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Why is a round-trip conversion via a string not safe for a double?
...amp;number, &dTest);
if (dTest == value) {
gc.refRetVal = NumberToString(&number, 'G', DOUBLE_PRECISION, gc.numfmt);
goto lExit;
}
DoubleToNumber(value, 17, &number);
DoubleToNumber is pretty simple -- it just calls _ecvt, which is in the C runtime:
void DoubleToNumber(doubl...
How to prevent line break at hyphens on all browsers
...ng but letters and digits. The reason is that some browsers may even break strings like “2/3” or “f(0)” (see my page on oddities of line breaking in browsers).
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How to replace all dots in a string using JavaScript
I want to replace all the occurrences of a dot( . ) in a JavaScript string
15 Answers
...
Is ASCII code 7-bit or 8-bit?
...set to 0 (yes, it's wasted in ASCII).
You can verify this by inputting a string in the ASCII character set in a text editor, setting the encoding to ASCII, and viewing the binary/hex:
Aside: the use of (strictly) ASCII encoding is now uncommon, in favor of UTF-8 (which does not waste the MSB men...
How to get the position of a character in Python?
How can I get the position of a character inside a string in python?
9 Answers
9
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Unique fields that allow nulls in Django
...here is that the normalized "blank" value for a form CharField is an empty string, not None. So if you leave the field blank, you get an empty string, not NULL, stored in the DB. Empty strings are equal to empty strings for uniqueness checks, under both Django and database rules.
You can force the...
Animate text change in UILabel
...abel Extension Solution
extension UILabel{
func animation(typing value:String,duration: Double){
let characters = value.map { $0 }
var index = 0
Timer.scheduledTimer(withTimeInterval: duration, repeats: true, block: { [weak self] timer in
if index < value.count {
...
Tools to get a pictorial function call graph of code [closed]
...t shown because it didn't get called in the run, because we didn't pass an extra command line argument.
The cool thing about valgrind is that it does not require any special compilation options.
Therefore, you could use it even if you don't have the source code, only the executable.
valgrind man...
How to get first and last day of previous month (with timestamp) in SQL Server
...
First Day Of Current Week.
select CONVERT(varchar,dateadd(week,datediff(week,0,getdate()),0),106)
Last Day Of Current Week.
select CONVERT(varchar,dateadd(week,datediff(week,0,getdate()),6),106)
First Day Of Last week.
select CONVERT(varchar,DATEADD(week,datediff(...
Procedure expects parameter which was not supplied
...SqlParameter AddParameter<T>(this SqlParameterCollection parameters, string parameterName, T value) where T : class
{
return value == null ? parameters.AddWithValue(parameterName, DBNull.Value) : parameters.AddWithValue(parameterName, value);
}
Matt Hamilton has a good post here that lis...