[clang] [clang][analyzer] Change modeling of 'fileno' in checkers. (PR #81842)

[Ben Shi via cfe-commits]

=?utf-8?q?Bal=C3=A1zs_K=C3=A9ri?= <balazs.keri at ericsson.com>
Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/81842 at github.com>


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@@ -268,6 +268,16 @@ void test_clearerr(FILE *F) {
                                    // expected-warning at -1{{FALSE}}
 }
 
+void test_fileno(FILE *F) {
+  errno = 0;
+  int A = fileno(F);
+  clang_analyzer_eval(F != NULL); // expected-warning{{TRUE}}
+  clang_analyzer_eval(A >= 0); // expected-warning{{TRUE}}
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benshi001 wrote:

It looks better to making the comment lines begin from the same column.

https://github.com/llvm/llvm-project/pull/81842