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 typedef __WCHAR_TYPE__ wchar_t;
18 
test()19 void test() {
20   // Basic types
21   printf("%s", (int) 123);
22   printf("abc%0f", "testing testing 123");
23   printf("%u", (long) -12);
24   printf("%p", 123);
25   printf("%c\n", "x");
26   printf("%c\n", 1.23);
27 
28   // Larger types
29   printf("%+.2d", (unsigned long long) 123456);
30   printf("%1d", (long double) 1.23);
31 
32   // Flag handling
33   printf("%0+s", (unsigned) 31337); // 0 flag should stay
34   printf("%#p", (void *) 0);
35   printf("% +f", 1.23); // + flag should stay
36   printf("%0-f", 1.23); // - flag should stay
37 
38   // Positional arguments
39 #pragma clang diagnostic push // Don't warn about using positional arguments.
40 #pragma clang diagnostic ignored "-Wformat-non-iso"
41   printf("%1$f:%2$.*3$f:%4$.*3$f\n", 1, 2, 3, 4);
42 #pragma clang diagnostic pop
43 
44   // Precision
45   printf("%10.5d", 1l); // (bug 7394)
46   printf("%.2c", 'a');
47 
48   // Ignored flags
49   printf("%0-f", 1.23);
50 
51   // Bad length modifiers
52   printf("%hhs", "foo");
53 #pragma clang diagnostic push // Don't warn about using positional arguments.
54 #pragma clang diagnostic ignored "-Wformat-non-iso"
55   printf("%1$zp", (void *)0);
56 #pragma clang diagnostic pop
57 
58   // Preserve the original formatting for unsigned integers.
59   unsigned long val = 42;
60   printf("%X", val);
61 
62   // size_t, etc.
63   printf("%f", (size_t) 42);
64   printf("%f", (intmax_t) 42);
65   printf("%f", (uintmax_t) 42);
66   printf("%f", (ptrdiff_t) 42);
67 
68   // Look beyond the first typedef.
69   typedef size_t my_size_type;
70   typedef intmax_t my_intmax_type;
71   typedef uintmax_t my_uintmax_type;
72   typedef ptrdiff_t my_ptrdiff_type;
73   typedef int my_int_type;
74   printf("%f", (my_size_type) 42);
75   printf("%f", (my_intmax_type) 42);
76   printf("%f", (my_uintmax_type) 42);
77   printf("%f", (my_ptrdiff_type) 42);
78   printf("%f", (my_int_type) 42);
79 
80   // string
81   printf("%ld", "foo");
82 
83   // Preserve the original choice of conversion specifier.
84   printf("%o", (long) 42);
85   printf("%u", (long) 42);
86   printf("%x", (long) 42);
87   printf("%X", (long) 42);
88   printf("%i", (unsigned long) 42);
89   printf("%d", (unsigned long) 42);
90   printf("%F", (long double) 42);
91   printf("%e", (long double) 42);
92   printf("%E", (long double) 42);
93   printf("%g", (long double) 42);
94   printf("%G", (long double) 42);
95   printf("%a", (long double) 42);
96   printf("%A", (long double) 42);
97 }
98 
99 int scanf(char const *, ...);
100 
test2(int intSAParm[static2])101 void test2(int intSAParm[static 2]) {
102   char str[100];
103   char *vstr = "abc";
104   short shortVar;
105   unsigned short uShortVar;
106   int intVar;
107   int intAVar[2];
108   unsigned uIntVar;
109   float floatVar;
110   double doubleVar;
111   long double longDoubleVar;
112   long longVar;
113   unsigned long uLongVar;
114   long long longLongVar;
115   unsigned long long uLongLongVar;
116   size_t sizeVar;
117   intmax_t intmaxVar;
118   uintmax_t uIntmaxVar;
119   ptrdiff_t ptrdiffVar;
120   enum {A, B, C} enumVar;
121 
122   // Some string types.
123   scanf("%lf", str);
124   scanf("%lf", vstr);
125   scanf("%ls", str);
126   scanf("%ls", str);
127 
128   // Some integer types.
129   scanf("%f", &shortVar);
130   scanf("%f", &uShortVar);
131   scanf("%p", &intVar);
132   scanf("%f", intAVar);
133   scanf("%f", intSAParm);
134   scanf("%Lf", &uIntVar);
135   scanf("%ld", &floatVar);
136   scanf("%f", &doubleVar);
137   scanf("%d", &longDoubleVar);
138   scanf("%f", &longVar);
139   scanf("%f", &uLongVar);
140   scanf("%f", &longLongVar);
141   scanf("%f", &uLongLongVar);
142   scanf("%d", &enumVar); // FIXME: We ought to fix specifiers for enums.
143 
144   // Some named ints.
145   scanf("%f", &sizeVar);
146   scanf("%f", &intmaxVar);
147   scanf("%f", &uIntmaxVar);
148   scanf("%f", &ptrdiffVar);
149 
150   // Look beyond the first typedef for named integer types.
151   typedef size_t my_size_type;
152   typedef intmax_t my_intmax_type;
153   typedef uintmax_t my_uintmax_type;
154   typedef ptrdiff_t my_ptrdiff_type;
155   typedef int my_int_type;
156   scanf("%f", (my_size_type*)&sizeVar);
157   scanf("%f", (my_intmax_type*)&intmaxVar);
158   scanf("%f", (my_uintmax_type*)&uIntmaxVar);
159   scanf("%f", (my_ptrdiff_type*)&ptrdiffVar);
160   scanf("%f", (my_int_type*)&intVar);
161 
162   // Preserve the original formatting.
163   scanf("%o", &longVar);
164   scanf("%u", &longVar);
165   scanf("%x", &longVar);
166   scanf("%X", &longVar);
167   scanf("%i", &uLongVar);
168   scanf("%d", &uLongVar);
169   scanf("%F", &longDoubleVar);
170   scanf("%e", &longDoubleVar);
171   scanf("%E", &longDoubleVar);
172   scanf("%g", &longDoubleVar);
173   scanf("%G", &longDoubleVar);
174   scanf("%a", &longDoubleVar);
175   scanf("%A", &longDoubleVar);
176 }
177 
178 // Validate the fixes.
179 // CHECK: printf("%d", (int) 123);
180 // CHECK: printf("abc%s", "testing testing 123");
181 // CHECK: printf("%ld", (long) -12);
182 // CHECK: printf("%d", 123);
183 // CHECK: printf("%s\n", "x");
184 // CHECK: printf("%f\n", 1.23);
185 // CHECK: printf("%+.2lld", (unsigned long long) 123456);
186 // CHECK: printf("%1Lf", (long double) 1.23);
187 // CHECK: printf("%0u", (unsigned) 31337);
188 // CHECK: printf("%p", (void *) 0);
189 // CHECK: printf("%+f", 1.23);
190 // CHECK: printf("%-f", 1.23);
191 // CHECK: printf("%1$d:%2$.*3$d:%4$.*3$d\n", 1, 2, 3, 4);
192 // CHECK: printf("%10.5ld", 1l);
193 // CHECK: printf("%c", 'a');
194 // CHECK: printf("%-f", 1.23);
195 // CHECK: printf("%s", "foo");
196 // CHECK: printf("%1$p", (void *)0);
197 // CHECK: printf("%lX", val);
198 // CHECK: printf("%zu", (size_t) 42);
199 // CHECK: printf("%jd", (intmax_t) 42);
200 // CHECK: printf("%ju", (uintmax_t) 42);
201 // CHECK: printf("%td", (ptrdiff_t) 42);
202 // CHECK: printf("%zu", (my_size_type) 42);
203 // CHECK: printf("%jd", (my_intmax_type) 42);
204 // CHECK: printf("%ju", (my_uintmax_type) 42);
205 // CHECK: printf("%td", (my_ptrdiff_type) 42);
206 // CHECK: printf("%d", (my_int_type) 42);
207 // CHECK: printf("%s", "foo");
208 // CHECK: printf("%lo", (long) 42);
209 // CHECK: printf("%ld", (long) 42);
210 // CHECK: printf("%lx", (long) 42);
211 // CHECK: printf("%lX", (long) 42);
212 // CHECK: printf("%lu", (unsigned long) 42);
213 // CHECK: printf("%lu", (unsigned long) 42);
214 // CHECK: printf("%LF", (long double) 42);
215 // CHECK: printf("%Le", (long double) 42);
216 // CHECK: printf("%LE", (long double) 42);
217 // CHECK: printf("%Lg", (long double) 42);
218 // CHECK: printf("%LG", (long double) 42);
219 // CHECK: printf("%La", (long double) 42);
220 // CHECK: printf("%LA", (long double) 42);
221 
222 // CHECK: scanf("%99s", str);
223 // CHECK: scanf("%s", vstr);
224 // CHECK: scanf("%99s", str);
225 // CHECK: scanf("%99s", str);
226 // CHECK: scanf("%hd", &shortVar);
227 // CHECK: scanf("%hu", &uShortVar);
228 // CHECK: scanf("%d", &intVar);
229 // CHECK: scanf("%d", intAVar);
230 // CHECK: scanf("%d", intSAParm);
231 // CHECK: scanf("%u", &uIntVar);
232 // CHECK: scanf("%f", &floatVar);
233 // CHECK: scanf("%lf", &doubleVar);
234 // CHECK: scanf("%Lf", &longDoubleVar);
235 // CHECK: scanf("%ld", &longVar);
236 // CHECK: scanf("%lu", &uLongVar);
237 // CHECK: scanf("%lld", &longLongVar);
238 // CHECK: scanf("%llu", &uLongLongVar);
239 // CHECK: scanf("%d", &enumVar);
240 // CHECK: scanf("%zu", &sizeVar);
241 // CHECK: scanf("%jd", &intmaxVar);
242 // CHECK: scanf("%ju", &uIntmaxVar);
243 // CHECK: scanf("%td", &ptrdiffVar);
244 // CHECK: scanf("%zu", (my_size_type*)&sizeVar);
245 // CHECK: scanf("%jd", (my_intmax_type*)&intmaxVar);
246 // CHECK: scanf("%ju", (my_uintmax_type*)&uIntmaxVar);
247 // CHECK: scanf("%td", (my_ptrdiff_type*)&ptrdiffVar);
248 // CHECK: scanf("%d", (my_int_type*)&intVar);
249 // CHECK: scanf("%lo", &longVar);
250 // CHECK: scanf("%lu", &longVar);
251 // CHECK: scanf("%lx", &longVar);
252 // CHECK: scanf("%lX", &longVar);
253 // CHECK: scanf("%li", &uLongVar);
254 // CHECK: scanf("%ld", &uLongVar);
255 // CHECK: scanf("%LF", &longDoubleVar);
256 // CHECK: scanf("%Le", &longDoubleVar);
257 // CHECK: scanf("%LE", &longDoubleVar);
258 // CHECK: scanf("%Lg", &longDoubleVar);
259 // CHECK: scanf("%LG", &longDoubleVar);
260 // CHECK: scanf("%La", &longDoubleVar);
261 // CHECK: scanf("%LA", &longDoubleVar);
262