大约有 30,000 项符合查询结果（耗时：0.0223秒） [XML]
What uses are there for “placement new”?
... on a
pre-allocated buffer takes less time):
char *buf = new char[sizeof(string)]; // pre-allocated buffer
string *p = new (buf) string("hi"); // placement new
string *q = new string("hi"); // ordinary heap allocation
You may also want to be sure there can be no allocation failure at ...
What are the differences between the BLOB and TEXT datatypes in MySQL?
...s.
BLOB is used for storing binary data while Text is used to store large string.
BLOB values are treated as binary strings (byte strings). They have no character set, and sorting and comparison are based on the numeric values of the bytes in column values.
TEXT values are treated as nonbinary st...
Javascript and regex: split string and keep the separator
I have a string:
7 Answers
7
...
What should I do if two libraries provide a function with the same name generating a conflict?
...ding libraries in a hex editor and change all occurrences of the offending strings to something else. You should then be able to use the new names in all future calls.
UPDATE: I just did it on this end and it seems to work. Of course, I've not tested this thoroughly - it may be no more than a re...
UnicodeDecodeError, invalid continuation byte
...t’s just the mechanical cause of the exception. In this case, you have a string that is almost certainly encoded in latin 1. You can see how UTF-8 and latin 1 look different:
>>> u'\xe9'.encode('utf-8')
b'\xc3\xa9'
>>> u'\xe9'.encode('latin-1')
b'\xe9'
(Note, I'm using a mix o...
How to use dashes in HTML-5 data-* attributes in ASP.NET MVC
...keyword = Model.Keyword, page = Model.currPage - 1},
new Dictionary<string,Object> { {"class","prev"}, {"data-details","yada"} } )%>
// 2: pass custom type decorated with descriptor attributes
public class CustomArgs
{
public CustomArgs( string className, string dataDetails ) { ......
Check if a string contains another string
I want to find if a string contains a ","(comma) in it. Do we have any other option other than reading char-by-char?
4 Answ...
android pick images from gallery
...& null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int colu...
C/C++ NaN constant (literal)?
...
What are the differences between outputs for different strings? Which one should we use in typical numerical code?
– quant_dev
Jul 26 at 19:55
...
Clearing purchases from iOS in-app purchase sandbox for a test user
... accounts associated to one email. Gmail for example lets you add a "plus" string to the email to create aliases for an address: so tester+01@gmail.com and tester+02@gmail.com both really just go to tester@gmail.com. Probably other email hosts do the same. When you create a test account you need to ...