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Programmatically retrieve memory usage on iPhone
...iB): %f", ((CGFloat)info.resident_size / 1048576));
} else {
NSLog(@"Error with task_info(): %s", mach_error_string(kerr));
}
}
There is also a field in the structure info.virtual_size which will give you the number of bytes available virtual memory (or memory allocated to your application...
Understanding the map function
...your function should look for None and handle them, otherwise you will get errors. In Python 3 map() will stop after finishing with the shortest list. Also, in Python 3, map() returns an iterator, not a list.
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Solution for “Fatal error: Maximum function nesting level of '100' reached, aborting!” in PHP
I have made a function that finds all the URLs within an html file and repeats the same process for each html content linked to the discovered URLs. The function is recursive and can go on endlessly. However, I have put a limit on the recursion by setting a global variable which causes the recursion...
Find index of last occurrence of a substring in a string
... recent call last):
File "<stdin>", line 1, in <module>
ValueError: substring not found
The difference is when the substring is not found, rfind() returns -1 while rindex() raises an exception ValueError (Python2 link: ValueError).
If you do not want to check the rfind() return cod...
汇编语言超浓缩教程（汇编入门必备） - C/C++ - 清泛网 - 专注C/C++及内核技术
....COM即可。现在，磁盘上应该有 SMILE.COM 文件了，你只要在提示符号C：>下，直接输入文件名称 SMILE ，就可以执行这个程序了。
你是否觉得用编译器产生程序的方法，比 DEBUG 麻烦多了！以小程序而言，的确是如此，但对于较...
Set every cell in matrix to 0 if that row or column contains a 0
... row and column are both 1s.
Coding it will be tricky to avoid off-by-one errors etc but it should work in one pass.
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Which characters need to be escaped when using Bash?
... FYI bash's %q was broken for a long time - If my mind serves me well, an error was fixed (but might still be broken) in 2013 after being broken for ~10 years. So don't rely on it.
– Jo So
Feb 3 '17 at 17:36
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How to convert / cast long to String?
...) ?
– Marcelo Assis
Feb 8 '12 at 13:05
4
@MarceloAssis.. concat is about 2x slower. If performanc...
How do I determine k when using k-means clustering?
... clear is how you choose the value of k. Is it just a matter of trial and error, or is there more to it?
19 Answers
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Useful code which uses reduce()? [closed]
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answered Jul 17 '10 at 17:05
ssolerssoler
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