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subtract two times in python
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edited Mar 10 '11 at 16:12
bstpierre
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std::shared_ptr thread safety explained
...e only newly created object?
is incorrect. Only d will point to the new A(10), and a, b, and c will continue to point to the original A(1). This can be seen clearly in the following short example.
#include <memory>
#include <iostream>
using namespace std;
struct A
{
int a;
A(int a)...
Do I need a content-type header for HTTP GET requests?
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115
According to the RFC 7231 section 3.1.5.5:
A sender that generates a message containing a ...
Python list iterator behavior and next(iterator)
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199
What you see is the interpreter echoing back the return value of next() in addition to i being...
Cannot add or update a child row: a foreign key constraint fails
table 1
24 Answers
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How to grant remote access to MySQL for a whole subnet?
...n as a wildcard in the IP address.
From http://dev.mysql.com/doc/refman/5.1/en/grant.html
You can specify wildcards in the host name. For example, user_name@'%.example.com' applies to user_name for any host in the example.com domain, and user_name@'192.168.1.%' applies to user_name for any host...
What is the maximum length of latitude and longitude? [closed]
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If latitude coordinate is reported as -6.3572375290155 or -63.572375290155 in decimal degrees then you could round-off and store up to 6 decimal places for 10 cm (or 0.1 meter) precision.
Overview
The valid range of latitude in degrees is -90 and +90 for the southern and nort...