78 lines
1.6 KiB
C
78 lines
1.6 KiB
C
#ifndef __LIB_STDIO_H__
|
|
# define __LIB_STDIO_H__
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
#include <stdarg.h>
|
|
|
|
/* *printf() familly - formatted output conversion. */
|
|
extern int printf(const char *restrict format, ...);
|
|
extern int sprintf(char *restrict str, const char *restrict format, ...);
|
|
extern int snprintf(char *restrict str, size_t size, const char *restrict format, ...);
|
|
|
|
extern int vdprintf(int fd, const char *restrict format, va_list ap);
|
|
extern int vsprintf(char *restrict str, const char *restrict format, va_list ap);
|
|
extern int vsnprintf(char *restrict str, size_t size, const char *restrict format, va_list ap);
|
|
|
|
/* putx() - display char / string */
|
|
extern int putchar(int c);
|
|
extern int puts(const char *s);
|
|
|
|
|
|
|
|
|
|
//---
|
|
// Internal part
|
|
// TODO: move me ?
|
|
//---
|
|
#define PRINTF_INTERNAL_BUFFER_SIZE 32
|
|
|
|
struct printf_opt
|
|
{
|
|
// Internal buffer to avoid syscall flux
|
|
char buffer[PRINTF_INTERNAL_BUFFER_SIZE];
|
|
size_t buffer_cursor;
|
|
|
|
// Common part
|
|
int counter;
|
|
va_list ap;
|
|
|
|
// *dprintf part
|
|
int fd;
|
|
|
|
// *sprintf part
|
|
char *str;
|
|
size_t str_size;
|
|
|
|
// For string / fd common support
|
|
void (*disp_char)(struct printf_opt *opt, char n);
|
|
void (*disp_fflush)(struct printf_opt *opt);
|
|
|
|
// Printf-options
|
|
struct {
|
|
uint8_t diez : 1;
|
|
uint8_t zero : 1;
|
|
uint8_t minus : 1;
|
|
uint8_t space : 1;
|
|
uint8_t plus : 1;
|
|
uint8_t const : 3;
|
|
} flags;
|
|
int width;
|
|
int precision;
|
|
int uppercase;
|
|
int lenght;
|
|
|
|
// Internal format management.
|
|
char sign;
|
|
char base[2];
|
|
char format[32];
|
|
int digits;
|
|
};
|
|
|
|
// Internal symbols used to define all actions possibility
|
|
extern void (*action[26])(struct printf_opt *opt, char n);
|
|
|
|
|
|
|
|
#endif /*__LIB_STDIO_H__*/
|