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What is the strict aliasing rule?
...evice/network msg) onto a buffer of the word size of your system (like a pointer to uint32_ts or uint16_ts). When you overlay a struct onto such a buffer, or a buffer onto such a struct through pointer casting you can easily violate strict aliasing rules.
So in this kind of setup, if I want to send ...
Why do we need boxing and unboxing in C#?
...rom the way that reference types represent their underlying data (e.g., an int is just a bucket of thirty-two bits which is completely different than a reference type).
Think of it like this. You have a variable o of type object. And now you have an int and you want to put it into o. o is a referen...
libevent+protobuf轻松搭建tcpserver - C/C++ - 清泛网 - 专注C/C++及内核技术
...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(),bind(),listen(),set...
Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
...ype float are passed as variadic parameters, such arguments are implicitly converted to type double. This is the reason why in printf format specifiers %f and %lf are equivalent and interchangeable. In printf you can "cross-use" %lf with float or %f with double.
But there's no reason to actually do...
How to use ADB to send touch events to device using sendevent command?
...
If you don't want to have to convert the hex to decimal, you can let your shell do it: adb shell input tap $((16#2f5)) $((16#69e)). Also, just to be pedantic, 0x2F5 and 0x69E are 757 and 1694 respectively... What did you use to convert between bases?
...
What does int argc, char *argv[] mean?
...s are passed to main() in C and C++.
argc will be the number of strings pointed to by argv. This will (in practice) be 1 plus the number of arguments, as virtually all implementations will prepend the name of the program to the array.
The variables are named argc (argument count) and argv (argume...
Declaring pointers; asterisk on the left or right of the space between the type and name? [duplicate
...of code. (This applies to C and C++, by the way.) People seem to declare pointers in one of two ways, and I have no idea which one is correct, of if it even matters.
...
How to uglify output with Browserify in Gulp?
...
You actually got pretty close, except for one thing:
you need to convert the streaming vinyl file object given by source() with vinyl-buffer because gulp-uglify (and most gulp plugins) works on buffered vinyl file objects
So you'd have this instead
var browserify = require('browserify')...
Live character count for EditText
... new TextWatcher() {
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
//This sets a textview to the current length
mTextView.setText(String.v...
What is a C++ delegate?
...ing operator()
struct Functor
{
// Normal class/struct members
int operator()(double d) // Arbitrary return types and parameter list
{
return (int) d + 1;
}
};
// Use:
Functor f;
int i = f(3.14);
Option 2: lambda expressions (C++11 only)
// Syntax is roughly: [c...