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Advantages of std::for_each over for loop
...say when the source is a collection of different types, and I want them to convert into Element.
– Nawaz
Aug 8 '16 at 8:56
...
SQL how to make null values come last when sorting ascending
...using the method for ints above:
SELECT *
FROM Employees
ORDER BY ISNULL(CONVERT(INT, HireDate)*0, 1), HireDate
(Lets pretend the schema has HireDate.)
These methods avoid the issue of having to come up with or manage a "maximum" value of every type or fix queries if the data type (and the maxi...
How do I get the type of a variable?
... use either myClassA or myClassB type. On a mismatch, I need to spend time converting the data.
switch ((typeid(T)) {
case typeid(myClassA):
// handle that case
break;
case typeid(myClassB):
// handle that case
break;
case typeid(uint32_t):
// handle that case
break;
...
Compare if BigDecimal is greater than zero
...on input for this simple things, it may help for complex scenario. you are converting to intvalue again. so cost to convert, and this will fail for 0.33 as it will convert to int 0
– P Satish Patro
Aug 26 at 14:35
...
Comparison of C++ unit test frameworks [closed]
...(Foo(), Blah());
}
THEORY("Foo should return the same value it was given, converted to string", (int input, std::string expected),
std::make_tuple(0, "0"),
std::make_tuple(1, "1"),
std::make_tuple(2, "2"))
{
Assert.Equal(expected, Foo(input));
}
Main features:
Incredibly fast: t...
What is the correct way of using C++11's range-based for?
...but instead returns (by value) a temporary object,
which is a proxy class convertible to bool.
(See also this question and related answers here on StackOverflow.)
To modify in place the elements of vector<bool>, a new kind of syntax (using auto&&)
must be used:
for (auto&& ...
What is Bit Masking?
...
Also, to convert an integer to an odd no. if it is an even number: i=i|1. This comes in handy when we are trying to generate a sequence like 1, 3, 5,..., 2, 4, 6,...
– Harshit Sharma
Mar 6 '19 at...
How do I format a long integer as a string without separator in Java?
...
@RAnders00 Converting a number into a single string is unlikely to be the most optimal option, depending on the context you can usually avoid it entirely, but for the simplest pattern you can use ""+
– Peter Lawrey...
Using std Namespace
...entifier not recognized' error you often end up with a more obscure 'can't convert argument X' or 'unable to generate function from template' style error. Worse is if a wrong function gets called silently. It's rare, but happens.
– CB Bailey
Aug 12 '09 at 21:47...
Pick any kind of file via an Intent in Android
...
How to convert getting uri into util.File ?
– Anand Savjani
Aug 12 '15 at 13:36
...