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Add example for C2290 error reference #5701

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5707f06
Update error message in C2290 error reference
Rageking8 Aug 23, 2025
e2d64ea
Augment remarks in C2290 error reference
Rageking8 Aug 23, 2025
5ad86f6
Add example in C2290 error reference
Rageking8 Aug 23, 2025
b3e3f96
Update `ms.date` metadata in C2290 error reference
Rageking8 Aug 23, 2025
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21 changes: 18 additions & 3 deletions docs/error-messages/compiler-errors-1/compiler-error-c2290.md
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---
title: "Compiler Error C2290"
description: "Learn more about: Compiler Error C2290"
ms.date: 11/04/2016
ms.date: 08/23/2025
f1_keywords: ["C2290"]
helpviewer_keywords: ["C2290"]
---
# Compiler Error C2290

> C++ asm syntax ignored. Use __asm.
> C++ 'asm' syntax ignored. Use __asm.
## Remarks

The **`asm`** syntax is reserved for future use.
The **`asm`** syntax is reserved for future use, try [`__asm`](../../assembler/inline/asm.md) instead. For more information, see [Inline Assembler](../../assembler/inline/inline-assembler.md).
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[nitpick] Consider adding a space after the comma for better readability: 'reserved for future use. Try [__asm]...' instead of 'reserved for future use, try [__asm]...'

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## Example

The following example generates C2290:

```cpp
// C2290.cpp
// processor: x86

int main()
{
asm("nop"); // C2290
__asm nop // OK
}
```