MicrosoftDocs
diff --git a/‎docs/c-runtime-library/reference/alloca.md
Lines changed: 12 additions & 13 deletions b/‎docs/c-runtime-library/reference/alloca.md
Lines changed: 12 additions & 13 deletions
@@ -1,14 +1,13 @@
 ---
 description: "Learn more about: _alloca"
 title: "_alloca"
-ms.date: "11/04/2016"
+ms.date: 01/05/2022
 api_name: ["_alloca"]
 api_location: ["msvcrt.dll", "msvcr80.dll", "msvcr90.dll", "msvcr100.dll", "msvcr100_clr0400.dll", "msvcr110.dll", "msvcr110_clr0400.dll", "msvcr120.dll", "msvcr120_clr0400.dll", "ucrtbase.dll"]
 api_type: ["DLLExport"]
 topic_type: ["apiref"]
 f1_keywords: ["_alloca", "alloca"]
 helpviewer_keywords: ["memory allocation, stack", "alloca function", "_alloca function"]
-ms.assetid: 74488eb1-b71f-4515-88e1-cdd03b6f8225
 ---
 # `_alloca`
 
@@ -24,20 +23,20 @@ void *_alloca(
 
 ### Parameters
 
-*`size`*<br/>
+*`size`*\
 Bytes to be allocated from the stack.
 
 ## Return Value
 
 The **`_alloca`** routine returns a **`void`** pointer to the allocated space, which is guaranteed to be suitably aligned for storage of any type of object. If *`size`* is 0, **`_alloca`** allocates a zero-length item and returns a valid pointer to that item.
 
-A stack overflow exception is generated if the space cannot be allocated. The stack overflow exception is not a C++ exception; it is a structured exception. Instead of using C++ exception handling, you must use [Structured Exception Handling](../../cpp/structured-exception-handling-c-cpp.md) (SEH).
+A stack overflow exception is generated if the space can't be allocated. The stack overflow exception isn't a C++ exception; it's a structured exception. Instead of using C++ exception handling, you must use [Structured Exception Handling](../../cpp/structured-exception-handling-c-cpp.md) (SEH).
 
 ## Remarks
 
 **`_alloca`** allocates *`size`* bytes from the program stack. The allocated space is automatically freed when the calling function exits (not when the allocation merely passes out of scope). Therefore, do not pass the pointer value returned by **`_alloca`** as an argument to [`free`](free.md).
 
-There are restrictions to explicitly calling **`_alloca`** in an exception handler (EH). EH routines that run on x86-class processors operate in their own memory frame: They perform their tasks in memory space that is not based on the current location of the stack pointer of the enclosing function. The most common implementations include Windows NT structured exception handling (SEH) and C++ catch clause expressions. Therefore, explicitly calling **`_alloca`** in any of the following scenarios results in program failure during the return to the calling EH routine:
+There are restrictions to explicitly calling **`_alloca`** in an exception handler (EH). EH routines that run on x86-class processors operate in their own memory frame: They perform their tasks in memory space that isn't based on the current location of the stack pointer of the enclosing function. The most common implementations include Windows NT structured exception handling (SEH) and C++ catch clause expressions. Therefore, explicitly calling **`_alloca`** in any of the following scenarios results in program failure during the return to the calling EH routine:
 
 - Windows NT SEH exception filter expression: `__except ( _alloca() )`
 
@@ -50,7 +49,7 @@ However, **`_alloca`** can be called directly from within an EH routine or from
 > [!IMPORTANT]
 > In Windows XP, if **`_alloca`** is called inside a try/catch block, you must call [`_resetstkoflw`](resetstkoflw.md) in the catch block.
 
-In addition to the above restrictions, when using the[`/clr` (Common Language Runtime Compilation)](../../build/reference/clr-common-language-runtime-compilation.md) option, **`_alloca`** cannot be used in **`__except`** blocks. For more information, see [`/clr` Restrictions](../../build/reference/clr-restrictions.md).
+In addition to the above restrictions, when using the[`/clr` (Common Language Runtime Compilation)](../../build/reference/clr-common-language-runtime-compilation.md) option, **`_alloca`** can't be used in **`__except`** blocks. For more information, see [`/clr` Restrictions](../../build/reference/clr-restrictions.md).
 
 ## Requirements
 
@@ -103,7 +102,7 @@ int main()
 
         // If the stack overflows, use this function to restore.
         errcode = _resetstkoflw();
-        if (errcode)
+        if (errcode == 0) //  _resetstkoflw() returns 0 on failure
         {
             printf_s("Could not reset the stack!\n");
             _exit(1);
@@ -118,9 +117,9 @@ Allocated 1000 bytes of stack at 0x0012FB50
 
 ## See also
 
-[Memory Allocation](../../c-runtime-library/memory-allocation.md)<br/>
-[`calloc`](calloc.md)<br/>
-[`malloc`](malloc.md)<br/>
-[`realloc`](realloc.md)<br/>
-[`_resetstkoflw`](resetstkoflw.md)<br/>
-[`_malloca`](malloca.md)<br/>
+[Memory Allocation](../../c-runtime-library/memory-allocation.md)\
+[`calloc`](calloc.md)\
+[`malloc`](malloc.md)\
+[`realloc`](realloc.md)\
+[`_resetstkoflw`](resetstkoflw.md)\
+[`_malloca`](malloca.md)