diff --git a/components/cplusplus/Mail.h b/components/cplusplus/Mail.h
index e6b11af9e8e28ee3df8fe93ef645bd216492a0fc..a4c98e4007ea5d925cc06ffe06ba01d4ad493106 100644
--- a/components/cplusplus/Mail.h
+++ b/components/cplusplus/Mail.h
@@ -28,7 +28,7 @@ template<typename T, uint32_t queue_sz>
 class Mail {
 public:
     /** Create and Initialise Mail queue. */
-    Mail(const char* name = "")
+    Mail(const char *name = "")
     {
         rt_mb_init(&mID, name, mPool, queue_sz, RT_IPC_FLAG_FIFO);
     }
diff --git a/components/cplusplus/Mutex.h b/components/cplusplus/Mutex.h
index 4a54c41ebbbbb665d5564e2085d4b104450bea55..6fee3151555292e5f7fb9cb55845e4dd59e99e01 100644
--- a/components/cplusplus/Mutex.h
+++ b/components/cplusplus/Mutex.h
@@ -21,7 +21,7 @@ namespace rtthread {
 class Mutex {
 public:
     /** Create and Initialize a Mutex object */
-    Mutex(const char* name = "mutex");
+    Mutex(const char *name = "mutex");
     ~Mutex();
 
     /** Wait until a Mutex becomes available.
diff --git a/components/cplusplus/Queue.h b/components/cplusplus/Queue.h
index fba64bf51b38559daed3374e14e9c1087ea74448..351e3ec66b1c4585ad97fac97aaca1137ee4756a 100644
--- a/components/cplusplus/Queue.h
+++ b/components/cplusplus/Queue.h
@@ -68,7 +68,7 @@ public:
 private:
     struct rt_messagequeue mID;
 
-    char mPool[(sizeof(struct rt_messagequeue)+sizeof(T)) * queue_sz];
+    char mPool[(sizeof(struct rt_messagequeue) + sizeof(T)) * queue_sz];
 };
 
 }
diff --git a/components/cplusplus/Thread.h b/components/cplusplus/Thread.h
index 9b6cf30884c971ee9f3644707d00e12508cd8f95..71ee50e1f987ee55473ed61a83e28c40d25d100a 100644
--- a/components/cplusplus/Thread.h
+++ b/components/cplusplus/Thread.h
@@ -20,7 +20,7 @@ namespace rtthread
 class Thread
 {
 public:
-    typedef void (*thread_func_t) (void *param);
+    typedef void (*thread_func_t)(void *param);
 
     /** Allocate a new thread without starting execution
       @param   priority       initial priority of the thread function. (default: osPriorityNormal).
@@ -28,14 +28,14 @@ public:
       @param   stack_pointer  pointer to the stack area to be used by this thread (default: NULL).
     */
     Thread(rt_uint32_t stack_size = 2048,
-           rt_uint8_t  priority = (RT_THREAD_PRIORITY_MAX * 2)/3,
+           rt_uint8_t  priority = (RT_THREAD_PRIORITY_MAX * 2) / 3,
            rt_uint32_t tick = 20,
            const char *name = "th");
 
     Thread(void (*entry)(void *p),
            void *p = RT_NULL,
            rt_uint32_t stack_size = 2048,
-           rt_uint8_t  priority = (RT_THREAD_PRIORITY_MAX * 2)/3,
+           rt_uint8_t  priority = (RT_THREAD_PRIORITY_MAX * 2) / 3,
            rt_uint32_t tick = 20,
            const char *name = "th");
 
diff --git a/components/cplusplus/crt.cpp b/components/cplusplus/crt.cpp
index cac1e5fa575e010db472431e0aaf5e2eef95fe9f..d4cb84f77c384223dcf021ec32c5e3ea04f7779e 100644
--- a/components/cplusplus/crt.cpp
+++ b/components/cplusplus/crt.cpp
@@ -26,7 +26,7 @@ void operator delete(void *ptr)
     rt_free(ptr);
 }
 
-void operator delete[] (void *ptr)
+void operator delete[](void *ptr)
 {
     return rt_free(ptr);
 }
diff --git a/components/cplusplus/crt.h b/components/cplusplus/crt.h
index 6228dab2a98a5f115a5820625708df219587dbdf..84e5a4b820abfdaa13dc6bb0e71b28589ddb8bf8 100644
--- a/components/cplusplus/crt.h
+++ b/components/cplusplus/crt.h
@@ -18,7 +18,7 @@ void *operator new(size_t size);
 void *operator new[](size_t size);
 
 void operator delete(void * ptr);
-void operator delete[] (void *ptr);
+void operator delete[](void *ptr);
 
 extern "C" void __cxa_pure_virtual(void);
 extern "C" int  cplusplus_system_init(void);
diff --git a/components/cplusplus/crt_init.c b/components/cplusplus/crt_init.c
index 3294b51a40823f75d864d45a6fa4dacb23d6c9ca..fe1293245737a983d59351e2c82aa115b54d4601 100755
--- a/components/cplusplus/crt_init.c
+++ b/components/cplusplus/crt_init.c
@@ -50,11 +50,11 @@ RT_WEAK int cplusplus_system_init(void)
 
     for (; base != lim; base++)
     {
-        PROC *proc = (PROC*)((const char*)base + *base);
+        PROC *proc = (PROC *)((const char *)base + *base);
         (*proc)();
     }
 #elif defined(__GNUC__)
-    typedef void(*pfunc) ();
+    typedef void(*pfunc)();
     extern pfunc __ctors_start__[];
     extern pfunc __ctors_end__[];
     pfunc *p;