Re: Objective-C boilerplate header (sort of like boost)

[Jamie Ramone]

Why...would anyone want to do that? The whole point of OOP is to hide details so as to allow programmers to concentrate on one thing at a time (while giving us the bonus of modular, reusable, easily maintainable code). Why would you want/need to unhide details?

On Fri, Jun 14, 2013 at 2:59 AM, Maxthon Chan <address@hidden> wrote:

Copied from Xcode and Mail saved all formatting from code highlighting as RTF. The code boilerplate is what I always use as a start point of my code. It makes it possible to expose some Objective-C code as plain C/C++ as I did in CGIKit 5, and it detects compiler. I have a newer version that does easy string constant too.

Sent from my iPhone

On 2013年6月14日, at 13:51, Jamie Ramone <address@hidden> wrote:

Colorful text is colorful! So what is this "boilerplate" thing exactly? I've heard the _expression_ before but not quite sure what it refers to.

On Wed, Jun 12, 2013 at 12:25 PM, Maxthon Chan <address@hidden> wrote:

Do you guys have a boilerplate that you are very used to build code on top of? I have one like this (sans include guard which depend on header file name):

#include <sys/cdefs.h>

#include <stdarg.h>

#include <stdint.h>

#include <stddef.h>

#include <sys/types.h>

// Feature testers

#ifndef __has_feature

#define __has_feature(x) 0

#endif

#ifndef __has_builtin

#define __has_builtin(x) 0

#endif

#ifndef __has_extension

#define __has_extension(x) 0

#endif

#ifndef __has_attribute

#define __has_attribute(x) 0

#endif

// __inline

#if __has_attribute(always_inline)

#define __inline static inline __attribute__((always_inline))

#else // !__has_attribute(always_inline)

#define __inline static inline

#endif// __has_attribute(always_inline)

// __restrict

#ifndef __cplusplus

#ifndef __restrict

#if __STDC_VERSION__ >= 199901L

#define __restrict restrict

#else // __STDC_VERSION__ < 199901L

#define __restrict

#endif // __STDC_VERSION__ >= 199901L

#endif // !defined(__restrict)

#endif // !defined(__cplusplus)

// noreturn (__noreturn and unreachable())

#if __has_attribute(noreturn)

#define __noreturn __attribute__((noreturn))

#if __has_builtin(__builtin_unreachable)

#define unreachable() __builtin_unreachable()

#else // !__has_builtin(__builtin_unreachable)

#define unreachable() do {} while (0)

#endif // __has_builtin(unreachable)

#else // !__has_attribute(noreturn)

#define __noreturn

#define unreachable() do {} while (0)

#endif // __has_attribute(noreturn)

// Deprecated/unavalible with messages

#undef __deprecated

#undef __unavailable

#if __has_attribute(deprecated)

#if __has_extension(attribute_deprecated_with_message)

#define __deprecated(_msg) __attribute__((deprecated(_msg)))

#else // !__has_extension(attribute_deprecated_with_message)

#define __deprecated(_msg) __attribute__((deprecated))

#endif // __has_extension(attribute_deprecated_with_message)

#else // !__has_attribute(deprecated)

#define __deprecated(_msg)

#endif // __has_attribute(deprecated)

#if __has_attribute(unavailable)

#if __has_extension(attribute_unavailable_with_message)

#define __unavailable(_msg) __attribute__((unavailable(_msg)))

#else // !__has_extension(attribute_unavailable_with_message)

#define __unavailable(_msg) __attribute__((unavailable))

#endif // __has_extension(attribute_unavailable_with_message)

#else // !__has_attribute(unavailable)

#define __unavailable(_msg)

#endif // __has_attribute(unavailable)

#if __has_extension(enumerator_attributes)

#define __e_deprecated(_msg) __deprecated(_msg)

#define __e_unavailable(_msg) __unavailable(_msg)

#else // !__has_extension(enumerator_attributes)

#define __e_deprecated(_msg)

#define __e_unavailable(_msg)

#endif // __has_extension(enumerator_attributes)

// Format strings

#if __has_attribute(format)

#define __format(...) __attribute__((format(__VA_ARGS__)))

#else // __has_attribute(format)

#define __format(...)

#endif

// C-safe Objective-C type declaration

#if defined(__OBJC__)

#import <Foundation/Foundation.h>

#define __class @class

#else // !defined(__OBJC__)

#include <objc/runtime.h>

#define __class typedef struct objc_object

#endif // defined(__OBJC__)

// Objective-C instancetype

#if defined(__OBJC__)

#if !__has_feature(objc_instancetype)

typedef id instancetype

#endif // !__has_feature(objc_instancetype)

#endif // defined(__OBJC__)

// Enumerations

#define __enum(_name, _type) enum _name : _type; enum _name

// Some convenience Objective-C functions and macros

__class NSString;

#define NSStringConstant(_name, _value) extern NSString *const _name;

#if defined(__OBJC__)

__BEGIN_DECLS

__inline __format(NSString, 1, 0) NSString *NSSTRv(NSString *format, va_list args)

{

    NSString *string = [[NSString alloc] initWithFormat:format

                                              arguments:args];

#if !__has_feature(objc_arc) && !__has_feature(objc_gc)

    [string autorelease];

#endif

    return string;

}

__inline __format(NSString, 1, 2) NSString *NSSTR(NSString *format, ...)

{

    va_list args;

    va_start(args, format);

    NSString *string = NSSTRv(format, args);

    va_end(args);

    return string;

}

__END_DECLS

#endif // defined(__OBJC__)

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--
Besos, abrazos, confeti y aplausos.
Jamie Ramone
"El Vikingo"

--
Besos, abrazos, confeti y aplausos.
Jamie Ramone
"El Vikingo"