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PHP: Convert any string to UTF-8 without knowing the original character set, or at least try
...t mb_detect_encoding source code in your php distro (somewhere here: ext/mbstring/libmbfl/mbfl/mbfl_ident.c). This function does not work properly at all. For some encodings it even has "return true", lol. Others are in Ctrl+c Ctrl+v functions. That's because you can not detect encoding without some...
How can I convert String to Int?
...lse, but for noobish people what 'out x' does is set the value of x to the string-cast-as-integer, if the casting is successful. I.e. in this case, x = 0 if the string has any non-integer characters, or x = value of string-as-integer otherwise. So the neat thing is this is one short expression which...
How to extract the first two characters of a string in shell scripting?
...sh shell (and you appear to be, based on your comments), is to use the sub-string variant of parameter expansion:
pax> long="USCAGol.blah.blah.blah"
pax> short="${long:0:2}" ; echo "${short}"
US
This will set short to be the first two characters of long. If long is shorter than two characte...
How to insert a character in a string at a certain position?
I'm getting in an int with a 6 digit value. I want to display it as a String with a decimal point (.) at 2 digits from the end of int . I wanted to use a float but was suggested to use String for a better display output (instead of 1234.5 will be 1234.50 ). Therefore, I need a function t...
Format output string, right alignment
...iliar with one of them, the new format seems easier to read. ".format" for string formatting certainly seems more intuitive than percentage/modulo. Right arrow for right alignment seems pretty intuitive too.
– Mark
May 28 '17 at 10:54
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Windows下 C++网络延时检测 - C/C++ - 清泛网 - 专注C/C++及内核技术
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#define PING_TIMES 2 //ping 4 次
typedef struct _IPINFO
{
unsigned char Ttl; // Time To Live
unsigned char Tos; // Type Of Service
unsigned char IPFlags; // IP flags
unsigned char OptSize; // Size of options data
unsigned char FAR *Options; // Options data buffer
}IPINFO;...
How can I reliably get an object's address when operator& is overloaded?
...long ) {
return reinterpret_cast<T*>(
&const_cast<char&>(reinterpret_cast<const volatile char &>(v)));
}
static inline T * f( T * v, int ) { return v; }
};
template<class T>
T * addressof( T & v ) {
return addressof_impl<T>::f( addr_i...
Split large string in n-size chunks in JavaScript
I would like to split a very large string (let's say, 10,000 characters) into N-size chunks.
22 Answers
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How can you zip or unzip from the script using ONLY Windows' built-in capabilities?
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It was possible back in 2013 (without installing any extra software). See the Super User question. It has been possible since Windows XP came out in 2001. The built-in ZIP functionality in Windows XP can be leveraged because it is exposed through a COM interface.
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How do you count the number of occurrences of a certain substring in a SQL varchar?
... comes to mind is to do it indirectly by replacing the comma with an empty string and comparing the lengths
Declare @string varchar(1000)
Set @string = 'a,b,c,d'
select len(@string) - len(replace(@string, ',', ''))
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