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Int division: Why is the result of 1/3 == 0?
...at least one operand of type long, then the operation is carried out using 64-bit precision, and the result of the numerical operator is of type long. If the other operand is not long, it is first widened (§5.1.5) to type long by numeric promotion (§5.6).
And an example is always the best way t...
Find where python is installed (if it isn't default dir)
...ff:
$ python
Python 2.6.6 (r266:84297, Aug 24 2010, 18:13:38) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.executable
'c:\\Python26\\python.exe'
>>> sys.exec_prefix
'c:\\Python26'
>&g...
user authentication libraries for node.js?
...
TomTom
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6个变态的C语言Hello World程序 - 创意 - 清泛网 - 专注C/C++及内核技术
...ne ___ _(0x6F)_(0x2C)_(0x20)_(0x77)_(0x6F)
#define ____ _(0x72)_(0x6C)_(0x64)_(0x21)
#define _____ __ ___ ____ _________
#include<stdio.h>
_____
hello2.c
#include<stdio.h>
main(){
int x=0,y[14],*z=&y;*(z++)=0x48;*(z++)=y[x++]+0x1D;
*(z++)=y[x++]+0x07;*(z++)=y[x++]+0x00;*(...
error: ‘uint16_t’ does not name a type - C/C++ - 清泛网 - 专注C/C++及内核技术
...typedef int int32_t;
typedef unsigned uint32_t;
typedef long long int64_t;
typedef unsigned long long uint64_t;
uint16_t
C++类的前置申明 - C/C++ - 清泛网 - 专注C/C++及内核技术
...用前置申明后，只能使用A的指针（32位编译器占4字节，64位编译器占8字节...class A; （而非 include "A.h"，可能暂时都没有类A的定义）
使用前置申明后，只能使用A的指针（32位编译器占4字节，64位编译器占8字节），new一个A对象...
Python学习之Jupyter Notebook和highchart安装 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
Python学习之Jupyter Notebook和highchart安装运行环境Win7 64位 + Python3 5 2一、安装网页端编译器Jupyter Notebook在cmd输入pip3 install jupyter在cmd输入jupyter notebook,
运行环境
Win7 64位 + Python3.5.2
一、安装网页端编译器Jupyter Notebook
在cm...
Linux MySql编译安装 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Linux MySql编译安装安装环境：centos 6.4 x86_64curl -O http: cdn.mysql.com Downloads MySQL-5.6 mysql-5.6.12.tar.gztar -zxf mysql-5.6.12cd mysq...安装环境：centos 6.4 x86_64
#下载mysql源码包
curl -O http://cdn.mysql.com/Downloads/MySQL-5.6/mysql-5.6.12.tar.gz
tar -zxf mysql-5....
error: ‘uint16_t’ does not name a type - c++1y / stl - 清泛IT社区，为创新赋能！
..._t;
typedef unsigned uint32_t;
typedef long long int64_t;
typedef unsigned long long uint64_t;复制代码
CPU指令集avx程序无法运行，运行崩溃 - C/C++ - 清泛网 - 专注C/C++及内核技术
... lscpu 命令查看CPU指令集，看是否支持。比如_mm256_cmpeq_epi64 这个函数需要avx2指令集，但是CPU不支持，就导致程序崩溃起不来。原因就是CPU不支持相应的指令集导致的。
Linux上使用 lscpu 命令查看CPU指令集，看是否支持。
比如 _m...