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v-dirichards merged 1 commit into from
Feb 20, 2025
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Add example for fatal error C1012 #5193

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16 changes: 12 additions & 4 deletions docs/error-messages/compiler-errors-1/fatal-error-c1012.md
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---
description: "Learn more about: Fatal Error C1012"
title: "Fatal Error C1012"
ms.date: "11/04/2016"
description: "Learn more about: Fatal Error C1012"
ms.date: "02/20/2025"
f1_keywords: ["C1012"]
helpviewer_keywords: ["C1012"]
ms.assetid: 92cc83a7-b5b8-4da8-a128-9b7ccb510496
---
# Fatal Error C1012

unmatched parenthesis : missing character
unmatched parenthesis: missing 'character'

The parentheses in a preprocessor directive do not match.

The following sample generates C1012:

```cpp
// C1012.cpp
// compile with: /c
#if (0 // C1012
#endif
```