| description | title | ms.date | f1_keywords | helpviewer_keywords | ms.assetid | ||
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Learn more about: Compiler Warning (level 4) C4820 |
Compiler Warning (level 4) C4820 |
11/04/2016 |
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17aa29f4-c287-49b8-bc43-8ed82ffed5ea |
'bytes' bytes padding added after construct 'member_name'
The type and order of elements caused the compiler to add padding to the end of a struct. See align for more information on padding in a struct.
This warning is off by default. See Compiler Warnings That Are Off by Default for more information.
The following sample generates C4820:
// C4820.cpp
// compile with: /W4 /c
#pragma warning(default : 4820)
// Delete the following 4 lines to resolve.
__declspec(align(2)) struct MyStruct {
char a;
int i; // C4820
};
// OK
#pragma pack(1)
__declspec(align(1)) struct MyStruct2 {
char a;
int i;
};