File: explain-svals.c

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (25 lines) | stat: -rw-r--r-- 1,072 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
// RUN: %clang_cc1 -triple i386-apple-darwin10 -analyze -analyzer-checker=core.builtin,debug.ExprInspection,unix.cstring -verify %s

struct S {
  int z;
};

void clang_analyzer_explain_int(int);
void clang_analyzer_explain_voidp(void *);
void clang_analyzer_explain_S(struct S);

int glob;

void test_1(int param, void *ptr) {
  clang_analyzer_explain_voidp(&glob); // expected-warning-re{{{{^pointer to global variable 'glob'$}}}}
  clang_analyzer_explain_int(param);   // expected-warning-re{{{{^argument 'param'$}}}}
  clang_analyzer_explain_voidp(ptr);   // expected-warning-re{{{{^argument 'ptr'$}}}}
  if (param == 42)
    clang_analyzer_explain_int(param); // expected-warning-re{{{{^signed 32-bit integer '42'$}}}}
}

void test_2(struct S s) {
  clang_analyzer_explain_S(s);      //expected-warning-re{{{{^lazily frozen compound value of parameter 's'$}}}}
  clang_analyzer_explain_voidp(&s); // expected-warning-re{{{{^pointer to parameter 's'$}}}}
  clang_analyzer_explain_int(s.z);  // expected-warning-re{{{{^initial value of field 'z' of parameter 's'$}}}}
}