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I write a parser for some data structure, after hours of debugging I found out that the problem is Visual Studio doesn't interpret the structures as I tell it. It seems some "padding" is used
struct foo { unsigned char a; //0x00 unsigned char b; //0x01 unsigned int c; //0x02 unsigned int d; //0x06 unsigned int e; //0x0A unsigned int f; //0x0E //0x12 }; I expected "sizeof(foo)=4*4+2=18" but I get "sizeof(foo)=20". Is there any possibility to turn padding off just for this special struct? I tried
__declspec(align(1)) struct foo { ... but it does not work. Thank you for your help.
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In Structure, sometimes the size of the structure is more than the size of all structures members because of structure padding. Note: But what actual size of all structure member is 13 Bytes. So here total 3 bytes are wasted. So, to avoid structure padding we can use pragma pack as well as an attribute.
Over time, walking on carpet can impact the texture, wearing down your flooring and reducing its life span. Carpet padding protects your floors and carpet fibers by acting as a cushion against foot traffic.
Below is an example of Structure padding: Note: But what actual size of all structure member is 13 Bytes. So here total 3 bytes are wasted. So, to avoid structure padding we can use pragma pack as well as an attribute.
The CSS padding properties are used to generate space around an element's content, inside of any defined borders. With CSS, you have full control over the padding. There are properties for setting the padding for each side of an element (top, right, bottom, and left). Note: Negative values are not allowed.
The router command that is used in order to disable the Hello padding is no hello padding [multi-point|point-to-point]. The interface command that is used in order to disable the Hello padding is no isis hello padding.
The interface command that is used in order to disable the Hello padding is no isis hello padding. If the padding is disabled at the start, the router still sends Hello packets at full MTU. In order to avoid this, disable the padding with the interface command and use the always keyword. In this case, all of the IS-IS Hello packets are not padded.
Use the #pragma pack directive for that:
#pragma pack(push, 1) struct foo { // etc.. }; #pragma pack(pop) If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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