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Convert from enum ordinal to enum type
...the database. Furthermore, it's better to use int manipulation rather than String...
– user660940
Mar 15 '11 at 16:06
...
How can I concatenate regex literals in JavaScript?
...out using the regular expression literal syntax. This lets you do arbitary string manipulation before it becomes a regular expression object:
var segment_part = "some bit of the regexp";
var pattern = new RegExp("some regex segment" + /*comment here */
segment_part + /* that was defin...
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>() ...
LINQ: “contains” and a Lambda query
... open,
closed,
weird,
};
public string Name { get; set; }
public StatusType Status { get; set; }
}
public static List <Building> buildingList = new List<Building> ()
{
new Building () { Name = "one", Status = Buildin...
What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
...integral types):
There are five standard signed integer types : signed char, short int, int, long int, and long long int. In this list, each type provides at least as much storage as those preceding it in the list.
There's also a table 9 in 7.1.6.2 Simple type specifiers, which shows the "mapp...
What is the difference between Ruby 1.8 and Ruby 1.9
...ements do not introduce scope in Ruby.
What's changed?
Single character strings.
Ruby 1.9
irb(main):001:0> ?c
=> "c"
Ruby 1.8.6
irb(main):001:0> ?c
=> 99
String index.
Ruby 1.9
irb(main):001:0> "cat"[1]
=> "a"
Ruby 1.8.6
irb(main):001:0> "cat"[1]
=> 97
{"...
Set breakpoint in C or C++ code programmatically for gdb on Linux
...
By looking here, I found the following way:
void main(int argc, char** argv)
{
asm("int $3");
int a = 3;
a++; // In gdb> print a; expect result to be 3
}
This seems a touch hackish to me. And I think this only works on x86 architecture.
...
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
...
What is the proper declaration of main?
...lly named argc and argv, respectively. argv is a pointer to an array of C strings representing the arguments to the program. argc is the number of arguments in the argv array.
Usually, argv[0] contains the name of the program, but this is not always the case. argv[argc] is guaranteed to be a nu...
What to do with “Unexpected indent” in python?
... statement). All lines of code in a block must start with exactly the same string of whitespace. For instance:
>>> def a():
... print "foo"
... print "bar"
IndentationError: unexpected indent
This one is especially common when running python interactively: make sure you don't put a...