大约有 40,000 项符合查询结果（耗时：0.0717秒） [XML]
Initializing a struct to 0
...cal variable or a heap-allocated zone, clear it with memset like:
memset(&m, 0, sizeof(myStruct));
Current compilers (e.g. recent versions of gcc) optimize that quite well in practice. This works only if all zero values (include null pointers and floating point zero) are represented as all ze...
How big can a user agent string get?
...ind the fastest hash algorithm that didn't produce any collisions. For my PHP environment I found md5 performed quickly at 2.3 seconds with no collisions. Interestingly I tried crc32 and crc32b and they also performed at 2.3 seconds with no collisions. But, because md5 has more combinations than c...
Can you use a trailing comma in a JSON object?
...
PHP coders may want to check out implode(). This takes an array joins it up using a string.
From the docs...
$array = array('lastname', 'email', 'phone');
echo implode(",", $array); // lastname,email,phone
...
SFTP in Python? (platform independent)
I'm working on a simple tool that transfers files to a hard-coded location with the password also hard-coded. I'm a python novice, but thanks to ftplib, it was easy:
...
Print function log /stack trace for entire program using firebug
... isCallstackPopulated = true;
}
else if (window.opera && e.message) { //Opera
var lines = e.message.split('\n');
for (var i = 0, len = lines.length; i < len; i++) {
if (lines[i].match(/^\s*[A-Za-z0-9\-_\$]+\(/)) {
...
What is the shortcut in IntelliJ IDEA to find method / functions?
...
While this answer is technically correct, it's what I've been trying to avoid since I don't want to search multiple files which might have the same method name. the Ctrl+F12 method below with like 3x as many upvotes is what should be marked as the corre...
How to detect orientation change?
...e camera with AVFoundation, and found that the didRotate (now deprecated) & willTransition methods were unreliable for my needs. Using the notification posted by David did work, but is not current for Swift 3.x/4.x.
Swift 4.2
The notification name has been changed.
The closure value remains th...
Is C++14 adding new keywords to C++?
...new keywords to the language, yet with C++11 that was not the case. Some examples:
3 Answers
...
How can I change the file type association of an existing file in WebStorm?
...
I've had this problem in php storm 8.0.3 on OSX.
I was struggling with a single file that had been added as a text file, but I'd typed in the .js extension.
I tried deleting and recreating, renaming and renaming back, deleting .idea altogether. Not...
What is the difference between & and && in Java?
I always thought that && operator in Java is used for verifying whether both its boolean operands are true , and the & operator is used to do Bit-wise operations on two integer types.
...