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Debug vs Release in CMake
...Then from the root of your project:
mkdir Release
cd Release
cmake -DCMAKE_BUILD_TYPE=Release ..
make
And for Debug (again from the root of your project):
mkdir Debug
cd Debug
cmake -DCMAKE_BUILD_TYPE=Debug ..
make
Release / Debug will add the appropriate flags for your compiler. There are als...
Concurrent.futures vs Multiprocessing in Python 3
...o make it work:
from concurrent.futures import ProcessPoolExecutor
def pool_factorizer_map(nums, nprocs):
# Let the executor divide the work among processes by using 'map'.
with ProcessPoolExecutor(max_workers=nprocs) as executor:
return {num:factors for num, factors in
...
Best way to test for a variable's existence in PHP; isset() is clearly broken
...variable you are checking would be in the global scope you could do:
array_key_exists('v', $GLOBALS)
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How do you get a Golang program to print the line number of the error it just called?
... // the error happened, 0 = this function, we don't want that.
_, fn, line, _ := runtime.Caller(1)
log.Printf("[error] %s:%d %v", fn, line, err)
b = true
}
return
}
//this logs the function name as well.
func FancyHandleError(err error) (b bool) {
if err != n...
Is there any sed like utility for cmd.exe? [closed]
...ershell saved me.
For grep there is:
get-content somefile.txt | where { $_ -match "expression"}
or
select-string somefile.txt -pattern "expression"
and for sed there is:
get-content somefile.txt | %{$_ -replace "expression","replace"}
For more detail see Zain Naboulsis blog entry.
...
Peak-finding algorithm for Python/SciPy
...
The function scipy.signal.find_peaks, as its name suggests, is useful for this. But it's important to understand well its parameters width, threshold, distance and above all prominence to get a good peak extraction.
According to my tests and the document...
IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
...d onSaveInstanceState(Bundle outState) {
outState.putString("WORKAROUND_FOR_BUG_19917_KEY", "WORKAROUND_FOR_BUG_19917_VALUE");
super.onSaveInstanceState(outState);
}
In the end the proper solution was (as seen in the comments) to use :
transaction.commitAllowingStateLoss();
when adding ...
Visual Studio window which shows list of methods
...class
Resharper help:
http://www.jetbrains.com/resharper/webhelp/Reference__Windows__File_Structure_Window.html
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Constantly print Subprocess output while process is running
...example showing a typical use case (thanks to @jfs for helping out):
from __future__ import print_function # Only Python 2.x
import subprocess
def execute(cmd):
popen = subprocess.Popen(cmd, stdout=subprocess.PIPE, universal_newlines=True)
for stdout_line in iter(popen.stdout.readline, "")...
Converting datetime.date to UTC timestamp in Python
...ase on the given platform. You could use pytz module (e.g., via tzlocal.get_localzone()) to get access to the tz database on all platforms. Also, utcfromtimestamp() may fail and mktime() may return non-POSIX timestamp if "right" timezone is used.
To convert datetime.date object that represents da...