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Is sizeof(bool) defined in the C++ language standard?
...r, since 0xbadf00d asked about the standard, not some specific/arbitrarily selected compiler implementation, right?
– Christopher Creutzig
Dec 12 '13 at 22:27
13
...
Why can't I forward-declare a class in a namespace using double colons?
...). Essentially, it must be one of class identifier;, struct identifier; or union identifier; where identifer is the common lexical definition in [lex.name]:
identifier:
identifier-nondigit
identifier identifier-nondigit
identifier digit
identifier-nondigit:
nondigit
universal-character-n...
Why does substring slicing with index out of range work?
... to do when given an out-of-bounds slice. It's analogous to performing the union of two disjoint sets.
– senderle
Feb 28 '12 at 22:49
...
How to concatenate columns in a Postgres SELECT?
... an explicit coercion to text [...]
Bold emphasis mine. The 2nd example (select a||', '||b from foo) works for any data types since the untyped string literal ', ' defaults to type text making the whole expression valid in any case.
For non-string data types, you can "fix" the 1st statement by c...
Is there any connection string parser in C#?
...here(kvp => kvp.Contains('='))
.Select(kvp => kvp.Split(new char[] { '=' }, 2))
.ToDictionary(kvp => kvp[0].Trim(),
kvp => kvp[1].Trim(),
...
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>() ...
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.
...
PHP: Convert any string to UTF-8 without knowing the original character set, or at least try
...ing text on a utf8 page with tinymce, yet for some unknown reason non utf8 characters sometimes ended up in the database. This fixed it, so thank you very much.
– giorgio79
Oct 13 '12 at 14:27
...
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...
Determine version of Entity Framework I am using?
...";
var assemblies = System.AppDomain.CurrentDomain.GetAssemblies().Select(x => x.FullName).ToList();
foreach(var asm in assemblies)
{
var fragments = asm.Split(new char[] { ',', '{', '}' }, StringSplitOptions.RemoveEmptyEntries).Select(x=> x.Trim()).ToList()...