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How to check if a String contains only ASCII?

...ue if the character is a letter. But is there a way to quickly find if a String only contains the base characters of ASCII? ...
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Extracting substrings in Go

... from the console (including whitespace), then process it. Using bufio.ReadString, the newline character is read together with the input, so I came up with the following code to trim the newline character: ...
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How to count the number of set bits in a 32-bit integer?

...bit elements in a 64-bit integer with a 0x0101010101010101 multiplier, and extract the high byte with >>56. So it doesn't take any extra steps, just wider constants. This is what GCC uses for __builtin_popcountll on x86 systems when the hardware popcnt instruction isn't enabled. If you can ...
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How to post pictures to instagram using API

...ount that you wish to post a photo too // Set all of the parameters in the string, and then sign it with their API key using SHA-256 $data ='{"device_id":"'.$device_id.'","guid":"'.$guid.'","username":"'.$username.'","password":"'.$password.'","Content-Type":"application/x-www-form-urlencoded; chars...
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nginx server_name wildcard or catch-all

...ich serves several websites. The first is a status message on the server's IP address. The second is an admin console on admin.domain.com . These work great. Now I'd like all other domain requests to go to a single index.php - I have loads of domains and subdomains and it's impractical to list th...
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How can I split and trim a string into parts all on one line?

... Try List<string> parts = line.Split(';').Select(p => p.Trim()).ToList(); FYI, the Foreach method takes an Action (takes T and returns void) for parameter, and your lambda return a string as string.Trim return a string Foreach...
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Concatenate two string literals

...Koenig. He writes that "the new idea is that we can use + to concatenate a string and a string literal - or, for that matter, two strings (but not two string literals). ...
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How to compare Unicode characters that “look alike”?

...e: using System; using System.Text; class Program { static void Main(string[] args) { char first = 'μ'; char second = 'µ'; // Technically you only need to normalize U+00B5 to obtain U+03BC, but // if you're unsure which character is which, you can safely ...
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What's the best way to trim std::string?

I'm currently using the following code to right-trim all the std::strings in my programs: 46 Answers ...
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C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术

...0 11 12 13 14 15 16 #include <stdlib.h> #include <string.h> struct line { int length; char contents[0]; // C99的玩法是:char contents[]; 没有指定数组长度 }; int main(){ int this_length=10; struct line *thisline = (struct line ...