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switch / pattern matching idea
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answered Dec 13 '17 at 14:18
Marcus PierceMarcus Pierce
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Differences in boolean operators: & vs && and | vs ||
...e are the bitwise AND and bitwise OR operators.
int a = 6; // 110
int b = 4; // 100
// Bitwise AND
int c = a & b;
// 110
// & 100
// -----
// 100
// Bitwise OR
int d = a | b;
// 110
// | 100
// -----
// 110
System.out.println(c); // 4
System.out.println(d); // 6
Thanks to...
Why doesn't list have safe “get” method like dictionary?
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24
Python doesn't allow monkeypatching builtin types like list
– Imran
Feb 26 '11 at 7:32
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How do I prevent Android taking a screenshot when my app goes to the background?
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answered Mar 22 '12 at 12:48
CommonsWareCommonsWare
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How to parse a string into a nullable int
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54
@Chris, the compiler doesn't like your inline if statement (These types are not compatible: 'int' : 'null'). I had to amend it to: return In...
How to get temporary folder for current user
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4 Answers
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What is a mixin, and why are they useful?
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edited Jul 4 '18 at 13:12
dalore
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a...
How to calculate a time difference in C++
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edited Mar 26 '14 at 17:23
Diego Sevilla
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libevent+protobuf轻松搭建tcpserver - C/C++ - 清泛网 - 专注C/C++及内核技术
libevent+protobuf轻松搭建tcpserver1. 基础代码 设置某fd为O_NONBLOCK模式 int set_non_block(int fd); server端socket流程:socket(),setsoc...1. 基础代码
// 设置某fd为O_NONBLOCK模式
int set_non_block(int fd);
// server端socket流程:socket(),setsockopt(),bi...
Should I use multiplication or division?
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Python:
time python -c 'for i in xrange(int(1e8)): t=12341234234.234 / 2.0'
real 0m26.676s
user 0m25.154s
sys 0m0.076s
time python -c 'for i in xrange(int(1e8)): t=12341234234.234 * 0.5'
real 0m17.932s
user 0m16.481s
sys 0m0.048s
multiplication is 33% faster...