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Block Declaration Syntax List
... I presume) is notoriously incongruous. Passing blocks as arguments looks different than declaring blocks as ivars, which looks different than typedef ing blocks.
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How to concatenate two strings to build a complete path
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Except if $part1 can be empty string.
– Tuure Laurinolli
Jan 2 '17 at 14:36
1
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Increment a database field by 1
With MySQL, if I have a field, of say logins, how would I go about updating that field by 1 within a sql command?
5 Answers...
Regular expression matching a multiline block of text
...efeed (\n), a carriage-return (\r), or a carriage-return+linefeed (\r\n). If you aren't certain that your target text uses only linefeeds, you should use this more inclusive version of the regex:
re.compile(r"^(.+)(?:\n|\r\n?)((?:(?:\n|\r\n?).+)+)", re.MULTILINE)
BTW, you don't want to use the D...
Simple Getter/Setter comments
...ake of silencing overly pedantic warning from our tools feels wrong to me. If it doesn't add value to a programmer, then the right solution would be to turn down/fix the verbosity of the tools and/or ease up on how much we care about jumping through hoops so that the tools reward us. Analysis tools...
How do I create an immutable Class?
...hould be supplied in the constructor
all properties should be getters only
if a collection (or Array) is passed into the constructor, it should be copied to keep the caller from modifying it later
if you're going to return your collection, either return a copy or a read-only version (for example, us...
How do I copy folder with files to another folder in Unix/Linux? [closed]
...on you're looking for is -R.
cp -R path_to_source path_to_destination/
If destination doesn't exist, it will be created.
-R means copy directories recursively. You can also use -r since it's case-insensitive.
Note the nuances with adding the trailing / as per @muni764's comment.
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How to get the error message from the error code returned by GetLastError()?
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//Returns the last Win32 error, in string format. Returns an empty string if there is no error.
std::string GetLastErrorAsString()
{
//Get the error message, if any.
DWORD errorMessageID = ::GetLastError();
if(errorMessageID == 0)
return std::string(); //No error message has bee...
Unicode与UTF-8互转(C语言实现) - C/C++ - 清泛网 - 专注C/C++及内核技术
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{
assert(pOutput != NULL);
assert(outSize >= 6);
if ( unic <= 0x0000007F )
{
// * U-00000000 - U-0000007F: 0xxxxxxx
*pOutput = (unic & 0x7F);
return 1;
}
else if ( unic >= 0x00000080 && unic <= 0x000007FF )
{...
Parse a URI String into Name-Value Collection
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If you are looking for a way to achieve it without using an external library, the following code will help you.
public static Map<String, String> splitQuery(URL url) throws UnsupportedEncodingException {
Map<Stri...