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How to do a logical OR operation in shell scripting
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Coding DistrictCoding District
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Getting a File's MD5 Checksum in Java
I am looking to use Java to get the MD5 checksum of a file. I was really surprised but I haven't been able to find anything that shows how to get the MD5 checksum of a file.
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What are all the common undefined behaviours that a C++ programmer should know about? [closed]
... Hm... NaN (x / 0) and Infinity (0 / 0) were covered by the IEE 754, if C++ was designed later, why does it record x / 0 as undefined?
– new123456
Apr 5 '11 at 13:22
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Constant pointer vs Pointer to constant [duplicate]
...shall not be modified.
const int a = 10;
const int* ptr = &a;
*ptr = 5; // wrong
ptr++; // right
While
int * const ptr;
declares ptr a const pointer to int type. You are not allowed to modify ptr but the object pointed to by ptr can be modified.
int a = 10;
int *const ptr = &a;
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How to write a large buffer into a binary file in C++, fast?
...the code in the question used one core 100%, whereas this code only uses 2-5%.
Thanks a lot to everyone.
Update: 5 years have passed it's 2017 now. Compilers, hardware, libraries and my requirements have changed. That's why I made some changes to the code and did some new measurements.
First up t...
Add disabled attribute to input element using Javascript
...depends."
You should read this answer instead: https://stackoverflow.com/a/5876747/257493
And their release notes for that change are included here:
Neither .attr() nor .prop() should be used for getting/setting value. Use the .val() method instead (although using .attr("value", "somevalue") will c...
Is this the right way to clean-up Fragment back stack when leaving a deeply nested stack?
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252
Well there are a few ways to go about this depending on the intended behavior, but this link sh...
Query for documents where array size is greater than 1
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510
Update:
For mongodb versions 2.2+ more efficient way to do this described by @JohnnyHK in ano...
Query grants for a table in postgres
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answered Sep 7 '11 at 15:40
markusmarkus
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Convert a binary NodeJS Buffer to JavaScript ArrayBuffer
...the buf.buffer property directly, as per https://stackoverflow.com/a/31394257/1375574. The Buffer constructor also takes an ArrayBufferView argument if you need to go the other direction.
Note that this will not create a copy, which means that writes to any ArrayBufferView will write through to th...