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TheRock/compiler/amd-llvm/clang/test/Sema/format-strings-nonnull.c
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81 lines
3.3 KiB
C

// RUN: %clang_cc1 -fsyntax-only --std=c23 -verify -Wnonnull -Wno-format-security %s
// RUN: %clang_cc1 -fsyntax-only --std=c23 -verify -Wnonnull -Wno-format-security -fexperimental-new-constant-interpreter %s
#define NULL (void*)0
typedef struct _FILE FILE;
typedef __SIZE_TYPE__ size_t;
typedef __builtin_va_list va_list;
int printf(char const* restrict, ...);
int __builtin_printf(char const* restrict, ...);
int fprintf(FILE* restrict, char const* restrict, ...);
int snprintf(char* restrict, size_t, char const* restrict, ...);
int sprintf(char* restrict, char const* restrict, ...);
int vprintf(char const* restrict, __builtin_va_list);
int vfprintf(FILE* restrict, char const* restrict, __builtin_va_list);
int vsnprintf(char* restrict, size_t, char const* restrict, __builtin_va_list);
int vsprintf(char* restrict, char const* restrict, __builtin_va_list);
int scanf(char const* restrict, ...);
int fscanf(FILE* restrict, char const* restrict, ...);
int sscanf(char const* restrict, char const* restrict, ...);
int vscanf(char const* restrict, __builtin_va_list);
int vfscanf(FILE* restrict, char const* restrict, __builtin_va_list);
int vsscanf(char const* restrict, char const* restrict, __builtin_va_list);
void check_format_string(FILE *fp, va_list ap) {
char buf[256];
int num;
char* const fmt = NULL;
printf(fmt);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
__builtin_printf(NULL, "xxd");
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
fprintf(fp, NULL, 25);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
sprintf(NULL, NULL, 42);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
// expected-warning@-2{{null passed to a callee that requires a non-null argument}}
snprintf(buf, 10, 0, 42);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
vprintf(fmt, ap);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
vfprintf(fp, 0, ap);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
vsprintf(buf, nullptr, ap);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
vsnprintf(buf, 10, fmt, ap);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
scanf(NULL);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
fscanf(nullptr, nullptr);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
// expected-warning@-2{{null passed to a callee that requires a non-null argument}}
sscanf(NULL, "%d %s", &num, buf);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
sscanf(buf, fmt);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
vscanf(NULL, ap);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
vfscanf(fp, fmt, ap);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
vsscanf(buf, NULL, ap);
// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
}