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Extracting numbers from vectors of strings
...gexpr puts it between Andrew's and Arun's solutions (second fastest) on a 1e6 set. Perhaps also interesting, using sub in Andrew's solution does not improve the speed.
– Matthew Lundberg
Jan 27 '13 at 16:42
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How to correct TypeError: Unicode-objects must be encoded before hashing?
...dbits(256)).encode('utf-8')).hexdigest()
'cd183a211ed2434eac4f31b317c573c50e6c24e3a28b82ddcb0bf8bedf387a9f'
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std::enable_if to conditionally compile a member function
...ution in argument deduction of a template argument makes the construct ill-formed. There is no such substitution.
I thought of that too and tried to use std::is_same< T, int >::value and ! std::is_same< T, int >::value which gives the same result.
That's because when the class tem...
NodeJS: Saving a base64-encoded image to disk
...
this is my full solution which would read any base64 image format and save it in the proper format in the database:
// Save base64 image to disk
try
{
// Decoding base-64 image
// Source: http://stackoverflow.com/questions/20267939/nodejs-write-base64-ima...
How to echo with different colors in the Windows command line
...( e:Error ) {
if ( e.message == "Input string was not in a correct format." ) {
print( "the color parameters should be numbers between 0 and 15" );
Environment.Exit( 1 );
} else if (e.message == "Index was outside the bounds of the array.") {
print...
How can I take more control in ASP.NET?
...ful"
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="JonSkeetForm.aspx.cs" Inherits="JonSkeetForm" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
&...
Left Join With Where Clause
...ometimes, this works faster in MySQL, but compare it against the LEFT JOIN form to see what works best for you.
SELECT s.*, c.value
FROM settings s
LEFT JOIN character_settings c ON c.setting_id = s.id AND c.character_id = '1'
...
Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...D9F 81 C6 04 00 00 00 add esi, 0x4
08048DA5 E2 E6 loop 08048D8D ; (near 0xE6)
08048DA7 BE 8F A0 04 08 mov esi, " cracked ohh yeah !!" (0804A08F)
08048DAC E8 42 00 00 00 call Fun...
javascript check for not null
Below is a code snippet, where we retrieve a form value.
Before further processing check if the value is not null..
10 Answ...
C++ equivalent of StringBuffer/StringBuilder?
...eam or just plain string concatenations. C++ strings are mutable so the performance considerations of concatenation are less of a concern.
with regards to formatting, you can do all the same formatting on a stream, but in a different way, similar to cout. or you can use a strongly typed functor whi...