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How to hash a string into 8 digits?
...;> import hashlib
>>> int(hashlib.sha1(s).hexdigest(), 16) % (10 ** 8)
58097614L
>>> # Use hash()
>>> abs(hash(s)) % (10 ** 8)
82148974
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What is causing this ActiveRecord::ReadOnlyRecord error?
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Rails 2.3.3 and lower
From the ActiveRecord CHANGELOG(v1.12.0, October 16th, 2005):
Introduce read-only records. If you call object.readonly! then it will
mark the object as read-only and raise
ReadOnlyRecord if you call
object.save. object.readonly? reports
whether the ...
Java SafeVarargs annotation, does a standard or best practice exist?
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edited Dec 11 '18 at 13:30
Blake
58344 silver badges1717 bronze badges
answered Jan 10 '13 at 6:43
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What is global::?
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105
global refers to the global namespace, it can be used to solve problems whereby you may redefin...
Limiting floats to two decimal points
...y a power of two so 13.95 will be represented in a similar fashion to 125650429603636838/(2**53).
Double precision numbers have 53 bits (16 digits) of precision and regular floats have 24 bits (8 digits) of precision. The floating point type in Python uses double precision to store the values.
For...
How to implement my very own URI scheme on Android
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Duncan Hoggan
4,40933 gold badges1919 silver badges2828 bronze badges
answered Mar 15 '10 at 16:00
Dan LewDan Lew
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C++ Dynamic Shared Library on Linux
...bject( MyClass* object )
{
delete object;
}
MyClass::MyClass()
{
x = 20;
}
void MyClass::DoSomething()
{
cout<<x<<endl;
}
class_user.cc
#include <dlfcn.h>
#include <iostream>
#include "myclass.h"
using namespace std;
int main(int argc, char **argv)
{
/* on Linu...
Asynctask vs Thread in android
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edited Mar 25 '19 at 20:48
ividito
33033 silver badges1313 bronze badges
answered Aug 28 '13 at 5:51...
Spring 3.0 - Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springfra
...ctId>spring-security-config</artifactId>
<version>3.0.1.RELEASE</version>
</dependency>
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How to re-raise an exception in nested try/except blocks?
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edited Jul 20 at 13:45
answered Aug 12 '13 at 13:47
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