stdio.c
2.06 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
// CCT compiler
#ifdef __CCT__
extern int putc(char c);
#define neg(i) -i
#define UINT(i) i
#define _DIGITS "0123456789ABCDEF"
#define _STR "65536"
// regular compiler
#else
extern int putchar(int c);
#define putc(c) putchar(c)
#define neg(i) ~i + 1
#define UINT(i) (unsigned int)(i)
#define _DIGITS _digits
char _digits[17] = "0123456789ABCDEF";
#define _STR _str
char _str[6] = "65536";
#endif
int puts(char *s) {
int n;
int i;
n = 0;
i = 0;
while (1) {
if (s[i]) {
n += putc(s[i]);
i += 1;
} else {
break;
}
}
return n;
}
#define ICHAR 105
#define SCHAR 115
#define UCHAR 117
#define XCHAR 120
#define ZEROCHAR 48
#define PERCENT 37
#define MINUS 45
int putu(int u, char f) {
char *DIGITS;
char *str;
int div;
int r;
int n;
int p;
if (u == 0) {
n = putc(ZEROCHAR);
} else {
DIGITS = _DIGITS;
str = _STR;
n = 0;
p = 0;
if (f == XCHAR) {
div = 16;
} else {
div = 10;
}
while (u) {
r = u % div;
str[p] = DIGITS[r];
p += 1;
u = u / div;
}
p -= 1;
while (p >= 0) {
n += putc(str[p]);
p -= 1;
}
}
return n;
}
int puti(int i) {
int n;
if (UINT(i) > 32767) {
n = putc(MINUS);
n += putu(neg(i), UCHAR);
} else {
n = putu(i, UCHAR);
}
return n;
}
int printf(char *str, ...) {
int n;
int i;
int a;
int *iargs;
char **cargs;
iargs = &str;
cargs = &str;
a = 1;
n = 0;
i = 0;
while (1) {
if (str[i] == 0) {
break;
} else if (str[i] == PERCENT) {
i += 1;
if (str[i] == ICHAR) {
n += puti(iargs[a]);
} else if (str[i] == UCHAR) {
n += putu(iargs[a], UCHAR);
} else if (str[i] == SCHAR) {
n += puts(cargs[a]);
} else if (str[i] == XCHAR) {
n += putu(iargs[a], XCHAR);
} else if (str[i] == PERCENT) {
n += putc(PERCENT);
i += 1;
continue;
} else {
n += putc(PERCENT);
n += putc(str[i]);
}
a += 1;
} else {
n += putc(str[i]);
}
i += 1;
}
return n;
}