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How to use the PI constant in C++
...h include <math.h> . However, there doesn't seem to be a definition for PI in this header file.
21 Answers
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How to insert element into arrays at specific position?
...ns. array_merge's behavior with respect to numeric keys is not appropriate for this question.
– Artefacto
May 19 '13 at 0:09
12
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Get generated id after insert
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@UnknownJoe I know this is old post. But may be helpful for someone. The row id and autoincremented id will be same even if it is deleted from middle.
– Raj kannan Iyyappan
Oct 4 '18 at 21:25
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How to run a python script from IDLE interactive shell?
.../app/filename.py').read())
See https://stackoverflow.com/a/437857/739577 for passing global/local variables.
In deprecated Python versions
Python2
Built-in function: execfile
execfile('helloworld.py')
It normally cannot be called with arguments. But here's a workaround:
import sys
sys.argv...
Is it true that one should not use NSLog() on production code?
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Preprocessor macros are indeed great for debugging. There's nothing wrong with NSLog(), but it's simple to define your own logging function with better functionality. Here's the one I use, it includes the file name and line number to make it easier to track down...
Get $_POST from multiple checkboxes
I have 1 form in with multiple checkboxes in it (each with the code):
6 Answers
6
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“is” operator behaves unexpectedly with integers
...ound in the Python 2 documentation, "Plain Integer Objects" (It's the same for Python 3):
The current implementation keeps an
array of integer objects for all
integers between -5 and 256, when you
create an int in that range you
actually just get back a reference to
the existing object...
How to use Single TextWatcher for multiple EditTexts?
...t widgets in my view layout. Is there a way to use a single TextWatcher for all three EditTexts ?
13 Answers
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Google breakpad stackwalker无法加载符号 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ys.argv) < 2:
print ("Please input binary files.")
sys.exit(2)
for i in range(1,len(sys.argv)):
binary = sys.argv[i]
outputFile = basename(binary) + ".sym"
command = '{0} {1} > {2}'.format("dump_syms",binary,outputFile)
print ('--> Running {0}'.format(command) )
o...
Creating a UICollectionView programmatically
I'm looking for a guide or tutorial that will show me how to set up a simple UICollectionView using only code.
12 Answers
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