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xprintf.h
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xprintf.h
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/*---------------------------------------------------------------------------
Extended itoa, puts and printf (C)ChaN, 2011
-----------------------------------------------------------------------------*/
#ifndef XPRINTF_H
#define XPRINTF_H
#include <inttypes.h>
#include <avr/pgmspace.h>
#ifdef __cplusplus
extern "C" {
#endif
extern void (*xfunc_out)(uint8_t);
#define xdev_out(func) xfunc_out = (void(*)(uint8_t))(func)
/* This is a pointer to user defined output function. It must be initialized
before using this modle.
*/
void xputc(char chr);
/* This is a stub function to forward outputs to user defined output function.
All outputs from this module are output via this function.
*/
/*-----------------------------------------------------------------------------*/
void xputs(const char *string_p);
/* The string placed in the ROM is forwarded to xputc() directly.
*/
/*-----------------------------------------------------------------------------*/
void xitoa(long value, char radix, char width);
/* Extended itoa().
value radix width output
100 10 6 " 100"
100 10 -6 "000100"
100 10 0 "100"
4294967295 10 0 "4294967295"
4294967295 -10 0 "-1"
655360 16 -8 "000A0000"
1024 16 0 "400"
0x55 2 -8 "01010101"
*/
/*-----------------------------------------------------------------------------*/
#define xprintf(format, ...) __xprintf(PSTR(format), ##__VA_ARGS__)
#define xsprintf(str, format, ...) __xsprintf(str, PSTR(format), ##__VA_ARGS__)
#define xfprintf(func, format, ...) __xfprintf(func, PSTR(format), ##__VA_ARGS__)
void __xprintf(const char *format_p, ...); /* Send formatted string to the registered device */
void __xsprintf(char*, const char *format_p, ...); /* Put formatted string to the memory */
void __xfprintf(void(*func)(uint8_t), const char *format_p, ...); /* Send formatted string to the specified device */
/* Format string is placed in the ROM. The format flags is similar to printf().
%[flag][width][size]type
flag
A '0' means filled with '0' when output is shorter than width.
' ' is used in default. This is effective only numeral type.
width
Minimum width in decimal number. This is effective only numeral type.
Default width is zero.
size
A 'l' means the argument is long(32bit). Default is short(16bit).
This is effective only numeral type.
type
'c' : Character, argument is the value
's' : String placed on the RAM, argument is the pointer
'S' : String placed on the ROM, argument is the pointer
'd' : Signed decimal, argument is the value
'u' : Unsigned decimal, argument is the value
'X' : Hexdecimal, argument is the value
'b' : Binary, argument is the value
'%' : '%'
*/
/*-----------------------------------------------------------------------------*/
char xatoi(char **str, long *ret);
/* Get value of the numeral string.
str
Pointer to pointer to source string
"0b11001010" binary
"0377" octal
"0xff800" hexdecimal
"1250000" decimal
"-25000" decimal
ret
Pointer to return value
*/
#ifdef __cplusplus
}
#endif
#endif