1 // This test case crashes if strncasecmp is modeled in StdCLibraryFunctions.
2 // Either we fix CStringChecker to handle the call prerequisites in
3 // checkPreCall, or we must not evaluate any pure functions in
4 // StdCLibraryFunctions that are also handled in CStringChecker.
5
6 // RUN: %clang_analyze_cc1 %s \
7 // RUN: -analyzer-checker=core \
8 // RUN: -analyzer-checker=unix.StdCLibraryFunctions \
9 // RUN: -analyzer-checker=unix.cstring.NullArg \
10 // RUN: -analyzer-config unix.StdCLibraryFunctions:ModelPOSIX=true \
11 // RUN: -triple x86_64-unknown-linux-gnu \
12 // RUN: -verify
13
14 typedef __typeof(sizeof(int)) size_t;
15 int strncasecmp(const char *s1, const char *s2, size_t n);
16
strncasecmp_null_argument(char * a,size_t n)17 int strncasecmp_null_argument(char *a, size_t n) {
18 char *b = 0;
19 return strncasecmp(a, b, n); // expected-warning{{Null pointer passed as 2nd argument to string comparison function}}
20 }
21