From f823968941f88b0a57f8f440af54be624b8f0ef6 Mon Sep 17 00:00:00 2001
From: SongXiangYing <java_songxiangying@163.com>
Date: Wed, 21 Jan 2026 16:10:08 +0800
Subject: [PATCH] no message

---
 b.cpp         | 34 ++++++++++++++++++++++++++++++++++
 c.cpp         |  5 +++++
 测试git.txt |  0
 3 files changed, 39 insertions(+)
 create mode 100644 b.cpp
 create mode 100644 c.cpp
 create mode 100644 测试git.txt

diff --git a/b.cpp b/b.cpp
new file mode 100644
index 0000000..0bdd570
--- /dev/null
+++ b/b.cpp
@@ -0,0 +1,34 @@
+void f1(struct fred_t *p)
+{
+    // dereference p and then check if it's NULL
+    int x = p->x;
+    if (p)
+        do_something(x);
+}
+
+void f2()
+{
+    const char *p = NULL;
+    for (int i = 0; str[i] != '\0'; i++)
+    {
+        if (str[i] == ' ')
+        {
+            p = str + i;
+            break;
+        }
+    }
+
+    // p is NULL if str doesn't have a space. If str always has a
+    // a space then the condition (str[i] != '\0') would be redundant
+    return p[1];
+}
+
+void f3(int a)
+{
+    struct fred_t *p = NULL;
+    if (a == 1)
+        p = fred1;
+
+    // if a is not 1 then p is NULL
+    p->x = 0;
+}
\ No newline at end of file
diff --git a/c.cpp b/c.cpp
new file mode 100644
index 0000000..da05479
--- /dev/null
+++ b/c.cpp
@@ -0,0 +1,5 @@
+void f()
+{
+    char *p;
+    *p = 0;
+}
diff --git a/测试git.txt b/测试git.txt
new file mode 100644
index 0000000..e69de29