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How to throw std::exceptions with variable messages?

...atter & operator << (const Type & value) { stream_ << value; return *this; } std::string str() const { return stream_.str(); } operator std::string () const { return stream_.str(); } enum ConvertToString { to_str };...
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How to log source file name and line number in Python

...='%Y-%m-%d:%H:%M:%S', level=logging.DEBUG) logger = logging.getLogger(__name__) logger.debug("This is a debug log") logger.info("This is an info log") logger.critical("This is critical") logger.error("An error occurred") Generates this output: 2017-06-06:17:07:02,158 DEBUG [log.py:11] Thi...
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is_null($x) vs $x === null in PHP [duplicate]

...someone strongly suggested that I use is_null() instead as it is specifically designed for the null-evaluation purpose. He also started talking about math or something. ...
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Where to find extensions installed folder for Google Chrome on Mac?

... You can find all Chrome extensions in below location. /Users/{mac_user}/Library/Application Support/Google/Chrome/Default/Extensions share | ...
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json.dumps vs flask.jsonify

...dumps() method will just return an encoded string, which would require manually adding the MIME type header. See more about the jsonify() function here for full reference. Edit: Also, I've noticed that jsonify() handles kwargs or dictionaries, while json.dumps() additionally supports lists and oth...
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Read url to string in few lines of java code

... Just don't forget you need to call Scanner#close() later. – Marcelo Dec 21 '12 at 3:55 2 ...
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Difference between del, remove and pop on lists

...gt;>> a = [4, 5, 6] >>> a.remove(7) Traceback (most recent call last): File "<stdin>", line 1, in <module> ValueError: list.remove(x): x not in list >>> del a[7] Traceback (most recent call last): File "<stdin>", line 1, in <module> IndexError: lis...
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Import regular CSS file in SCSS file?

...port a regular CSS file with Sass's @import command? While I'm not using all of the SCSS syntax from sass, I do still enjoy it's combining/compressing features, and would like to be able to use it without renaming all of my files to *.scss ...
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How do I use Ruby for shell scripting?

...r, options) rm(list, options) rm_r(list, options) rm_rf(list, options) install(src, dest, mode = <src's>, options) chmod(mode, list, options) chmod_R(mode, list, options) chown(user, group, list, options) chown_R(user, group, list, options) touch(list, options) Which is pretty nice ...
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How to resolve “must be an instance of string, string given” prior to PHP 7?

... supposed to work to begin with. Given the dynamic typing system, this actually makes some sort of perverted sense. You can only manually "type hint" scalar types: function foo($string) { if (!is_string($string)) { trigger_error('No, you fool!'); return; } ... } ...