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How do I declare a 2d array in C++ using new?
...gt;
#include <utility>
#include <type_traits>
#include <typeinfo>
#include <cxxabi.h>
using namespace std;
int main()
{
const auto M = 2;
const auto N = 2;
// allocate (no initializatoin)
auto array = new double[M][N];
// pollute the memory
array[0]...
difference between throw and throw new Exception()
... original exception but resets the stack trace, destroying all stack trace information until your catch block.
NEVER write throw ex;
throw new Exception(ex.Message); is even worse. It creates a brand new Exception instance, losing the original stack trace of the exception, as well as its type. (...
Laravel Schema onDelete set null
...
This is a known issue in Laravel. More info about this here.
This feature is not supported in SQLite, see here
Also a topic that has a detailed showdown of this problem
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How do I download a file over HTTP using Python?
...split('/')[-1]
u = urllib2.urlopen(url)
f = open(file_name, 'wb')
meta = u.info()
file_size = int(meta.getheaders("Content-Length")[0])
print "Downloading: %s Bytes: %s" % (file_name, file_size)
file_size_dl = 0
block_sz = 8192
while True:
buffer = u.read(block_sz)
if not buffer:
br...
GSON - Date format
... it represents UTC timezone, if you hardcode it like this you'll lost that info
– Billda
Apr 4 '16 at 11:41
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How can I install pip on Windows?
...When run the command "python setup.py install", if you got "error: pip.egg-info\PKG-INFO: Permission denied", then try to remove the read only attribute on the uncompressed pip directory.
– Yoo Matsuo
May 5 '11 at 4:04
...
C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
...read.h>
#define NAME_LEN 50
#define MAX_CLIENT 30
typedef struct client_info{
int sock;
struct sockaddr_in clientAddr;
char name[NAME_LEN];
}CLIENT_INFO;
class Clients{
private:
pthread_mutex_t mutex;
CLIENT_INFO client[MAX_CLIENT];
int clientCount;
int IPtoString(unsig...
Why am I getting error for apple-touch-icon-precomposed.png
...pecify an icon to represent your web application or webpage
on iOS.
more info: https://developer.apple.com/library/content/documentation/AppleApplications/Reference/SafariWebContent/ConfiguringWebApplications/ConfiguringWebApplications.html
how to solve?:
Add a icon to solve problem.
...
IntelliJ beginning of file keyboard shortcut
...tion+down will provide page up and page down behaviour. Superuser has more information.
Also, if you open the Keyboard preferences pane and look at the Input Sources tab, you will find that the displayed keyboard changes as you press modifier keys such shift, option and function. Your keyboard prob...
How to search in array of object in mongodb
...ith National Medal in 1975.
See MongoDB $elemMatch Documentation for more info. See Read Operations Documentation for more information about querying documents with arrays.
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