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mingw-w64 threads: posix vs win32
I'm installing mingw-w64 on Windows and there are two options: win32 threads and posix threads. I know what is the difference between win32 threads and pthreads but I don't understand what is the difference between these two options. I doubt that if I will choose posix threads it will prevent me fro...
Increase heap size in Java
I am working on a Windows 2003 server (64-bit) with 8 GB RAM. How can I increase the heap memory maximum? I am using the -Xmx1500m flag to increase the heap size to 1500 Mb. Can I increase the heap memory to 75% of physical memory (6 GB Heap)?
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“No such file or directory” error when executing a binary
I was installing a binary Linux application on Ubuntu 9.10 x86_64. The app shipped with an old version of gzip (1.2.4), that was compiled for a much older kernel:
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MQTT物联网协议完全实践指南 · App Inventor 2 中文网
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MQTT扩展下载：
de.ullisroboterseite.ursai2pahomqtt.aix
完整示例项目：
mqtt_demo.aia
MQTT协议深度解析
1. 协议架构与通信模式
MQTT采用客户端-服务器架构，基于发布/订阅（Publish/Subscribe）...
What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
...at least 32 bits (2^31-1 on either side of zero) and long long is at least 64 (2^63-1 on either side).
– chris
Sep 24 '13 at 1:55
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Base64: What is the worst possible increase in space usage?
If a server received a base64 string and wanted to check it's length before converting,, say it wanted to always permit the final byte array to be 16KB. How big could a 16KB byte array possibly become when converted to a Base64 string (assuming one byte per character)?
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Key hash for Android-Facebook app
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Here are the steps-
Download openssl from Google code (If you have a 64 bit machine you must download openssl-0.9.8e X64 not the latest version)
Extract it. create a folder- OpenSSL in C:/ and copy the extracted code here.
detect debug.keystore file path. If u didn't find, then do a search in ...
How does Python manage int and long?
...hon 2: sys.maxint contains the maximum value a Python int can hold.
On a 64-bit Python 2.7, the size is 24 bytes. Check with sys.getsizeof().
Python 3: sys.maxsize contains the maximum size in bytes a Python int can be.
This will be gigabytes in 32 bits, and exabytes in 64 bits.
Such a large in...
Undefined symbols for architecture arm64
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The issue is that the cocoapods have not been built for arm64 architecture yet thus they cannot be linked when you build them. Likely you cannot use those packages until they are updated and use that architecture. You can fix the linker error by going to project -> target (your ...
Maximum length of a table name in MySQL
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64 characters according to this.
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