LINE-1]]:30: warning: integer literal has suffix 'll', which is not uppercase
47   // CHECK-MESSAGES-NEXT: static constexpr auto v7 = 1ll;
48   // CHECK-MESSAGES-NEXT: ^~~
49   // CHECK-MESSAGES-NEXT: {{^ *}}LL{{$}}
50   // CHECK-FIXES: static constexpr auto v7 = 1LL;
51   static_assert(is_same<decltype(v7), const long long>::value, "");
52   static_assert(v7 == 1, "");
53 
54   static constexpr auto v8 = 1LL; // OK.
55   static_assert(is_same<decltype(v8), const long long>::value, "");
56   static_assert(v8 == 1, "");
57 
58   // Unsigned Long
59 
60   static constexpr auto v9 = 1ul;
61   static_assert(is_same<decltype(v9), const unsigned long>::value, "");
62   static_assert(v9 == 1, "");
63 
64   static constexpr auto v10 = 1uL;
65   static_assert(is_same<decltype(v10), const unsigned long>::value, "");
66   static_assert(v10 == 1, "");
67 
68   static constexpr auto v11 = 1Ul;
69   static_assert(is_same<decltype(v11), const unsigned long>::value, "");
70   static_assert(v11 == 1, "");
71 
72   static constexpr auto v12 = 1UL; // OK.
73   static_assert(is_same<decltype(v12), const unsigned long>::value, "");
74   static_assert(v12 == 1, "");
75 
76   // Long Unsigned
77 
78   static constexpr auto v13 = 1lu;
79   // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: integer literal has suffix 'lu', which is not uppercase
80   // CHECK-MESSAGES-NEXT: static constexpr auto v13 = 1lu;
81   // CHECK-MESSAGES-NEXT: ^~~
82   // CHECK-MESSAGES-NEXT: {{^ *}}LU{{$}}
83   // CHECK-FIXES: static constexpr auto v13 = 1LU;
84   static_assert(is_same<decltype(v13), const unsigned long>::value, "");
85   static_assert(v13 == 1, "");
86 
87   static constexpr auto v14 = 1Lu;
88   // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: integer literal has suffix 'Lu', which is not uppercase
89   // CHECK-MESSAGES-NEXT: static constexpr auto v14 = 1Lu;
90   // CHECK-MESSAGES-NEXT: ^~~
91   // CHECK-MESSAGES-NEXT: {{^ *}}LU{{$}}
92   // CHECK-FIXES: static constexpr auto v14 = 1LU;
93   static_assert(is_same<decltype(v14), const unsigned long>::value, "");
94   static_assert(v14 == 1, "");
95 
96   static constexpr auto v15 = 1lU;
97   // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: integer literal has suffix 'lU', which is not uppercase
98   // CHECK-MESSAGES-NEXT: static constexpr auto v15 = 1lU;
99   // CHECK-MESSAGES-NEXT: ^~~
100   // CHECK-MESSAGES-NEXT: {{^ *}}LU{{$}}
101   // CHECK-FIXES: static constexpr auto v15 = 1LU;
102   static_assert(is_same<decltype(v15), const unsigned long>::value, "");
103   static_assert(v15 == 1, "");
104 
105   static constexpr auto v16 = 1LU; // OK.
106   static_assert(is_same<decltype(v16), const unsigned long>::value, "");
107   static_assert(v16 == 1, "");
108 
109   // Unsigned Long Long
110 
111   static constexpr auto v17 = 1ull;
112   static_assert(is_same<decltype(v17), const unsigned long long>::value, "");
113   static_assert(v17 == 1, "");
114 
115   static constexpr auto v18 = 1uLL;
116   static_assert(is_same<decltype(v18), const unsigned long long>::value, "");
117   static_assert(v18 == 1, "");
118 
119   static constexpr auto v19 = 1Ull;
120   static_assert(is_same<decltype(v19), const unsigned long long>::value, "");
121   static_assert(v19 == 1, "");
122 
123   static constexpr auto v20 = 1ULL; // OK.
124   static_assert(is_same<decltype(v20), const unsigned long long>::value, "");
125   static_assert(v20 == 1, "");
126 
127   // Long Long Unsigned
128 
129   static constexpr auto v21 = 1llu;
130   // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: integer literal has suffix 'llu', which is not uppercase
131   // CHECK-MESSAGES-NEXT: static constexpr auto v21 = 1llu;
132   // CHECK-MESSAGES-NEXT: ^~~~
133   // CHECK-MESSAGES-NEXT: {{^ *}}LLU{{$}}
134   // CHECK-FIXES: static constexpr auto v21 = 1LLU;
135   static_assert(is_same<decltype(v21), const unsigned long long>::value, "");
136   static_assert(v21 == 1, "");
137 
138   static constexpr auto v22 = 1LLu;
139   // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: integer literal has suffix 'LLu', which is not uppercase
140   // CHECK-MESSAGES-NEXT: static constexpr auto v22 = 1LLu;
141   // CHECK-MESSAGES-NEXT: ^~~~
142   // CHECK-MESSAGES-NEXT: {{^ *}}LLU{{$}}
143   // CHECK-FIXES: static constexpr auto v22 = 1LLU;
144   static_assert(is_same<decltype(v22), const unsigned long long>::value, "");
145   static_assert(v22 == 1, "");
146 
147   static constexpr auto v23 = 1llU;
148   // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: integer literal has suffix 'llU', which is not uppercase
149   // CHECK-MESSAGES-NEXT: static constexpr auto v23 = 1llU;
150   // CHECK-MESSAGES-NEXT: ^~~~
151   // CHECK-MESSAGES-NEXT: {{^ *}}LLU{{$}}
152   // CHECK-FIXES: static constexpr auto v23 = 1LLU;
153   static_assert(is_same<decltype(v23), const unsigned long long>::value, "");
154   static_assert(v23 == 1, "");
155 
156   static constexpr auto v24 = 1LLU; // OK.
157   static_assert(is_same<decltype(v24), const unsigned long long>::value, "");
158   static_assert(v24 == 1, "");
159 }
160