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Can I list-initialize a vector of move-only type?
...ove_only()) };
Since the standard, for whatever reason, doesn't define a converting copy constructor like this:
// in class initializer_list
template<class U>
initializer_list(initializer_list<U> const& other);
The initializer_list<rref_wrapper<move_only>> created by...
What is the difference between bool and Boolean types in C#
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Am sorry but that is wrong, you cannot convert bool or Bolean to null because they are nullable types
– Timothy Macharia
Feb 22 '16 at 6:03
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SQL Server String or binary data would be truncated
...enable new behavior you need to use DBCC TRACEON(460). New error text from sys.messages:
SELECT * FROM sys.messages WHERE message_id = 2628
2628 – String or binary data would be truncated in table ‘%.*ls’, column ‘%.*ls’. Truncated value: ‘%.*ls’.
String or Binary data would be...
QString to char* conversion
I was trying to convert a QString to char* type by the following methods, but they don't seem to work.
10 Answers
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Reimport a module in python while interactive
...function or class from a module, you can do this:
import importlib
import sys
importlib.reload(sys.modules['my_module'])
from my_module import my_function
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How do you round UP a number in Python?
....0
NOTE: The input should be float.
If you need an integer, call int to convert it:
>>> int(math.ceil(5.4))
6
BTW, use math.floor to round down and round to round to nearest integer.
>>> math.floor(4.4), math.floor(4.5), math.floor(5.4), math.floor(5.5)
(4.0, 4.0, 5.0, 5.0)
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Enum String Name from Value
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You can convert the int back to an enumeration member with a simple cast, and then call ToString():
int value = GetValueFromDb();
var enumDisplayStatus = (EnumDisplayStatus)value;
string stringValue = enumDisplayStatus.ToString();
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How do I check to see if a value is an integer in MySQL?
I see that within MySQL there are Cast() and Convert() functions to create integers from values, but is there any way to check to see if a value is an integer? Something like is_int() in PHP is what I am looking for.
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Logic to test that 3 of 4 are True
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This is well defined in C++: the standard (§4.7/4) indicates that converting bool to int gives the expected values 0 or 1.
In Java and C#, you can use the following construct:
if ((a?1:0) + (b?1:0) + (c?1:0) + (d?1:0) == 3)
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Declaring an unsigned int in Java
...g l = ulong(1);
All of these types extend java.lang.Number and can be converted into higher-order primitive types and BigInteger. Hope this helps.
(Disclaimer: I work for the company behind these libraries)
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