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How do I print a double value with full precision using cout?
... calculates the right precision for me. And it's fast, too.
#include <string>
#include <boost/lexical_cast.hpp>
using boost::lexical_cast;
using std::string;
double d = 3.14159265358979;
cout << "Pi: " << lexical_cast<string>(d) << endl;
Output:
Pi: 3.14...
What is The difference between ListBox and ListView
... The Code Behind section is not valid code as of 2019-04-29 (extra closing brace and UpgradeProperty). Can it be corrected?
– Frederic
Apr 29 '19 at 9:36
2
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How to get a variable name as a string in PHP?
...and using a variable variable name?
$var_name = "FooBar";
$$var_name = "a string";
then you could just
print($var_name);
to get
FooBar
Here's the link to the PHP manual on Variable variables
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Can virtual functions have default parameters?
...ctly the same in almost every way except default visibility.
#include <string>
#include <sstream>
#include <iostream>
#include <iomanip>
using std::stringstream;
using std::string;
using std::cout;
using std::endl;
struct Base { virtual string Speak(int n = 42); };
struct ...
Why are local variables not initialized in Java?
... chain to the previous exception? I don't remember. Even so, you'd have an extra exception in the way of the real one.)
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django unit tests without a db
...ass MyDiscoverRunner(DiscoverRunner):
def run_tests(self, test_labels, extra_tests=None, **kwargs):
"""
Run the unit tests for all the test labels in the provided list.
Test labels should be dotted Python paths to test modules, test
classes, or test methods.
...
Retrieving parameters from a URL
...n you a list object. You need to get the first element of it if you want a string urlparse.parse_qs(parsed.query)['def'][0]
– raffaem
Jul 9 '17 at 10:11
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What's Up with Logging in Java? [closed]
...event is serialized using the unchanged message pattern + the arguments as Strings. I guess it just depends how you define "effectively" though. It would certainly emit the same message (at least if entry and object are the same ;)) so please forgive my nitpicking.
– Huxi
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How can I access a JavaScript object which has spaces in the object's key?
...metimes called associative arrays since each property is associated with a string value that can be used to access it. So, for example, you could access the properties of the myCar object as follows:
myCar['make'] = 'Ford';
myCar['model'] = 'Mustang';
myCar['year'] = 1969;
For more, read on at Wo...
Database design for audit logging
...would house the primary key you'd reference for your foreign key relationships. The Opportunities_Content table would hold all the fields your users can change and for which you'd like to keep an audit trail. Each record in the Content table would include its own PK and the modified-by and modifie...