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Get Base64 encode file-data from Input Form
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The easy way:
The readAsDataURL() method might already encode it as base64 for you. You'll probably need to strip out the beginning stuff (up to the first ,), but that's no biggie. This would take all the fun out though.
The hard way:
If you want to try it the hard way (or it doesn't work), loo...
Compiling problems: cannot find crt1.o
...m is you likely only have the gcc for your current architecture and that's 64bit. You need the 32bit support files. For that, you need to install them
sudo apt install gcc-multilib
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App Inventor 2 连接方式：AI伴侣、模拟器、USB · App Inventor 2 中文网
...并启动它。
开始测试：连接 –> AI伴侣，复制 6 位字符码，粘贴到模拟器中的AI伴侣中，点“使用编码连接”即可。
Q：模拟器有什么不足吗？
A：使用模拟器无法完成与真实手机相同的所有操作，例如，无法摇动...
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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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 ...