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Is there a printf converter to print in binary format?

...he %d to %c, because it should be even faster (%d has to perform digit->char conversion, while %c simply outputs the argument – user719662 May 27 '16 at 15:20 3 ...
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Decimal separator comma (',') with numberDecimal inputType in EditText

... Even better, use char localizedSeparator = DecimalFormatSymbols.getInstance().getDecimalSeparator(); localizedFloatString = localizedFloatString.replace('.', localizedSeparator); – southerton ...
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How do I create a random alpha-numeric string in C++?

I'd like to create a random string, consisting of alpha-numeric characters. I want to be able to be specify the length of the string. ...
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Read whole ASCII file into C++ std::string [duplicate]

... std::ifstream t("file.txt"); std::string str((std::istreambuf_iterator<char>(t)), std::istreambuf_iterator<char>()); Not sure where you're getting the t.open("file.txt", "r") syntax from. As far as I know that's not a method that std::ifstream has. It looks like you'v...
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How to easily map c++ enums to strings

...mes themselves as strings, see this post. Otherwise, a std::map<MyEnum, char const*> will work nicely. (No point in copying your string literals to std::strings in the map) For extra syntactic sugar, here's how to write a map_init class. The goal is to allow std::map<MyEnum, const char*&g...
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Check if table exists and if it doesn't exist, create it in SQL Server 2008

... Something like this IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[YourTable]') AND type in (N'U')) BEGIN CREATE TABLE [dbo].[YourTable]( .... .... .... ) END ...
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How to change string into QString?

...QString::fromStdString(str); If by string you mean Ascii encoded const char * then you can use this method: QString QString::fromAscii(const char * str, int size = -1) const char* str = "Hello world"; QString qstr = QString::fromAscii(str); If you have const char * encoded with system enco...
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C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区,为创新赋能!

...#include <stdio.h> struct str{     int len;     char s[0]; }; struct foo {     struct str *a; }; int main(int argc, char** argv) {     struct foo f={0};     if (f.a->s) {         printf( f.a->s);   &...
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Best way to specify whitespace in a String.Split operation

...yStr.Split(null); //Or myStr.Split() or: string[] ssize = myStr.Split(new char[0]); then white-space is assumed to be the splitting character. From the string.Split(char[]) method's documentation page. If the separator parameter is null or contains no characters, white-space characters are assume...
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Concept behind these four lines of tricky C code

... { m[0] *= 2; main(); } else { printf((char*) m); } } It recursively calls main() 771 times. In the beginning, m[0] = 7709179928849219.0, which stands for C++Suc;C. In every call, m[0] gets doubled, to "repair" last two letters. In the last call, m[0] cont...