1 // RUN: cp %s %t
2 // RUN: %clang_cc1 -pedantic -Wall -fixit %t
3 // RUN: %clang_cc1 -fsyntax-only -pedantic -Wall -Werror %t
4 // RUN: %clang_cc1 -E -o - %t | FileCheck %s
5 
6 /* This is a test of the various code modification hints that are
7    provided as part of warning or extension diagnostics. All of the
8    warnings will be fixed by -fixit, and the resulting file should
9    compile cleanly with -Werror -pedantic. */
10 
11 int printf(char const *, ...);
12 
13 typedef __SIZE_TYPE__ size_t;
14 typedef __INTMAX_TYPE__ intmax_t;
15 typedef __UINTMAX_TYPE__ uintmax_t;
16 typedef __PTRDIFF_TYPE__ ptrdiff_t;
17 
18 void test() {
19   // Basic types
20   printf("%s", (int) 123);
21   printf("abc%0f", "testing testing 123");
22   printf("%u", (long) -12);
23   printf("%p", 123);
24   printf("%c\n", "x");
25   printf("%c\n", 1.23);
26 
27   // Larger types
28   printf("%+.2d", (unsigned long long) 123456);
29   printf("%1d", (long double) 1.23);
30 
31   // Flag handling
32   printf("%0+s", (unsigned) 31337); // 0 flag should stay
33   printf("%#p", (void *) 0);
34   printf("% +f", 1.23); // + flag should stay
35   printf("%0-f", 1.23); // - flag should stay
36 
37   // Positional arguments
38 #pragma clang diagnostic push // Don't warn about using positional arguments.
39 #pragma clang diagnostic ignored "-Wformat-non-iso"
40   printf("%1$f:%2$.*3$f:%4$.*3$f\n", 1, 2, 3, 4);
41 #pragma clang diagnostic pop
42 
43   // Precision
44   printf("%10.5d", 1l); // (bug 7394)
45   printf("%.2c", 'a');
46 
47   // Ignored flags
48   printf("%0-f", 1.23);
49 
50   // Bad length modifiers
51   printf("%hhs", "foo");
52 #pragma clang diagnostic push // Don't warn about using positional arguments.
53 #pragma clang diagnostic ignored "-Wformat-non-iso"
54   printf("%1$zp", (void *)0);
55 #pragma clang diagnostic pop
56 
57   // Preserve the original formatting for unsigned integers.
58   unsigned long val = 42;
59   printf("%X", val);
60 
61   // size_t, etc.
62   printf("%f", (size_t) 42);
63   printf("%f", (intmax_t) 42);
64   printf("%f", (uintmax_t) 42);
65   printf("%f", (ptrdiff_t) 42);
66 
67   // Look beyond the first typedef.
68   typedef size_t my_size_type;
69   typedef intmax_t my_intmax_type;
70   typedef uintmax_t my_uintmax_type;
71   typedef ptrdiff_t my_ptrdiff_type;
72   typedef int my_int_type;
73   printf("%f", (my_size_type) 42);
74   printf("%f", (my_intmax_type) 42);
75   printf("%f", (my_uintmax_type) 42);
76   printf("%f", (my_ptrdiff_type) 42);
77   printf("%f", (my_int_type) 42);
78 
79   // string
80   printf("%ld", "foo");
81 
82   // Preserve the original choice of conversion specifier.
83   printf("%o", (long) 42);
84   printf("%u", (long) 42);
85   printf("%x", (long) 42);
86   printf("%X", (long) 42);
87   printf("%i", (unsigned long) 42);
88   printf("%d", (unsigned long) 42);
89   printf("%F", (long double) 42);
90   printf("%e", (long double) 42);
91   printf("%E", (long double) 42);
92   printf("%g", (long double) 42);
93   printf("%G", (long double) 42);
94   printf("%a", (long double) 42);
95   printf("%A", (long double) 42);
96 }
97 
98 int scanf(char const *, ...);
99 
100 void test2() {
101   char str[100];
102   short shortVar;
103   unsigned short uShortVar;
104   int intVar;
105   unsigned uIntVar;
106   float floatVar;
107   double doubleVar;
108   long double longDoubleVar;
109   long longVar;
110   unsigned long uLongVar;
111   long long longLongVar;
112   unsigned long long uLongLongVar;
113   size_t sizeVar;
114   intmax_t intmaxVar;
115   uintmax_t uIntmaxVar;
116   ptrdiff_t ptrdiffVar;
117 
118   scanf("%lf", str);
119   scanf("%f", &shortVar);
120   scanf("%f", &uShortVar);
121   scanf("%p", &intVar);
122   scanf("%Lf", &uIntVar);
123   scanf("%ld", &floatVar);
124   scanf("%f", &doubleVar);
125   scanf("%d", &longDoubleVar);
126   scanf("%f", &longVar);
127   scanf("%f", &uLongVar);
128   scanf("%f", &longLongVar);
129   scanf("%f", &uLongLongVar);
130 
131   // Some named ints.
132   scanf("%f", &sizeVar);
133   scanf("%f", &intmaxVar);
134   scanf("%f", &uIntmaxVar);
135   scanf("%f", &ptrdiffVar);
136 
137   // Look beyond the first typedef for named integer types.
138   typedef size_t my_size_type;
139   typedef intmax_t my_intmax_type;
140   typedef uintmax_t my_uintmax_type;
141   typedef ptrdiff_t my_ptrdiff_type;
142   typedef int my_int_type;
143   scanf("%f", (my_size_type*)&sizeVar);
144   scanf("%f", (my_intmax_type*)&intmaxVar);
145   scanf("%f", (my_uintmax_type*)&uIntmaxVar);
146   scanf("%f", (my_ptrdiff_type*)&ptrdiffVar);
147   scanf("%f", (my_int_type*)&intVar);
148 
149   // Preserve the original formatting.
150   scanf("%o", &longVar);
151   scanf("%u", &longVar);
152   scanf("%x", &longVar);
153   scanf("%X", &longVar);
154   scanf("%i", &uLongVar);
155   scanf("%d", &uLongVar);
156   scanf("%F", &longDoubleVar);
157   scanf("%e", &longDoubleVar);
158   scanf("%E", &longDoubleVar);
159   scanf("%g", &longDoubleVar);
160   scanf("%G", &longDoubleVar);
161   scanf("%a", &longDoubleVar);
162   scanf("%A", &longDoubleVar);
163 }
164 
165 // Validate the fixes.
166 // CHECK: printf("%d", (int) 123);
167 // CHECK: printf("abc%s", "testing testing 123");
168 // CHECK: printf("%ld", (long) -12);
169 // CHECK: printf("%d", 123);
170 // CHECK: printf("%s\n", "x");
171 // CHECK: printf("%f\n", 1.23);
172 // CHECK: printf("%+.2lld", (unsigned long long) 123456);
173 // CHECK: printf("%1Lf", (long double) 1.23);
174 // CHECK: printf("%0u", (unsigned) 31337);
175 // CHECK: printf("%p", (void *) 0);
176 // CHECK: printf("%+f", 1.23);
177 // CHECK: printf("%-f", 1.23);
178 // CHECK: printf("%1$d:%2$.*3$d:%4$.*3$d\n", 1, 2, 3, 4);
179 // CHECK: printf("%10.5ld", 1l);
180 // CHECK: printf("%c", 'a');
181 // CHECK: printf("%-f", 1.23);
182 // CHECK: printf("%s", "foo");
183 // CHECK: printf("%1$p", (void *)0);
184 // CHECK: printf("%lX", val);
185 // CHECK: printf("%zu", (size_t) 42);
186 // CHECK: printf("%jd", (intmax_t) 42);
187 // CHECK: printf("%ju", (uintmax_t) 42);
188 // CHECK: printf("%td", (ptrdiff_t) 42);
189 // CHECK: printf("%zu", (my_size_type) 42);
190 // CHECK: printf("%jd", (my_intmax_type) 42);
191 // CHECK: printf("%ju", (my_uintmax_type) 42);
192 // CHECK: printf("%td", (my_ptrdiff_type) 42);
193 // CHECK: printf("%d", (my_int_type) 42);
194 // CHECK: printf("%s", "foo");
195 // CHECK: printf("%lo", (long) 42);
196 // CHECK: printf("%ld", (long) 42);
197 // CHECK: printf("%lx", (long) 42);
198 // CHECK: printf("%lX", (long) 42);
199 // CHECK: printf("%lu", (unsigned long) 42);
200 // CHECK: printf("%lu", (unsigned long) 42);
201 // CHECK: printf("%LF", (long double) 42);
202 // CHECK: printf("%Le", (long double) 42);
203 // CHECK: printf("%LE", (long double) 42);
204 // CHECK: printf("%Lg", (long double) 42);
205 // CHECK: printf("%LG", (long double) 42);
206 // CHECK: printf("%La", (long double) 42);
207 // CHECK: printf("%LA", (long double) 42);
208 
209 // CHECK: scanf("%s", str);
210 // CHECK: scanf("%hd", &shortVar);
211 // CHECK: scanf("%hu", &uShortVar);
212 // CHECK: scanf("%d", &intVar);
213 // CHECK: scanf("%u", &uIntVar);
214 // CHECK: scanf("%f", &floatVar);
215 // CHECK: scanf("%lf", &doubleVar);
216 // CHECK: scanf("%Lf", &longDoubleVar);
217 // CHECK: scanf("%ld", &longVar);
218 // CHECK: scanf("%lu", &uLongVar);
219 // CHECK: scanf("%lld", &longLongVar);
220 // CHECK: scanf("%llu", &uLongLongVar);
221 // CHECK: scanf("%zu", &sizeVar);
222 // CHECK: scanf("%jd", &intmaxVar);
223 // CHECK: scanf("%ju", &uIntmaxVar);
224 // CHECK: scanf("%td", &ptrdiffVar);
225 // CHECK: scanf("%zu", (my_size_type*)&sizeVar);
226 // CHECK: scanf("%jd", (my_intmax_type*)&intmaxVar);
227 // CHECK: scanf("%ju", (my_uintmax_type*)&uIntmaxVar);
228 // CHECK: scanf("%td", (my_ptrdiff_type*)&ptrdiffVar);
229 // CHECK: scanf("%d", (my_int_type*)&intVar);
230 // CHECK: scanf("%lo", &longVar);
231 // CHECK: scanf("%lu", &longVar);
232 // CHECK: scanf("%lx", &longVar);
233 // CHECK: scanf("%lX", &longVar);
234 // CHECK: scanf("%li", &uLongVar);
235 // CHECK: scanf("%ld", &uLongVar);
236 // CHECK: scanf("%LF", &longDoubleVar);
237 // CHECK: scanf("%Le", &longDoubleVar);
238 // CHECK: scanf("%LE", &longDoubleVar);
239 // CHECK: scanf("%Lg", &longDoubleVar);
240 // CHECK: scanf("%LG", &longDoubleVar);
241 // CHECK: scanf("%La", &longDoubleVar);
242 // CHECK: scanf("%LA", &longDoubleVar);
243