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Feb 18, 2025
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Add example and augment C2200 page #5189

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18 changes: 13 additions & 5 deletions docs/error-messages/compiler-errors-1/compiler-error-c2200.md
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---
description: "Learn more about: Compiler Error C2200"
title: "Compiler Error C2200"
ms.date: "11/04/2016"
description: "Learn more about: Compiler Error C2200"
ms.date: "02/15/2025"
f1_keywords: ["C2200"]
helpviewer_keywords: ["C2200"]
ms.assetid: a04139a6-ce18-404b-9bfd-2369fc0af3cb
---
# Compiler Error C2200

'function' : function has already been defined
'function': function has already been defined

An [`alloc_text`](../../preprocessor/alloc-text.md) pragma uses a function name already defined. Ensure the `alloc_text` pragma appears after the function declaration but before its definition.

The following sample generates C2200:

An `alloc_text` pragma uses a function name already defined.
```cpp
// C2200.cpp
// compile with: /c
extern "C" void func() {}
#pragma alloc_text("section", func) // C2200
```