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How to read a text file reversely with iterator in C#
...lt;/summary>
public sealed class ReverseLineReader : IEnumerable<string>
{
/// <summary>
/// Buffer size to use by default. Classes with internal access can specify
/// a different buffer size - this is useful for testing.
/// </summary>
...
What does template mean?
...@JohannesSchaub-litb so there is no way to type template with let say std::string? like template<std::string S> class with some static counter in it to create unique id for every different string? hashing string to int would be the only way unfortunately right?
– relaxxx
...
`Apache` `localhost/~username/` not working
...module libexec/apache2/mod_userdir.so
and
#Include /private/etc/apache2/extra/httpd-userdir.conf
Then in httpd-userdir.conf you may need to uncomment:
#Include /private/etc/apache2/users/*.conf
Lastly you would need to create /private/etc/apache2/users/kevin.conf if it doesn't exist. I thin...
What are Aggregates and PODs and how/why are they special?
...er-defined constructor is present, it means that the user needs to do some extra work to initialize the members therefore brace initialization would be incorrect. If virtual functions are present, it means that the objects of this class have (on most implementations) a pointer to the so-called vtabl...
How can I add new keys to a dictionary?
... you want to set multiple values at the same time, as long as the keys are strings (since kwargs are converted to strings). dict.update can also take another dictionary, but I personally prefer not to explicitly create a new dictionary in order to update another one.
– bgusach
...
How to convert DateTime to VarChar
...DECLARE @myDateTime DATETIME
SET @myDateTime = '2008-05-03'
--
-- Convert string
--
SELECT LEFT(CONVERT(VARCHAR, @myDateTime, 120), 10)
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Can we have functions inside functions in C++?
... which can be called just like a function
auto print_message = [](std::string message)
{
std::cout << message << "\n";
};
// Prints "Hello!" 10 times
for(int i = 0; i < 10; i++) {
print_message("Hello!");
}
}
Lambdas can also modify local...
How to display a dynamically allocated array in the Visual Studio debugger?
... in MSDN.
In short, you can display a character array as several types of string. If you've got an array declared as:
char *a = new char[10];
You could print it as a unicode string in the watch window with the following:
a,su
See the tables on the MSDN page for all of the different conversion...
Is 'switch' faster than 'if'?
...ecific questions:
Clang generates one that looks like this:
test_switch(char): # @test_switch(char)
movl %edi, %eax
cmpl $19, %edi
jbe .LBB0_1
retq
.LBB0_1:
jmpq *.LJTI0_0(,%rax,8)
jmp void call<0u>() ...