Creating branches/google/stable and tags/google/stable/2019-05-14 from r360103upstream/google/stable

git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/google/stable@360714 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 37 insertions, 0 deletions

diff --git a/docs/analyzer/checkers/unix_api_example.c b/docs/analyzer/checkers/unix_api_example.c
new file mode 100644
index 0000000000..66ed56fd86
--- /dev/null
+++ b/docs/analyzer/checkers/unix_api_example.c
@@ -0,0 +1,37 @@
+
+// Currently the check is performed for apple targets only.
+void test(const char *path) {
+  int fd = open(path, O_CREAT);
+    // warn: call to 'open' requires a third argument when the
+    // 'O_CREAT' flag is set
+}
+
+void f();
+
+void test() {
+  pthread_once_t pred = {0x30B1BCBA, {0}};
+  pthread_once(&pred, f);
+    // warn: call to 'pthread_once' uses the local variable
+}
+
+void test() {
+  void *p = malloc(0); // warn: allocation size of 0 bytes
+}
+
+void test() {
+  void *p = calloc(0, 42); // warn: allocation size of 0 bytes
+}
+
+void test() {
+  void *p = malloc(1);
+  p = realloc(p, 0); // warn: allocation size of 0 bytes
+}
+
+void test() {
+  void *p = alloca(0); // warn: allocation size of 0 bytes
+}
+
+void test() {
+  void *p = valloc(0); // warn: allocation size of 0 bytes
+}
+