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How can I convert a file pointer ( FILE* fp ) to a file descriptor (int fd)?
... FILE * , returned by a call to fopen() . I need to get a file descriptor from it, to make calls like fsync(fd) on it. What's the function to get a file descriptor from a file pointer?
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What is the maximum characters for the NVARCHAR(MAX)?
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I believe this to be outdated. See answer from @marc_s.
– Fabio Milheiro
Jun 12 '19 at 19:51
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Algorithms based on number base systems? [closed]
... the head of the data structure can be efficient.
Avoid cascading borrows (from taking the tail of the list) and carries (from consing onto the list) by segmenting the data structure
Here is also the reference list for that chapter:
Guibas, McCreight, Plass and Roberts: A new representation for ...
How does Facebook disable the browser's integrated Developer Tools?
...ain trick.
Epilogue: The Chrome team decided that defeating the console from user-side JS was a bug and fixed the issue, rendering this technique invalid. Afterwards, additional protection was added to protect users from self-xss.
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Get __name__ of calling function's module in Python
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Inside a function, inspect.stack()[1] will return your caller's stack. From there, you can get more information about the caller's function name, module, etc.
See the docs for details:
http://docs.python.org/library/inspect.html
Also, Doug Hellmann has a nice writeup of the inspect module in ...
NSUserDefaults removeObjectForKey vs. setObject:nil
...l.
here is how to test if setting key value to nil removed the key entry from NSUserDefaults standardUserDefaults.
NSArray *keys = [[[NSUserDefaults standardUserDefaults] dictionaryRepresentation] allKeys] copy];
for(NSString *key in keys) {
NSLog(@"Key Name: %@", key);
}
[keys release]...
How to use relative/absolute paths in css URLs?
...er - it should work for both cases, as long as the structure is the same.
From https://www.w3.org/TR/CSS1/#url:
Partial URLs are interpreted relative to the source of the style sheet, not relative to the document
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Why does Popen.communicate() return b'hi\n' instead of 'hi'?
...of the bytes you have. If you know the encoding of the bytes you received from the subprocess, you can use decode() to convert them into a printable str:
>>> print(b'hi\n'.decode('ascii'))
hi
Of course, this specific example only works if you actually are receiving ASCII from the subpro...
A top-like utility for monitoring CUDA activity on a GPU
... Nvidia-smi have this building loop! Is the "watch" command very different from the nvidia-smi -l ?
– Mohammad Javad
Jan 13 at 1:22
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What Every Programmer Should Know About Memory?
... much of Ulrich Drepper's What Every Programmer Should Know About Memory from 2007 is still valid. Also I could not find a newer version than 1.0 or an errata.
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