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What does “atomic” mean in programming?
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Does reading an entire file leave the file handle open?
...s the actual read_text implementation:
def read_text(self, encoding=None, errors=None):
"""
Open the file in text mode, read it, and close the file.
"""
with self.open(mode='r', encoding=encoding, errors=errors) as f:
return f.read()
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jQuery event handlers always execute in order they were bound - any way around this? [duplicate]
It can be anoying that jQuery event handlers always execute in the order they were bound. For example:
10 Answers
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Can you get DB username, pw, database name in Rails?
I'm writing a rake task that does some DB work outside of Rails/ActiveRecord.
5 Answers
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Directory-tree listing in Python
...e != '.git'
– smci
May 22 '18 at 14:05
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show 2 more comments
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高并发服务端分布式系统设计概要 - C/C++ - 清泛网 - 专注C/C++及内核技术
...图中的Client部分。显然这个模块就是面向Web的接口，后面连接我们的“山推”系统，它可以包含诸多业务逻辑，最重要的，是要缓存group的信息。在Client和Web之间，还可以有诸如Nginx之类的反向代理服务器存在，做进一步性能提...
PHP convert date format dd/mm/yyyy => yyyy-mm-dd [duplicate]
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This looks okay but isn't. 05/04/2045 will assume American and give the 4th of May instead of the 4th of April. It's an intermittant and dangerous mistake - as per hjpotter. This answer should be marked as wrong.
– Tim Ogilvy
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Check if something is (not) in a list in Python
I have a list of tuples in Python , and I have a conditional where I want to take the branch ONLY if the tuple is not in the list (if it is in the list, then I don't want to take the if branch)
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What is the correct way of using C++11's range-based for?
...f using for (const auto& x : v) just fails to compile.
g++ outputs an error message something like this:
TestRangeFor.cpp:138:11: error: assignment of read-only reference 'x'
x *= 10;
^
The correct approach in this case is capturing by non-const reference:
vector<...
Constant pointer vs Pointer to constant [duplicate]
...pointer
constant_pointer.c: In function ‘main’:
constant_pointer.c:13: error: increment of read-only variable ‘ptr’
Hence we see very clearly above that compiler complains that we cannot changes the address held by a constant pointer.
Pointer to Constants
#include<stdio.h>
int mai...