padding

I was going through the concept of structure member alignment and structure padding concept when I found that the size of this struct ... struct node{ int b; char a; }; ... is 8 bytes (i.e. it contains 3 bytes of padding) whereas the size of this struct ... struct node{ char a; }; ... is only 1 byte. Why is there no padding in the latter? haccks Remember theses two rules for padding: Padding is only inserted when a structure member is followed by a member with a larger alignment requirement or at the end of the structure. The last member is padded with the number of bytes required so that the

I've been learning about structure data padding since I found out my sizeof() operator wasn't returning what I expected. According to the pattern that I've observed, it aligns structure members with the largest data type. So for example... struct MyStruct1 { char a; // 1 byte char b; // 1 byte char c; // 1 byte char d; // 1 byte char e; // 1 byte // Total 5 Bytes //Total size of struct = 5 (no padding) }; struct MyStruct2 { char a; // 1 byte char b; // 1 byte char c; // 1 byte char d; // 1 byte char e; // 1 byte short f; // 2 bytes // Total 7 Bytes //Total size of struct = 8 (1 byte of padding

I am wrestling with my listbox and values in the listbox for some time now and I stumbled across another problem. I am fetching data from my Access database (both the field names and the values) and displaying them in a listbox. I am trying to outline the values of the field names to the right of the field name on a equal distance (so they are all below each other). I am trying to use the PadLeft function for this but for some reason this doesn't outline them below each other. I think this has something to do with the Length of the field names. The result what i am getting with this line of

I am trying to convert a integer to string (using integer'image(val) ) and either pad or limit it to a specific length. I have made this function which does the job just fine when I use a report statement and simulate. function integer2string_pad(val: integer; stringSize: integer) return string is variable imageString: string(1 to integer'image(val)'length); variable returnString: string(1 to stringSize); begin imageString := integer'image(val); -- Are we smaller than the desired size? if integer'image(val)'length < stringSize then -- Pad the string if we are returnString := integer'image(val)

hello all hope someone can help with that. I was browsing the net and nothing really seems to make sense :S so I have a string lets say: "123" and I would like to use a function like: padr("123", 5, 'x') and the result should be: "123xx" Sorry but Objective-C is a nightmare when dealing with strings :S You could create your own method to take the initial string, desired length, and padding character (as I was starting to do & also described in a few similar questions) Or you could use the NSString method Apple already provides ;) NSString *paddedString = [@"123" stringByPaddingToLength: 5

I can't seem to find out how to do this, so it may not be that simple after all. I looked this post , this one , and many others, but I can't get the type of answer I'm looking for. Most of the posts I read use the struct.pack or struct.pack_into , but the problem is that I don't really know a priory the size of the array I need, and I wouldn't like to create one to store temporarily the integer values. So I thought that I could use the bytearray instead, but I don't know how to add 4-byte integers to it. >>> b = bytearray() >>> for i in range(100): ... b.append(i) ... >>> print(b) bytearray(b

That is a little bit hard to explain, if someone knows a better title for this, please go ahead and change it. I want to draw a black box behind my headline. I'm doing this with a span inside the h-tag. It needs a little bit padding to the left and to the right. My layout is responsive, so it is likely that the heading breaks into two lines. <div class="headline-black"> <h1 class="entry-title"> <span>Some very, very long headline, that is very, very long.</span> </h1> </div> h1 span { background: none repeat scroll 0 0 #000000; line-height:44px; padding:7px 25px 8px 25px; } .headline-black h1

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I have read one article about difference between the methods update() and dofinal() in cipher. It was about what will happend if we want to encrypt 4 Bytes Array, when the block size of the cipher is for example 8 Bytes. If we call update here it will return null. My question is: what will happen if we call doFinal() with a 4 byte array to encrypt, and the buffer size is 8 bytes, how many bytes encoded data will we receive on the return? update() : feed the data, again and again, enables you to encrypt long files, streams. dofinal() : apply the requested padding scheme to the data, if