Add StreamChecker. This checker models and checks stream manipulation functions.

This is the start.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106082 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 12 insertions, 0 deletions

diff --git a/test/Analysis/stream.c b/test/Analysis/stream.c
new file mode 100644
index 0000000000..17876688dd
--- /dev/null
+++ b/test/Analysis/stream.c
@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -analyze -analyzer-check-objc-mem -analyzer-experimental-checks -analyzer-store region -verify %s
+
+typedef __typeof__(sizeof(int)) size_t;
+typedef struct _IO_FILE FILE;
+FILE *fopen(const char *path, const char *mode);
+size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream);
+
+void f1(void) {
+  FILE *p = fopen("foo", "r");
+  char buf[1024];
+  fread(buf, 1, 1, p); // expected-warning {{Stream pointer might be NULL.}}
+}