derek.holloway
7502bf64a4
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50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify -Wnonnull %s
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#ifdef __cplusplus
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# define EXTERN_C extern "C"
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#else
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# define EXTERN_C extern
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#endif
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typedef struct _FILE FILE;
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typedef __SIZE_TYPE__ size_t;
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typedef __builtin_va_list va_list;
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EXTERN_C int printf(const char *, ...);
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EXTERN_C int fprintf(FILE *, const char *restrict, ...);
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EXTERN_C int sprintf(char* restrict, char const* res, ...);
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EXTERN_C int vfprintf(FILE* restrict, char const* res, __builtin_va_list);
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EXTERN_C int scanf(char const *restrict, ...);
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EXTERN_C int fscanf(FILE* restrict, char const* res, ...);
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EXTERN_C int sscanf(char const* restrict, char const* res, ...);
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void test(FILE *fp, va_list ap) {
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char buf[256];
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int num;
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__builtin_printf(__null, "x");
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// expected-warning@-1 {{null passed to a callee that requires a non-null argument}}
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printf(__null, "xxd");
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// expected-warning@-1 {{null passed to a callee that requires a non-null argument}}
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fprintf(fp, __null, 42);
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// expected-warning@-1 {{null passed to a callee that requires a non-null argument}}
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sprintf(buf, __null);
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// expected-warning@-1 {{null passed to a callee that requires a non-null argument}}
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scanf(__null);
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// expected-warning@-1 {{null passed to a callee that requires a non-null argument}}
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fscanf(fp, __null);
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// expected-warning@-1 {{null passed to a callee that requires a non-null argument}}
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vfprintf(__null, "xxd", ap);
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// expected-warning@-1 {{null passed to a callee that requires a non-null argument}}
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sscanf(__null, "%d", &num);
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// expected-warning@-1 {{null passed to a callee that requires a non-null argument}}
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}
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