derek.holloway
7502bf64a4
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60 lines
2.4 KiB
C
60 lines
2.4 KiB
C
// RUN: %clang_cc1 -fsyntax-only -verify -triple i386-apple-darwin9 %s
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// RUN: %clang_cc1 -fsyntax-only -verify -triple thumbv6-apple-ios4.0 %s
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// RUN: %clang_cc1 -fsyntax-only -verify -triple x86_64-mingw32 -DMS %s
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// RUN: %clang_cc1 -fsyntax-only -verify -triple i686-pc-win32 -DMS %s
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// RUN: %clang_cc1 -fsyntax-only -verify -triple i686-linux-gnu -DALLOWED %s
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// RUN: %clang_cc1 -fsyntax-only -verify -triple x86_64-unknown-freebsd -DALLOWED %s
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int printf(const char *restrict, ...);
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int scanf(const char * restrict, ...) ;
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void test(void) {
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long notLongEnough = 1;
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long long quiteLong = 2;
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printf("%Ld", notLongEnough); // expected-warning {{format specifies type 'long long' but the argument has type 'long'}}
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printf("%Ld", quiteLong);
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#ifndef ALLOWED
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// expected-warning@-4 {{length modifier 'L' results in undefined behavior or no effect with 'd' conversion specifier}}
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// expected-note@-5 {{did you mean to use 'll'?}}
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// expected-warning@-6 {{length modifier 'L' results in undefined behavior or no effect with 'd' conversion specifier}}
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// expected-note@-7 {{did you mean to use 'll'?}}
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#endif
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#ifndef MS
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printf("%Z\n", quiteLong); // expected-warning{{invalid conversion specifier 'Z'}}
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#endif
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}
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void testAlwaysInvalid(void) {
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// We should not suggest 'll' here!
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printf("%Lc", 'a'); // expected-warning {{length modifier 'L' results in undefined behavior or no effect with 'c' conversion specifier}}
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printf("%Ls", "a"); // expected-warning {{length modifier 'L' results in undefined behavior or no effect with 's' conversion specifier}}
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}
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#ifdef ALLOWED
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// PR 9466: clang: doesn't know about %Lu, %Ld, and %Lx
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void printf_longlong(long long x, unsigned long long y) {
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printf("%Ld", y); // no-warning
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printf("%Lu", y); // no-warning
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printf("%Lx", y); // no-warning
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printf("%Ld", x); // no-warning
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printf("%Lu", x); // no-warning
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printf("%Lx", x); // no-warning
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printf("%Ls", "hello"); // expected-warning {{length modifier 'L' results in undefined behavior or no effect with 's' conversion specifier}}
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}
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void scanf_longlong(long long *x, unsigned long long *y) {
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scanf("%Ld", y); // no-warning
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scanf("%Lu", y); // no-warning
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scanf("%Lx", y); // no-warning
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scanf("%Ld", x); // no-warning
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scanf("%Lu", x); // no-warning
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scanf("%Lx", x); // no-warning
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scanf("%Ls", "hello"); // expected-warning {{length modifier 'L' results in undefined behavior or no effect with 's' conversion specifier}}
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}
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#endif
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