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How do I convert a double into a string in C++?
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The boost (tm) way:
std::string str = boost::lexical_cast<std::string>(dbl);
The Standard C++ way:
std::ostringstream strs;
strs << dbl;
std::string str = strs.str();
Note: Don't forget #include <sstream>
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Django: ImproperlyConfigured: The SECRET_KEY setting must not be empty
...Greenfield's book Two scoops of Django.
I resolved the issue by setting
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "project_name.settings.local")
in manage.py and wsgi.py.
Update:
In the above solution, local is the file name (settings/local.py) inside my settings folder, which holds the...
How do I make a Mac Terminal pop-up/alert? Applescript?
...ice, whatever that displays my custom text. How is this done? Also, is it possible to make one with several buttons that sets a variable?
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Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...来把左侧树保存为一张图片；Capture Layers用来保存psd的PhotoShop分层素材；右侧剧中显示选中View的当前属性状态；右下角显示当前View在Activity中的位置等；左下角三个进行切换；Load View Hierarchy用来手动刷新变化（不会自动刷新的...
Is [UIScreen mainScreen].bounds.size becoming orientation-dependent in iOS8?
I ran the following code in both iOS 7 and iOS 8:
18 Answers
18
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How to handle back button in activity
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"finish()" closes your current activity only. You need to handle going back to your previous activity by using intent. Btw, your previous activity should still be open if you did not "finish()" it when navigating from it previously.
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Releasing memory in Python
...l me what you get. Here's the link for psutil.Process.memory_info.
import os
import gc
import psutil
proc = psutil.Process(os.getpid())
gc.collect()
mem0 = proc.get_memory_info().rss
# create approx. 10**7 int objects and pointers
foo = ['abc' for x in range(10**7)]
mem1 = proc.get_memory_info()....
Highlight text similar to grep, but don't filter out text [duplicate]
...but won't get printed/highlighted since it's not a character.
(Note that most of the setups will use --color by default. You may not need that flag).
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How can I output a UTF-8 CSV in PHP that Excel will read properly?
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To quote a Microsoft support engineer,
Excel for Mac does not currently support UTF-8
Update, 2017: This is true of all versions of Microsoft Excel for Mac before Office 2016. Newer versions (from Office 365) do now support UTF-8.
In...
What is the easiest way to get current GMT time in Unix timestamp format?
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Output:
1369550494.884832
For the standard CPython implementation on most platforms this will return a UTC value.
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