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Coding Guidelines for Cocoa

Tips and Techniques for Framework Developers

http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/CodingGuidelines/Articles/FrameworkImpl.html#//apple_ref/doc/uid/20001286-BAJIBFHD

Object Sizes and Reserved Fields

Each Objective-C object has a size that can be determined by the total size of its own instance variables plus the instance variables of all superclasses. You cannot change the size of a class without requiring the recompilation of subclasses that also have instance variables. To maintain binary compatibility, you usually cannot change object sizes by introducing new instance variables into your classes or getting rid of unneeded ones.

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- ( void )actionSheet: ( UIActionSheet * )actionSheet clickedButtonAtIndex: ( NSInteger )buttonIndex
{
    NSLog( @"%i", buttonIndex );
    if( buttonIndex == 0 )
    {
        SettingsView * settings = [ [ SettingsView alloc ] initWithNibName: @"SettingsView" bundle: nil ];
        NSLog( @"%@", settings );
        NSLog( @"%@", self.navigationController );
        [ self.navigationController pushViewController: settings animated: YES ];
        [ settings release ];

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int * x;
int * y;
int   z;

x = ( int * )calloc( 10, sizeof( int ) );
y = &( x[ 5 ] );

x = ( int * )realloc( x, 20 * sizeof( int ) );

z = *( y );

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‎-Wall
-Wbad-function-cast
-Wcast-align
-Wconversion
-Wdeclaration-after-statement
-Wdeprecated-implementations
-Wextra
-Wfloat-equal
-Wformat=2
-Wformat-nonliteral

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#include <stdio.h>

#define XSTR(s) STR(s)
#define  STR(s) #s

int main( void )
{
    printf
    (
        "\n"

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BITS 16

before_big_bang:

cli

mov ax, 0x07C0
mov ds, ax
mov es, ax