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std::string to float or double
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std::string num = "0.6";
double temp = ::atof(num.c_str());
Does it for me, it is a valid C++ syntax to convert a string to a double.
You can do it with the stringstream or boost::lexical_cast but those come with a performance penalty.
Ah...
Check if string contains only whitespace
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edited Jun 26 at 20:31
AMC
2,22866 gold badges1010 silver badges2828 bronze badges
answered Mar ...
How can I test https connections with Django as easily as I can non-https connections using 'runserv
...unication. For this we turn to openssl.
Create the key:
openssl genrsa 1024 > stunnel.key
Create the certificate that uses this key (this will ask you a bunch of information that will be included in the certficate - just answer with whatever feels good to you):
openssl req -new -x509 -nodes...
Install a module using pip for specific python version
On Ubuntu 10.04 by default Python 2.6 is installed, then I have installed Python 2.7. How can I use pip install to install packages for Python 2.7.
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Structs in Javascript
...);
var count = names.length;
function constructor() {
for (var i = 0; i < count; i++) {
this[names[i]] = arguments[i];
}
}
return constructor;
}
var Item = makeStruct("id speaker country");
var row = new Item(1, 'john', 'au');
alert(row.speaker); // displays: john
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How to get the difference between two arrays in JavaScript?
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230
I assume you are comparing a normal array. If not, you need to change the for loop to a for .. i...
Why are C character literals ints instead of chars?
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answered Jan 11 '09 at 23:21
MalxMalx
95211 gold badge88 silver badges1616 bronze badges
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Pass Array Parameter in SqlCommand
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170
You will need to add the values in the array one at a time.
var parameters = new string[items.L...
Under what circumstances is an SqlConnection automatically enlisted in an ambient TransactionScope T
...tedIdentifier.
*Update: I read somewhere that this is fixed in SQL Server 2008, so that MSDTC is not used when the same connection string is used for both connections (as long as both connections are not open at the same time). That allows you to open a connection and close it multiple times within...
How can building a heap be O(n) time complexity?
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490
I think there are several questions buried in this topic:
How do you implement buildHeap so it ...