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Converting an int to std::string
What is the shortest way, preferably inline-able, to convert an int to a string? Answers using stl and boost will be welcomed.
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What Regex would capture everything from ' mark to the end of a line?
...ed by any number of any chars [including zero chars] ending with an end of string/line token:
'.*$
And if you wanted to capture everything after the ' char but not include it in the output, you would use:
(?<=').*$
This basically says give me all characters that follow the ' char until the ...
Make a float only show two decimal places
...ored, it is a matter of how you are displaying it. When converting it to a string you must round to the desired precision, which in your case is two decimal places.
E.g.:
NSString* formattedNumber = [NSString stringWithFormat:@"%.02f", myFloat];
%.02f tells the formatter that you will be formatt...
Python: Get the first character of the first string in a list?
How would I get the first character from the first string in a list in Python?
4 Answers
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Oracle中translate与replace的使用 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...length(trim(a.t_no));
2.replace
语法：REPLACE(char, search_string,replacement_string)
用法：将char中的字符串search_string全部转换为字符串replacement_string。
举例：SQL> select REPLACE('fgsgswsgs', 'fk' ,'j') 返回值 from dual;
返...
boost库编译问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
boost库编译问题boost::property_tree::xml_writer_settings<std::string> settings(' t', 1, "GB2312");报错：char不能转换为std::string。1.5...boost::property_tree::xml_writer_settings<std::string> settings('\t', 1, "GB2312");
报错：char不能转换为std::string。
1.54 版本 报...
How to escape the % (percent) sign in C's printf?
...en compiled. printf is a run-time function, so it deals with bytes of your string, not with C source code, and it has its own escape sequences that are parts of the function. In short, printf is a "language inside a language", and printf("This is a's value: %s\n", a); gives the same result as printf...
How to display a dynamically allocated array in the Visual Studio debugger?
... in MSDN.
In short, you can display a character array as several types of string. If you've got an array declared as:
char *a = new char[10];
You could print it as a unicode string in the watch window with the following:
a,su
See the tables on the MSDN page for all of the different conversion...
How do I find out if first character of a string is a number?
In Java is there a way to find out if first character of a string is a number?
5 Answers
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How do I concatenate multiple C++ strings on one line?
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#include <sstream>
#include <string>
std::stringstream ss;
ss << "Hello, world, " << myInt << niceToSeeYouString;
std::string s = ss.str();
Take a look at this Guru Of The Week article from Herb Sutter: The String Formatters of Ma...