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 <xcvi...@me.com> 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"
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