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Why are these numbers not equal?
...intf("%.54f",0.9)
#[1] "0.900000000000000022204460492503130808472633361816406250"
You can see these numbers are different, but the representation is a bit unwieldy. If we look at them in binary (well, hex, which is equivalent) we get a clearer picture:
sprintf("%a",0.9)
#[1] "0x1.ccccccccccccdp-...
Forward function declarations in a Bash or a Shell script?
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This seems somewhat analogous to what if _ _ name _ _ == "_ _ main _ _": main() does in python
– Sergiy Kolodyazhnyy
Feb 13 '16 at 7:13
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How do you turn a Mongoose document into a plain object?
...the result of doc.toObject().
http://mongoosejs.com/docs/api.html#document_Document-toObject
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How to truncate the time on a DateTime object in Python?
...second=0)
– Brad M
Oct 11 '14 at 10:06
3
OP wants datetime, not date object (that you could get u...
Get value from SimpleXMLElement Object
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Just noticed if you json_encode the xml object and then json_decode it you get a nested stdObject to deal with, quite handy for when you're being lazy & working with simple structures :D
– Louis
Sep 20 '13 ...
Convert integer to hexadecimal and back again
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answered Jul 16 '09 at 20:06
Scott IveyScott Ivey
37.7k1818 gold badges7575 silver badges115115 bronze badges
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Rename MySQL database [duplicate]
...st copy, adapt & paste this snippet:
mysql -e "CREATE DATABASE \`new_database\`;"
for table in `mysql -B -N -e "SHOW TABLES;" old_database`
do
mysql -e "RENAME TABLE \`old_database\`.\`$table\` to \`new_database\`.\`$table\`"
done
mysql -e "DROP DATABASE \`old_database\`;"
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How do I safely pass objects, especially STL objects, to and from a DLL?
...t you maintain a standard calling convention; if you declare a function as _cdecl, the default for C++, and try to call it using _stdcall bad things will happen. _cdecl is the default calling convention for C++ functions, however, so this is one thing that won't break unless you deliberately break i...
Suppressing deprecated warnings in Xcode
...ry -Wno-deprecated-declarations, or its corresponding setting in Xcode, GCC_WARN_ABOUT_DEPRECATED_FUNCTIONS (pro tip: just type in "deprecated" in the build settings to find the specific setting for this warning).
Current versions of Xcode (e.g. Xcode 9.2):
Ancient versions of Xcode (e.g. Xcod...
Calling Python in Java?
...yObject someFunc = interpreter.get("funcName");
PyObject result = someFunc.__call__(new PyString("Test!"));
String realResult = (String) result.__tojava__(String.class);
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