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How to measure time in milliseconds using ANSI C?
...on many systems.
You can use this function like this:
struct timeval tval_before, tval_after, tval_result;
gettimeofday(&tval_before, NULL);
// Some code you want to time, for example:
sleep(1);
gettimeofday(&tval_after, NULL);
timersub(&tval_after, &tval_before, &tval_resu...
Check if a JavaScript string is a URL
...{1,3}\\.){3}\\d{1,3}))'+ // OR ip (v4) address
'(\\:\\d+)?(\\/[-a-z\\d%_.~+]*)*'+ // port and path
'(\\?[;&a-z\\d%_.~+=-]*)?'+ // query string
'(\\#[-a-z\\d_]*)?$','i'); // fragment locator
return !!pattern.test(str);
}
...
Do I need to explicitly call the base virtual destructor?
...of concept with results:
class base {
public:
base() { cout << __FUNCTION__ << endl; }
~base() { cout << __FUNCTION__ << endl; }
};
class derived : public base {
public:
derived() { cout << __FUNCTION__ << endl; }
~derived() { cout << __FU...
Delete column from SQLite table
...trate how this could be done:
BEGIN TRANSACTION;
CREATE TEMPORARY TABLE t1_backup(a,b);
INSERT INTO t1_backup SELECT a,b FROM t1;
DROP TABLE t1;
CREATE TABLE t1(a,b);
INSERT INTO t1 SELECT a,b FROM t1_backup;
DROP TABLE t1_backup;
COMMIT;
...
Scala type programming resources
...ample (taken from metascala and apocalisp):
sealed trait Nat
sealed trait _0 extends Nat
sealed trait Succ[N <: Nat] extends Nat
Here you have a peano encoding of the natural numbers. That is, you have a type for each non-negative integer: a special type for 0, namely _0; and each integer grea...
How to convert DateTime? to DateTime
...this purpose.
Using it you end up with this code.
DateTime UpdatedTime = _objHotelPackageOrder.UpdatedDate ?? DateTime.Now;
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Format number as fixed width, with leading zeros [duplicate]
...format a number as integer of width 3:
a <- seq(1,101,25)
sprintf("name_%03d", a)
[1] "name_001" "name_026" "name_051" "name_076" "name_101"
Another is formatC and paste:
paste("name", formatC(a, width=3, flag="0"), sep="_")
[1] "name_001" "name_026" "name_051" "name_076" "name_101"
...
How can I disable __vwd/js/artery in VS.NET 2013?
...and now, every time I start to debug an ASP.NET MVC4 app in IIS, some how __vwd/js/artery is created, this script is interfering with my RequireJS setup and it crashes the jQuery reference.
...
vector删除元素erase和通用算法remove区别 - C/C++ - 清泛网 - 专注C/C++及内核技术
...代器来删除单个或者范围的元素
iterator erase(
iterator _Where
);
iterator erase(
iterator _First,
iterator _Last
);
remove函数的定义
template<class _FwdIt, class _Ty> inline
_FwdIt remove(_FwdIt _First, _FwdIt _Last, const _Ty% _Val);
与erase不同的...
error LNK2019: 无法解析的外部符号 _GetFileVersionInfoSizeW@8，该符号在...
error LNK2019: 无法解析的外部符号 _GetFileVersionInfoSizeW@8，该符号在函数 _wmain 中被引用GetFileVersionInfoSize build时出现link2019 链接错误：#pragma comment(lib, "version")解决。GetFileVersionInfoSize build时出现link2019 链接错误：
#pragma comment(lib, "v...