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mathio.h
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1 
27 #ifndef _MATHIO_H_
28 #define _MATHIO_H_
29 
30 // Define what memory space the function is located in
31 // With ESP8266 we can use this for cached and non-cached code space
32 #ifndef MEMSPACE
33 #define MEMSPACE
34 #endif
35 
36 // With AVR CPU types we can make this a 24bit pointer
37 #ifndef AVR
38 #define __memx
39 #endif
40 
41 // Weak attribute
42 // Allow functions defined here to be overridden by an external ones
43 
44 #ifndef WEAK_ATR
45 #define WEAK_ATR __attribute__((weak))
46 #endif
47 
48 extern int putchar(int c);
49 
50 // =============================================
51 /* mathio.c */
52 MEMSPACE int atodigit ( int c , int radix );
53 MEMSPACE long atoh ( const char *p );
54 MEMSPACE long aton ( char *str , int base );
55 MEMSPACE int mul10str ( uint8_t *str , int size );
56 MEMSPACE long strtol ( const char *nptr , char **endptr , int base );
57 MEMSPACE long long strtoll ( const char *nptr , char **endptr , int base );
58 #ifdef __SIZEOF_INT128__
59 MEMSPACE __uint128_t strto128 ( const char *nptr , char **endptr , int base );
60 #endif
61 MEMSPACE int atoi ( const char *str );
62 MEMSPACE long atol ( const char *str );
63 MEMSPACE double iexp ( double num , int exp );
64 MEMSPACE double scale10 ( double num , int *exp );
65 MEMSPACE double strtod ( const char *nptr , char **endptr );
66 MEMSPACE double atof ( const char *str );
67 
68 // =============================================
69 
70 #undef atof
71 #undef strlen
73 #undef isdigit
74 #undef vnsprintf
75 #undef snprintf
76 
77 // =============================================
78 /* printf.c */
80 typedef struct _printf_t
81 {
82  void (*put)(struct _printf_t *, char);
83  void *buffer;
84  int len;
85  int sent;
86 } printf_t;
87 
89 typedef union
90 {
91  struct
92  {
93  unsigned short width : 1;
94  unsigned short prec : 1;
95  unsigned short plus : 1;
96  unsigned short left : 1;
97  unsigned short space : 1;
98  unsigned short zero : 1;
99  unsigned short neg: 1;
100  unsigned short alt: 1;
101  } b;
102  unsigned short all;
103 } f_t;
104 
105 // =============================================
107 typedef struct
108 {
109  char *str;
110  int ind;
111  int max;
112 } p_ch_t;
113 
114 
115 #define PSTR_X(a) ((__memx const char *) PSTR(a) )
116 
117 
118 /* printf.c */
119 MEMSPACE size_t WEAK_ATR strlen ( const char *str );
120 MEMSPACE int WEAK_ATR isdigit ( int c );
121 MEMSPACE void WEAK_ATR reverse ( char *str );
122 MEMSPACE void WEAK_ATR strupper ( char *str );
123 MEMSPACE int bin2num ( uint8_t *str , int strmax , int nummin , int base , uint8_t *nump , int numsize , int sign_ch );
124 MEMSPACE void pch_init ( p_ch_t *p , char *str , int max );
125 MEMSPACE int pch ( p_ch_t *p , char ch );
126 MEMSPACE int pch_ind ( p_ch_t *p );
127 MEMSPACE int pch_max_ind ( p_ch_t *p );
128 MEMSPACE void print_flags ( f_t f );
129 MEMSPACE int p_ntoa ( uint8_t *nump , int numsize , char *str , int strmax , int radix , int width , int prec , f_t f );
130 MEMSPACE int p_ftoa ( double val , char *str , int max , int width , int prec , f_t f );
131 MEMSPACE int p_etoa ( double val , char *str , int max , int width , int prec , f_t f );
132 MEMSPACE void _puts_pad ( printf_t *fn , char *s , int width , int count , int left );
133 MEMSPACE void _printf_fn ( printf_t *fn , __memx const char *fmt , va_list va );
134 MEMSPACE void _putc_buffer_fn ( struct _printf_t *p , char ch );
135 MEMSPACE int vsnprintf ( char *str , size_t size , const char *format , va_list va );
136 MEMSPACE int snprintf ( char *str , size_t size , const char *format , ...);
137 MEMSPACE int printf ( const char *format , ...);
138 
139 #ifdef AVR
140 MEMSPACE void _puts_pad_X ( printf_t *fn , __memx const char *s , int width , int count , int left );
141 MEMSPACE size_t WEAK_ATR strlen_X ( __memx const char *str );
142 MEMSPACE int vsnprintf_P ( char *str , size_t size , __memx const char *format , va_list va );
143 MEMSPACE int snprintf_P ( char *str , size_t size , __memx const char *format , ...);
144 MEMSPACE int sprintf_P ( char *str , __memx const char *format , ...);
145 MEMSPACE int printf_P ( __memx const char *format , ...);
146 #endif
147 
148 /* sscanf.c */
149 int sscanf ( const char *strp , const char *fmt , ...);
150 #endif // ifndef _MATHIO_H_
_printf_t::buffer
void * buffer
Definition: mathio.h:83
printf
MEMSPACE int printf(const char *format,...)
MEMSPACE
#define MEMSPACE
Definition: mathio.h:33
p_ch_t::max
int max
current string index
Definition: mathio.h:111
p_ntoa
MEMSPACE int p_ntoa(uint8_t *nump, int numsize, char *str, int strmax, int radix, int width, int prec, f_t f)
Convert number an base 2 .. 16 to ASCII with optional sign Notes: 1) Numbers can be any number of dig...
Definition: printf.c:314
pch
MEMSPACE int pch(p_ch_t *p, char ch)
Put character in buffer with limits.
Definition: printf.c:233
strtoll
MEMSPACE long long strtoll(const char *nptr, char **endptr, int base)
Convert ASCII string to number in a given base.
Definition: mathio.c:187
_printf_t::put
void(* put)(struct _printf_t *, char)
Definition: mathio.h:82
snprintf
MEMSPACE int snprintf(char *str, size_t size, const char *format,...)
snprintf function
Definition: printf.c:1250
strtod
MEMSPACE double strtod(const char *nptr, char **endptr)
p_ch_t
Data structure for character buffer with limits.
Definition: mathio.h:107
f_t::width
unsigned short width
Definition: mathio.h:93
putchar
int putchar(int c)
put a character to stdout See fdevopen() sets stream->put get for TTY devices
Definition: posix.c:363
f_t::neg
unsigned short neg
Definition: mathio.h:99
strlen
MEMSPACE size_t WEAK_ATR strlen(const char *str)
String Length.
Definition: stringsup.c:144
aton
MEMSPACE long aton(char *str, int base)
Convert ASCII string to number in a given base.
Definition: mathio.c:94
iexp
MEMSPACE double iexp(double num, int exp)
f_t::space
unsigned short space
Definition: mathio.h:97
p_ftoa
MEMSPACE int p_ftoa(double val, char *str, int max, int width, int prec, f_t f)
p_ch_t::str
char * str
Definition: mathio.h:109
_printf_t
undefine any potential macro version of these functions
Definition: mathio.h:80
atodigit
MEMSPACE int atodigit(int c, int radix)
Convert ASCII character to radix based digit , or -1.
Definition: mathio.c:58
atof
MEMSPACE double atof(const char *str)
WEAK_ATR
#define WEAK_ATR
Definition: mathio.h:45
isdigit
MEMSPACE int WEAK_ATR isdigit(int c)
test if a character is a digit
Definition: stringsup.c:40
_putc_buffer_fn
MEMSPACE void _putc_buffer_fn(struct _printf_t *p, char ch)
_putc_buffer_fn - character output to a string buffer Used by snprintf and vsnprintf You can make _pr...
Definition: printf.c:1187
_printf_t::sent
int sent
Definition: mathio.h:85
f_t::all
unsigned short all
Definition: mathio.h:102
pch_ind
MEMSPACE int pch_ind(p_ch_t *p)
Return current index of character buffer with limits.
Definition: printf.c:247
f_t::alt
unsigned short alt
Definition: mathio.h:100
pch_max_ind
MEMSPACE int pch_max_ind(p_ch_t *p)
Return maximum valid index for character buffer.
Definition: printf.c:256
printf_t
struct _printf_t printf_t
undefine any potential macro version of these functions
pch_init
MEMSPACE void pch_init(p_ch_t *p, char *str, int max)
Initialize character buffer with limits.
Definition: printf.c:218
p_etoa
MEMSPACE int p_etoa(double val, char *str, int max, int width, int prec, f_t f)
atoi
MEMSPACE int atoi(const char *str)
Convert ASCII string to number in base 10.
Definition: mathio.c:284
__memx
#define __memx
Definition: mathio.h:38
p_ch_t::ind
int ind
base of string to write to
Definition: mathio.h:110
atol
MEMSPACE long atol(const char *str)
Convert ASCII string to number in base 10.
Definition: mathio.c:299
f_t::prec
unsigned short prec
Definition: mathio.h:94
sscanf
int sscanf(const char *strp, const char *fmt,...)
mul10str
MEMSPACE int mul10str(uint8_t *str, int size)
Fast multiply number of any size by 10.
Definition: mathio.c:110
f_t::plus
unsigned short plus
Definition: mathio.h:95
f_t::left
unsigned short left
Definition: mathio.h:96
f_t
format specifier flags
Definition: mathio.h:89
_printf_t::len
int len
Definition: mathio.h:84
atoh
MEMSPACE long atoh(const char *p)
Convert ASCII hex string to long integer.
Definition: mathio.c:80
vsnprintf
MEMSPACE int vsnprintf(char *str, size_t size, const char *format, va_list va)
vsnprintf function
Definition: printf.c:1220
strtol
MEMSPACE long strtol(const char *nptr, char **endptr, int base)
Convert ASCII string to number in a given base.
Definition: mathio.c:139
print_flags
MEMSPACE void print_flags(f_t f)
print flags set in t_t structure
Definition: printf.c:269
strupper
MEMSPACE void WEAK_ATR strupper(char *str)
UPPERCASE a string.
Definition: stringsup.c:256
_puts_pad
MEMSPACE void _puts_pad(printf_t *fn, char *s, int width, int count, int left)
put string, via user function, count bytes long, padded up to width, left or right aligned
Definition: printf.c:678
bin2num
MEMSPACE int bin2num(uint8_t *str, int strmax, int nummin, int base, uint8_t *nump, int numsize, int sign_ch)
Convert an unsigned number (numsize bytes in size) to ASCII in specified base Notes: No limit except ...
Definition: printf.c:143
_printf_fn
MEMSPACE void _printf_fn(printf_t *fn, __memx const char *fmt, va_list va)
vsnprintf function
Definition: printf.c:806
scale10
MEMSPACE double scale10(double num, int *exp)
f_t::zero
unsigned short zero
Definition: mathio.h:98
reverse
MEMSPACE void WEAK_ATR reverse(char *str)
Reverse a string in place Example: abcdef -> fedcba.
Definition: stringsup.c:233
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