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Format output string, right alignment
... @Mark One way the old way is cleaner is that it uses fewer characters. Yes with familiarity the new way becomes intuitive but it is not cleaner and simpler. The old way is more intuitive for those who are accustomed to the syntax that comes to us through the venerable C language, a l...
Remove leading and trailing spaces?
...e noted that strip() method would trim any leading and trailing whitespace characters from the string (if there is no passed-in argument). If you want to trim space character(s), while keeping the others (like newline), this answer might be helpful:
sample = ' some string\n'
sample_modified = samp...
Why can Java Collections not directly store Primitives types?
...s. How would you write a collection that can store either int, or float or char? Most likely you will end up with multiple collections, so you will need an intlist and a charlist etc.
Taking advantage of the object oriented nature of Java when you write a collection class it can store any object so...
How do shift operators work in Java? [duplicate]
...ts so that the value can be used as an index into the array of hexadecimal characters.
// Masking sign extension.
class HexByte {
static public void main(String args[]) {
char hex[] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
};
byte b ...
What is stack unwinding?
...tion with exception handling. Here's an example:
void func( int x )
{
char* pleak = new char[1024]; // might be lost => memory leak
std::string s( "hello world" ); // will be properly destructed
if ( x ) throw std::runtime_error( "boom" );
delete [] pleak; // will only get here...
Best way to encode text data for XML in Java?
...l(str) from commons-lang. I use it in App Engine application - work like a charm. Here is the Java Doc for this function:
– Oleg K
Feb 15 '11 at 19:04
...
Move capture in lambda
...t;type_traits>
#include <functional>
namespace detail
{
enum selection_enabler { enabled };
}
#define ENABLE_IF(...) std::enable_if_t<(__VA_ARGS__), ::detail::selection_enabler> \
= ::detail::enabled
// This allows forwarding an object using the copy c...
Multiline strings in JSON
...for escaping the backslash, otherwise python will treat \n as
the control character "new line"
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Copy a file in a sane, safe and efficient way
...ing with the file system:
#include <copyfile.h>
int
copyfile(const char *from, const char *to, copyfile_state_t state, copyfile_flags_t flags);
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What are carriage return, linefeed, and form feed?
What is the meaning of the following control characters:
12 Answers
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