File: nonnull.c

package info (click to toggle)
llvm-toolchain-3.4 1%3A3.4.2-13
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 253,236 kB
  • ctags: 276,203
  • sloc: cpp: 1,665,580; ansic: 298,647; asm: 206,157; objc: 84,350; python: 73,119; sh: 23,466; perl: 5,679; makefile: 5,542; ml: 5,250; pascal: 2,467; lisp: 1,420; xml: 679; cs: 236; csh: 117
file content (22 lines) | stat: -rw-r--r-- 609 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
// RUN: %clang_cc1 -fsyntax-only -verify %s
// rdar://9584012

typedef struct {
	char *str;
} Class;

typedef union {
	Class *object;
} Instance __attribute__((transparent_union));

__attribute__((nonnull(1))) void Class_init(Instance this, char *str) {
	this.object->str = str;
}

int main(void) {
	Class *obj;
	Class_init(0, "Hello World"); // expected-warning {{null passed to a callee which requires a non-null argument}}
	Class_init(obj, "Hello World");
}

void foo(const char *str) __attribute__((nonnull("foo"))); // expected-error{{'nonnull' attribute requires parameter 1 to be an integer constant}}