大约有 45,000 项符合查询结果(耗时:0.0562秒) [XML]

https://stackoverflow.com/ques... 

Default value of BOOL

...ective-C objects are always set to 0 (or nil) when you allocate an object" and I cannot find any other, clearer, reference, so it's all a bit contradictory to me. – Kristof Van Landschoot Sep 9 '13 at 8:47 ...
https://stackoverflow.com/ques... 

Android Center text on canvas

... And probably best casting _text.Length to a float as it obviously won't work for odd text lengths. – paj7777 Apr 8 '13 at 9:44 ...
https://stackoverflow.com/ques... 

C++ new int[0] — will it allocate memory?

...reference the memory that you get - you can only pass it to array delete - and you should delete it. Here is an interesting foot-note (i.e not a normative part of the standard, but included for expository purposes) attached to the sentence from 3.7.3.1/2 [32. The intent is to have operator new(...
https://stackoverflow.com/ques... 

Is APC compatible with PHP 5.4 or PHP 5.5?

...e the replacement for APC going forward as it is included in the PHP core, and will have to be maintained for each new release. I would personally advise those who depend on APC for it's opcode caching to test their code with the upcoming built-in opcode cache, and feed back any issues encountered t...
https://stackoverflow.com/ques... 

Rails 3: “field-with-errors” wrapper changes the page appearance. How to avoid this?

... One little question: Why both the label and the input are wrapped ? How Rails decide what to wrap ? – Misha Moroshko Mar 11 '11 at 2:03 ...
https://stackoverflow.com/ques... 

How to change field name in Django REST Framework

...serializers.SerializerMethodField: Here is the model Park, which has name and alternate_name fields. class Park(models.Model): name = models.CharField(max_length=256) alternate_name = models.CharField(max_length=256, blank=True) objects = models.GeoManager() class Meta: ...
https://stackoverflow.com/ques... 

How do I obtain crash-data from my Android application?

How can I get crash data (stack traces at least) from my Android application? At least when working on my own device being retrieved by cable, but ideally from any instance of my application running on the wild so that I can improve it and make it more solid. ...
https://stackoverflow.com/ques... 

Regex Named Groups in Java

It is my understanding that the java.regex package does not have support for named groups ( http://www.regular-expressions.info/named.html ) so can anyone point me towards a third-party library that does? ...
https://stackoverflow.com/ques... 

Is floating point math broken?

...is like this. In most programming languages, it is based on the IEEE 754 standard. The crux of the problem is that numbers are represented in this format as a whole number times a power of two; rational numbers (such as 0.1, which is 1/10) whose denominator is not a power of two cannot be exactly re...
https://stackoverflow.com/ques... 

What is JavaScript garbage collection?

...Script garbage collection? What's important for a web programmer to understand about JavaScript garbage collection, in order to write better code? ...