大约有 16,000 项符合查询结果（耗时：0.0284秒） [XML]
Determining 32 vs 64 bit in C++
I'm looking for a way to reliably determine whether C++ code is being compiled in 32 vs 64 bit. We've come up with what we think is a reasonable solution using macros, but was curious to know if people could think of cases where this might fail or if there is a better way to do this. Please note we ...
Php multiple delimiters in explode
...y. It possible to return associative? For example $str='/x/1/2/3/4/5/y/100/200/z/777'; preg_split("/(x|y|z|)/", $str); and to see array('x'=>'1/2/3/4/5', 'y'=>'100/200', 'z'=>'777')
– LINKeRxUA
Oct 2 '15 at 15:00
...
What does “dereferencing” a pointer mean?
...rested in the pointed-to object's (current) value - I focus below on C and C++.
A pointer scenario
Consider in C, given a pointer such as p below...
const char* p = "abc";
...four bytes with the numerical values used to encode the letters 'a', 'b', 'c', and a 0 byte to denote the end of the tex...
Handle file download from ajax post
...seType = 'arraybuffer';
xhr.onload = function () {
if (this.status === 200) {
var filename = "";
var disposition = xhr.getResponseHeader('Content-Disposition');
if (disposition && disposition.indexOf('attachment') !== -1) {
var filenameRegex = /filenam...
Use String.split() with multiple delimiters
...
do you know how to escape the brackets? I have String "[200] Engineering" that I want to split into "200" , "Engineering"
– scottysseus
Jul 30 '13 at 21:03
...
C++: Rounding up to the nearest multiple of a number
...s? What about negative numbers? The behaviour seems to be undefined in pre-C++11.
– cubuspl42
Aug 18 '15 at 16:28
...
Checking if a folder exists (and creating folders) in Qt, C++
...
Not the answer you're looking for? Browse other questions tagged c++ qt filesystems or ask your own question.
Why sizeof int is wrong, while sizeof(int) is right?
...ty of sizeof (int *) + 1. It is (sizeof(int*))+1, not sizeof((int*)(+1)).
C++ has a somewhat similar issue to resolve with function-style cast syntax. You can write int(0) and you can write typedef int *intptr; intptr(0);, but you can't write int*(0). In that case, the resolution is that the "naked...
How to concatenate two strings in C++?
...
Since it's C++ why not to use std::string instead of char*?
Concatenation will be trivial:
std::string str = "abc";
str += "another";
share
|
...
How to insert a value that contains an apostrophe (single quote)?
...ustrates this functionality.
declare @person TABLE (
[First] nvarchar(200),
[Last] nvarchar(200)
)
insert into @person
(First, Last)
values
('Joe', 'O''Brien')
select * from @person
Results
First | Last
===================
Joe | O'Brien
...