大约有 13,350 项符合查询结果（耗时：0.0295秒） [XML]
Should operator
...lic:
explicit Paragraph(std::string const& init)
:m_para(init)
{}
std::string const& to_str() const
{
return m_para;
}
bool operator==(Paragraph const& rhs) const
{
return m_para == rhs.m_para;...
When is a C++ destructor called?
...rwise, means it uses ::operator new). Then, when you use (for example) push_back to add an item to the vector, internally the vector uses a placement new to create an item in the (previously) unused part of its memory space.
Now, what happens when/if you erase an item from the vector? It can't just ...
Read a text file using Node.js?
...var path = require('path');
var readStream = fs.createReadStream(path.join(__dirname, '../rooms') + '/rooms.txt', 'utf8');
let data = ''
readStream.on('data', function(chunk) {
data += chunk;
}).on('end', function() {
console.log(data);
});
...
byte[] to hex string [duplicate]
...bove 2 but requires an array of 256 strings to always exist
With: LONG_STRING_LENGTH = 1000 * 1024;
BitConvertRep calculation Time Elapsed 27,202 ms (fastest built in/simple)
StringBuilder calculation Time Elapsed 75,723 ms (StringBuilder no reallocate)
LinqConcat calculation Time E...
Python naming conventions for modules
...and so I'd always have to name my instances something unnatural like client_instance. What do you think of this problem?
– Ray
Jun 1 '16 at 10:59
3
...
Returning a C string from a function
... you move over to C++ you'll use similar strategies:
class Foo
{
char _someData[12];
public:
const char* someFunction() const
{ // The final 'const' is to let the compiler know that nothing is changed in the class when this function is called.
return _someData;
}
}
... but...
Detect if the app was launched/opened from a push notification
...pplication wake up most recently?
func applicationWillEnterForeground(_ application: UIApplication) {
// time stamp the entering of foreground so we can tell how we got here
wakeTime = Date()
}
func application(_ application: UIApplication, didReceiveRemoteNotification userIn...
SVN: Is there a way to mark a file as “do not commit”?
...nore-on-commit is already defined. tortoisesvn.net/docs/release/TortoiseSVN_en/…
– tjmoore
Jun 19 '12 at 8:50
...
Why is creating a Thread said to be expensive?
...of OpenJDK 6 on Linux, the thread stack is allocated by the call to pthread_create that creates the native thread. (The JVM does not pass pthread_create a preallocated stack.)
Then, within pthread_create the stack is allocated by a call to mmap as follows:
mmap(0, attr.__stacksize,
PROT_REA...
Cannot use ref or out parameter in lambda expressions
... if (tokenDefinition.LeftDenotation != null)
token._led = tokenDefinition.LeftDenotation(token);
if (tokenDefinition.NullDenotation != null)
token._nud = tokenDefinition.NullDenotation(token);
token.Identifier = tokenDefinition.Identifi...