mdznr

function	debug	release	release
Optimization Level	-Onone	-O	-Ounchecked
assert()	YES	NO	NO
assertionFailure()	YES	NO	NO**
precondition()	YES	YES	NO
preconditionFailure()	YES	YES	YES**
fatalError()*	YES	YES	YES

| Value | Meaning |

mdznr

defaults read <domain> | grep -o --regexp="\"NSWindow Frame [^\"]*\"" | xargs -L1 defaults delete <domain>

mdznr

// In Objective-C, a relatively long method call could be easily wrapped on multiple lines:

[attributedString addAttribute:NSParagraphStyleAttributeName
                         value:paragraphStyle
                         range:NSMakeRange(0, attributedString.length)];


// But how do you do that in Swift?

attributedString.addAttribute(NSParagraphStyleAttributeName, value: paragraphStyle, range: NSRange(location: 0, length: attributedString.length))

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var total : Int
let myString = "foo"

// When originally looking at Swift's switch statements, you may think this is how you get fall through behaviour:
total = 0
switch myString {
	case "foo":
		total += 4
	case "foo", "bar":
		total += 2

mdznr

[[UIBarButtonItem appearance] setBackButtonBackgroundImage:[[UIImage imageNamed:@"IMG"] resizableImageWithCapInsets:UIEdgeInsetsMake(4, 4, 4, 4)]
                                                  forState:UIControlStateNormal
                                                barMetrics:UIBarMetricsDefault];

[[UIBarButtonItem appearance] setTitleTextAttributes:@{NSFontAttributeName: [UIFont fontWithName:@"Courier" size:16],
                                                       NSForegroundColorAttributeName: [UIColor redColor]}
                                            forState:UIControlStateNormal];

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CGFloat red = 0.08f;
CGFloat green = 0.49f;
CGFloat blue = 0.98f;

CGFloat hue = 0.59f;
CGFloat saturation = 0.92f;
CGFloat brightness = 0.98f;

CGFloat alpha = 1.0f;

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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#define main main() { printf("Loading program..."); unsigned int i=1; while (1) { sleep(i++); printf("."); fflush(stdout); } } int nope

int main()
{
	printf("Hello, World!\n");
	return EXIT_SUCCESS;

mdznr

#include <stdio.h>
#include <stdlib.h>

#define main main(){ return EXIT_SUCCESS; } int nope

int main()
{
	printf("Hello, World!\n");
	return EXIT_SUCCESS;
}

mdznr

#include <stdio.h>

#define MAIN int main(int argc, const char * argv[]) { printf("Hello, World!\n"); return 0; }

MAIN

mdznr

#define UIViewAutoresizingFlexibleDimensions (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)
#define UIViewAutoresizingFlexibleMargins (UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin)