stdio.h

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#ifndef _STDIO_H_
#define _STDIO_H_
 
#include "stdarg.h"
#include "stddef.h"
 
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
 
#define __ungetc_buffer_size 2
 
typedef unsigned long __file_handle;
typedef unsigned long fpos_t;
 
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wtypedef-redefinition"
typedef unsigned short wchar_t;
#pragma clang diagnostic pop
 
enum __io_modes {
    __read = 1,
    __write = 2,
    __read_write = 3,
    __append = 4,
};
enum __file_kinds {
    __closed_file,
    __disk_file,
    __console_file,
    __unavailable_file,
};
enum __file_orientation {
    __unoriented,
    __char_oriented,
    __wide_oriented,
};
 
enum __io_results {
    __no_io_error,
    __io_error,
    __io_EOF,
};
 
typedef struct {
    unsigned int open_mode : 2;
    unsigned int io_mode : 3;
    unsigned int buffer_mode : 2;
    unsigned int file_kind : 3;
    unsigned int file_orientation : 2;
    unsigned int binary_io : 1;
} __file_modes;
 
enum __io_states {
    __neutral,
    __writing,
    __reading,
    __rereading,
};
 
typedef struct {
    unsigned int io_state : 3;
    unsigned int free_buffer : 1;
    unsigned char eof;
    unsigned char error;
} __file_state;
 
typedef void (*__idle_proc)(void);
typedef int (*__pos_proc)(__file_handle file, fpos_t* position, int mode,
                          __idle_proc idle_proc);
typedef int (*__io_proc)(__file_handle file, unsigned char* buff,
                         size_t* count, __idle_proc idle_proc);
typedef int (*__close_proc)(__file_handle file);
 
typedef struct _IO_FILE {
    __file_handle handle;
    __file_modes mode;
    __file_state state;
    unsigned char char_buffer;
    unsigned char char_buffer_overflow;
    unsigned char ungetc_buffer[__ungetc_buffer_size];
    wchar_t ungetwc_buffer[__ungetc_buffer_size];
    unsigned long position;
    unsigned char* buffer;
    unsigned long buffer_size;
    unsigned char* buffer_ptr;
    unsigned long buffer_len;
    unsigned long buffer_alignment;
    unsigned long saved_buffer_len;
    unsigned long buffer_pos;
    __pos_proc position_proc;
    __io_proc read_proc;
    __io_proc write_proc;
    __close_proc close_proc;
    __idle_proc idle_proc;
} FILE;
 
typedef struct {
    char* CharStr;
    size_t MaxCharCount;
    size_t CharsWritten;
} __OutStrCtrl;
 
typedef struct {
    char* NextChar;
    int NullCharDetected;
} __InStrCtrl;
 
#define EOF -1L
 
enum __ReadProcActions {
    __GetAChar,
    __UngetAChar,
    __TestForError,
};
 
int __StringRead(void* str, int ch, int behavior);
 
#define _IONBF 0
#define _IOLBF 1
#define _IOFBF 2
 
extern FILE __files[3];
 
#define stdin (&__files[0])
#define stdout (&__files[1])
#define stderr (&__files[2])
 
int sprintf(char* s, const char* format, ...);
int vprintf(const char* format, va_list arg);
int vsprintf(char* s, const char* format, va_list arg);
 
size_t fwrite(const void*, size_t memb_size, size_t num_memb, FILE*);
 
#endif // _STDIO