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How do I convert a Vector of bytes (u8) to a string
...string slice (assuming a UTF-8 encoding):
use std::str;
//
// pub fn from_utf8(v: &[u8]) -> Result<&str, Utf8Error>
//
// Assuming buf: &[u8]
//
fn main() {
let buf = &[0x41u8, 0x41u8, 0x42u8];
let s = match str::from_utf8(buf) {
Ok(v) => v,
E...
Getting an empty JQuery object
...Consider:
<select id="select" name="select">
<option value="msg_1">Message 1</option>
<option value="msg_2">Message 1</option>
<option value="msg_3">Message 1</option>
</select>
<div class="msg_1 msg_3">
...
</div>
<div class=...
NASM x86汇编入门指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...编入门指南原文链接:http: docs.cs.up.ac.za programming asm derick_tut #helloworld内容1.介绍2.为什么写这篇文章3.NASM(The...NASM x86汇编入门指南
原文链接:http://docs.cs.up.ac.za/programming/asm/derick_tut/#helloworld
内容
1. 介绍
2. 为什么写这篇文...
PHP convert XML to JSON
...vert xml to json in php. If I do a simple convert using simple xml and json_encode none of the attributes in the xml show.
...
How to download image from url
..."https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-xpf1/v/t34.0-12/10555140_10201501435212873_1318258071_n.jpg?oh=97ebc03895b7acee9aebbde7d6b002bf&oe=53C9ABB0&__gda__=1405685729_110e04e71d9");
using (MemoryStream mem = new MemoryStream(data))
{
using (var yourImage = Image.Fro...
What is the default text size on Android?
...
Default values in appcompat-v7
<dimen name="abc_text_size_body_1_material">14sp</dimen>
<dimen name="abc_text_size_body_2_material">14sp</dimen>
<dimen name="abc_text_size_button_material">14sp</dimen>
<dimen name="abc_text_size_caption...
Can I find events bound on an element with jQuery?
...
In modern versions of jQuery, you would use the $._data method to find any events attached by jQuery to the element in question. Note, this is an internal-use only method:
// Bind up a couple of event handlers
$("#foo").on({
click: function(){ alert("Hello") },
mous...
Add Foreign Key to existing table
...
To add a foreign key (grade_id) to an existing table (users), follow the following steps:
ALTER TABLE users ADD grade_id SMALLINT UNSIGNED NOT NULL DEFAULT 0;
ALTER TABLE users ADD CONSTRAINT fk_grade_id FOREIGN KEY (grade_id) REFERENCES grades(id);
...
Call Go functions from C
...ackage foo
// #include <somelib.h>
// extern int goProgressCB(uint64_t current, uint64_t total, void* userdata);
//
// static int goGetFiles(some_t* handle, void* userdata) {
// return somelib_get_files(handle, goProgressCB, userdata);
// }
import "C"
import "unsafe"
Note that the goGet...
Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
... C++)
However, it would be better to check whether C++ is in use (via the __cplusplus macro) and actually use true and false.
In a C compiler, this is equivalent to 0 and 1.
(note that removing the parentheses will break that due to order of operations)
...