大约有 30,000 项符合查询结果（耗时：0.0285秒） [XML]
How can I use “sizeof” in a preprocessor macro?
... sizeof(someThing) equals PAGE_SIZE; otherwise they will produce a compile-time error.
1. C11 way
Starting with C11 you can use static_assert (requires #include <assert.h>).
Usage:
static_assert(sizeof(someThing) == PAGE_SIZE, "Data structure doesn't match page size");
2. Custom macro
I...
LINQ to SQL: Multiple joins ON multiple Columns. Is this possible?
...
Title_Authors is a look up two things join at a time project results and continue chaining
DataClasses1DataContext db = new DataClasses1DataContext();
var queryresults = from a in db.Authors
joi...
Get week of year in JavaScript like in PHP
...nejan = new Date(now.getFullYear(), 0, 1);
let week = Math.ceil( (((now.getTime() - onejan.getTime()) / 86400000) + onejan.getDay() + 1) / 7 );
share
|
improve this answer
|
...
Mercurial (hg) commit only certain files
... hg commit foo.c foo.h dir/
That just works and that's what I do all the time. You can also use the --include flag that you've found, and you can use it several times like this:
$ hg commit -I foo.c -I "**/*.h"
You can even use a fileset to select the files you want to commit:
$ hg commit "set...
Visual Studio Expand/Collapse keyboard shortcuts [duplicate]
...other comments there, but Ctrl M M is awesome and going to save me so much time!
– Ciaran Martin
Mar 8 '16 at 16:50
2
...
How to validate an email address using a regular expression?
...is its true owner. People sign others up to mailing lists this way all the time. Fixing that requires a fancier kind of validation that involves sending that address a message that includes a confirmation token meant to be entered on the same web page as was the address.
Confirmation tokens are th...
Changing the cursor in WPF sometimes works, sometimes doesn't
...ice, but is not safe if multiple views are updating the cursor at the same time. Easy to get into a race condition where ViewA set's cursor, then ViewB sets a different one, then ViewA tries to reset its cursor (which then pops ViewB's off the stack and leaves ViewA's cursor active). Not until ViewB...
Difference between string and char[] types in C++
... a DLL function to make sure he's using the exact same compiler and C++ runtime implementation, lest he risk his string class behaving differently.
Normally, a string class would also release its heap memory on the calling heap, so it will only be able to free memory again if you're using a shared ...
How to calculate time in hours between two dates in iOS
How can I calculate the time elapsed in hours between two times (possibly occurring on different days) in iOS?
5 Answers
...
Last iteration of enhanced for loop in java
Is there a way to determine if the loop is iterating for the last time. My code looks something like this:
21 Answers
...