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1 // RUN: %clang_cc1 -fsyntax-only -verify -triple i386-apple-darwin9 %s
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2 // RUN: %clang_cc1 -fsyntax-only -verify -triple thumbv6-apple-ios4.0 %s
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3 // RUN: %clang_cc1 -fsyntax-only -verify -triple x86_64-mingw32 -DMS %s
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4 // RUN: %clang_cc1 -fsyntax-only -verify -triple i686-pc-win32 -DMS %s
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5
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6 // RUN: %clang_cc1 -fsyntax-only -verify -triple i686-linux-gnu -DALLOWED %s
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7 // RUN: %clang_cc1 -fsyntax-only -verify -triple x86_64-unknown-freebsd -DALLOWED %s
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8
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9 int printf(const char *restrict, ...);
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10 int scanf(const char * restrict, ...) ;
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11
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12 void test() {
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13 long notLongEnough = 1;
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14 long long quiteLong = 2;
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15
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16 printf("%Ld", notLongEnough); // expected-warning {{format specifies type 'long long' but the argument has type 'long'}}
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17 printf("%Ld", quiteLong);
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18
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19 #ifndef ALLOWED
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20 // expected-warning@-4 {{length modifier 'L' results in undefined behavior or no effect with 'd' conversion specifier}}
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21 // expected-note@-5 {{did you mean to use 'll'?}}
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22
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23 // expected-warning@-6 {{length modifier 'L' results in undefined behavior or no effect with 'd' conversion specifier}}
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24 // expected-note@-7 {{did you mean to use 'll'?}}
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25 #endif
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26
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27 #ifndef MS
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28 printf("%Z\n", quiteLong); // expected-warning{{invalid conversion specifier 'Z'}}
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29 #endif
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30 }
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31
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32 void testAlwaysInvalid() {
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33 // We should not suggest 'll' here!
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34 printf("%Lc", 'a'); // expected-warning {{length modifier 'L' results in undefined behavior or no effect with 'c' conversion specifier}}
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35 printf("%Ls", "a"); // expected-warning {{length modifier 'L' results in undefined behavior or no effect with 's' conversion specifier}}
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36 }
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37
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38 #ifdef ALLOWED
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39 // PR 9466: clang: doesn't know about %Lu, %Ld, and %Lx
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40 void printf_longlong(long long x, unsigned long long y) {
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41 printf("%Ld", y); // no-warning
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42 printf("%Lu", y); // no-warning
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43 printf("%Lx", y); // no-warning
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44 printf("%Ld", x); // no-warning
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45 printf("%Lu", x); // no-warning
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46 printf("%Lx", x); // no-warning
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47 printf("%Ls", "hello"); // expected-warning {{length modifier 'L' results in undefined behavior or no effect with 's' conversion specifier}}
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48 }
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49
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50 void scanf_longlong(long long *x, unsigned long long *y) {
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51 scanf("%Ld", y); // no-warning
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52 scanf("%Lu", y); // no-warning
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53 scanf("%Lx", y); // no-warning
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54 scanf("%Ld", x); // no-warning
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55 scanf("%Lu", x); // no-warning
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56 scanf("%Lx", x); // no-warning
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57 scanf("%Ls", "hello"); // expected-warning {{length modifier 'L' results in undefined behavior or no effect with 's' conversion specifier}}
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58 }
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59 #endif
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