how many bytes in gig

http://maimode.iteye.com/blog/1341354 has been confused in the use of, and always did not understand the Chinese characters in Java occupies the number of bytes, each time is evaded the past. Today, a byte-encoding problem has made me have to rethink the problem of char and encoding. Here is a reference to the information in the discussion: Http://www.iteye.com/topic/47740 writes (because the original author confused byte and bit writes, I have m

there is a Unicode encoding, it is only a representation of the rules, does not correspond to the specific implementation of the form. uni-This prefix in English means the meaning of unity, it attempts to express the language of the world in a unified code, but Unicode only specifies the binary data for the character, but does not specify that the binary data is stored in memory with a few bytes, and then it is messed up. Countries in the realization

allocated according to total_size.. Text: 4ADE5B35 mov ecx, ebx. Text: 4ADE5B37 call sub_4ADE4F1F In the sub_4ADE4F1F function, SysAllocStringLen is called to allocate a block of the same size as [ebp + bstrString], that is, memory Buffer2 in total_size bytes. The result is stored at the position 0x18 in the struct with the size 0 . Text: 4ADE5BDC mov eax, [ebx]; save Buffer2 address in EAX. Text: 4ADE5BDE and word ptr [eax + esi * 2-2], 0; clears

A large amount of data plane question arrangement　　1. Given a, b two files, each store billions of URLs, each URL is 64 bytes, memory limit is 4G, let you find a, b file common URL?Scenario 1: You can estimate the size of each file is 50gx64=320g, which is much larger than the memory limit of 4G. So it is not possible to fully load it into memory for processing . Consider adopting a divide-and-conquer approach .s iterates through file A, takes each UR

I haven't had a blog for half a month. I am busy with my work. Thank you for your attention.There are two things to do today. The first is to announce the answer to the last "interesting mind-reading.The second is to paste two functions used in the work to calculate the number of bytes of the half-width/full-width string. (1) answer to "interesting mind reader:Original post address: Interesting readingAssuming that the number you selected is XY, the f

Don't be nervous, don't doubt, the landlord is not fooling around :) In fact, this is not the smallest! I hope you can continue to explore it. This article does not have any tricks and is the most basic technology. Even the rookie knows that it is impossible to save a 0.1 billion pixel photo to several hundred bytes, not to mention lossless. In fact, it is indeed impossible, because the title of this article does not refer to pictures, but images with

When calculating the length of a string, the first function that most people have flashed in their minds is Len (), the number of characters returned by the function (numbers of characters), with no trailing spaces, but with leading spaces.example, the Len function returns the number of characters, not the number of bytes of characters.Declare @str_v varchar(Ten)Declare @str_nv nvarchar(Ten)Set @str_v='AB'Set @str_nv=N'AB'Select Len(@str_v) asLen_v,Le

How does php convert received bytes to Unicode encoding? in C #, I convert the Unicode encoding of Chinese characters into byte streams and then POST them to the site. However, after receiving these characters, php always displays question marks, how can I transfer received bytes to Unicode encoding ??? How does php transfer received bytes to Unicode encoding? I

The answer is: yes. It is about 5-15 kb. I don't know what the default value is. I tested 16371 bytes. Win7 x64. You can use setsockopt to set the recvbuf or sndbuf size. However, we recommend that you set the number of bytes received each time to a certain range, such as 5 kb. Because even if it is set, it is still possible to accept a small number of bytes. T

Why is the member function pointer in C ++ 16 bytes?When we talk about pointers, we usually assume that they are something that can be expressed using the void * pointer. In x86_64, they are 8 bytes in size. For example, the following is an excerpt from an article on x86_64 in Wikipedia: Pushes and pops on the stack are always in 8-byte strides, and pointers are 8 bytes