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What is move semantics?
...:
#include <cstring>
#include <algorithm>
class string
{
char* data;
public:
string(const char* p)
{
size_t size = std::strlen(p) + 1;
data = new char[size];
std::memcpy(data, p, size);
}
Since we chose to manage the memory ourselves, we need...
Pointers in C: when to use the ampersand and the asterisk?
...'t use the & operator for arguments corresponding to "%s" in scanf():
char str[STRING_LENGTH];
...
scanf("%s", str);
Because of the implicit conversion, scanf() receives a char * value that points to the beginning of the str array. This holds true for any function called with an array expres...
How do I POST urlencoded form data with $http without jQuery?
... Object.keys(obj).reduce(function(p, c) { return p.concat([encodeURIComponent(c) + "=" + encodeURIComponent(obj[c])]); }, []).join('&');
– test30
Sep 14 '16 at 22:09
...
Haml: Control whitespace around text
...e's the solution I'm settling on:
Helper
def one_line(&block)
haml_concat capture_haml(&block).gsub("\n", '').gsub('\\n', "\n")
end
View
I will first
- one_line do
= link_to 'link somewhere', 'http://example.com'
- if @condition
, then render this half of the sentence
\\n
...
What is the best way to remove accents (normalize) in a Python unicode string?
...ccents(u"A \u00c0 \u0394 \u038E")
u'A A \u0394 \u03a5'
>>>
The character category "Mn" stands for Nonspacing_Mark, which is similar to unicodedata.combining in MiniQuark's answer (I didn't think of unicodedata.combining, but it is probably the better solution, because it's more explicit)...
What is std::string::c_str() lifetime?
...programs, I have to interface with some legacy code that works with const char* .
7 Answers
...
What's the @ in front of a string in C#?
...omplicated. For example, to write the following code in VB you need to use concatenation (or any of the other ways to construct a string)
string x = "Foo\nbar";
In VB this would be written as follows:
Dim x = "Foo" & Environment.NewLine & "bar"
(& is the VB string concatenation ope...
Concept of void pointer in C programming
...l incorrectly, you can safely dereference a void* in two ways. Casting to char* is always acceptable, and if you know the original type it points to you can cast to that type. The void* has lost the type info so it'd have to be stored elsewhere.
– Dan Olson
M...
How to remove last n characters from every element in the R vector
..., and I could not find a simple example online of how to remove the last n characters from every element of a vector (array?)
...
MySQL一次主从数据不一致的问题解决过程 - 数据库(内核) - 清泛网 - 专注C/...
...
CREATE TABLE IF NOT EXISTS `radius`.`checksums` ( db CHAR(64) NOT NULL, tbl CHAR(64) NOT NULL, chunk INT NOT NULL, chunk_time FLOAT NULL, chunk_index VARCHAR(200) NULL, lower_boundary TEXT ...