summaryrefslogtreecommitdiff
path: root/klibc/klibc/tests/testvsnp.c
blob: c86e8b30fb4b0d3049c3bd769e9bba6828a76558 (plain)
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
#include <assert.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <stdio.h>

int main(void)
{
  int r, i;
  char buffer[512];

  r = snprintf(buffer, 512, "Hello, %d", 37);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %'d", 37373737);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %'x", 0xdeadbeef);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %'#X", 0xdeadbeef);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %'#llo", 0123456701234567ULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  /* Make sure overflow works correctly */
  memset(buffer, '\xff', 512);
  r = snprintf(buffer, 16, "Hello, %'#llo", 0123456701234567ULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);
  for ( i = 16 ; i < 512 ; i++ )
    assert ( buffer[i] == '\xff' );

  r = snprintf(buffer, 512, "Hello, %'#40.20llo", 0123456701234567ULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %'#-40.20llo", 0123456701234567ULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %'#*.*llo", 40, 20, 0123456701234567ULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %'#*.*llo", -40, 20, 0123456701234567ULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %'#*.*llo", -40, -20, 0123456701234567ULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %'#*.*llx", -40, -20, 0123456701234567ULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %p", &buffer);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %P", &buffer);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %20p", &buffer);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %-20p", &buffer);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 512, "Hello, %-20p", NULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 20, "Hello, %'-20p", NULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 15, "Hello, %'-20p", NULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 3, "Hello, %'-20p", NULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  /* This shouldn't change buffer in any way! */
  r = snprintf(buffer, 0, "Hello, %'-20p", NULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  for ( i = -30 ; i <= 30 ; i++ ) {
    r = snprintf(buffer, 40, "Hello, %'*p", i, NULL);
    printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);
  }

  r = snprintf(buffer, 40, "Hello, %'-20s", "String");
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 40, "Hello, %'20s", "String");
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 40, "Hello, %'020s", "String");
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 40, "Hello, %'-20s", NULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 40, "Hello, %'20s", NULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 40, "Hello, %'020s", NULL);
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 40, "Hello, %'-20c", '*');
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 40, "Hello, %'20c", '*');
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  r = snprintf(buffer, 40, "Hello, %'020c", '*');
  printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r);

  return 0;
}