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Can I use if (pointer) instead of if (pointer != NULL)?
Is it safe to check a pointer to not being NULL by writing simply if(pointer) or do I have to use if(pointer != NULL) ?
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Exception thrown in NSOrderedSet generated accessors
On my Lion app, I have this data model:
25 Answers
25
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JavaScript: How do I print a message to the error console?
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edited Aug 20 '12 at 4:59
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What is the easiest/best/most correct way to iterate through the characters of a string in Java?
...ng and use charAt() to get each character to examine it. Since the String is implemented with an array, the charAt() method is a constant time operation.
String s = "...stuff...";
for (int i = 0; i < s.length(); i++){
char c = s.charAt(i);
//Process char
}
That's what I would...
The role of #ifdef and #ifndef
In this what is the role of #ifdef and #ifndef , and what's the output?
4 Answers
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Inputting a default image in case the src attribute of an html is not valid?
Is there any way to render a default image in an HTML <img> tag, in case the src attribute is invalid (using only HTML)? If not, what would be your lightweight way to work around it?
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Ruby on Rails vs ASP.NET MVC 3 for a .NET Guy? [closed]
I am very new to RoR and I want to select between APS.NET MVC3 and RoR. C# is sure easier for me as I have been doing it for so long but I am wondering if there is any point to consider using RoR over .MVC to develop a real world website?
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How to make code wait while calling asynchronous calls like Ajax [duplicate]
I am looking for something like this
4 Answers
4
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Dismissing a Presented View Controller
...heir backs a little here for a potentially kludgy piece of API.
[self dismissViewControllerAnimated:NO completion:nil]
Is actually a bit of a fiddle. Although you can - legitimately - call this on the presented view controller, all it does is forward the message on to the presenting view contr...
Purpose of Unions in C and C++
I have used unions earlier comfortably; today I was alarmed when I read this post and came to know that this code
15 Ans...