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
|
#include "fmt.h"
char* utoa2(unsigned long i, char* buf)
{
if (i < 10)
*buf = i + '0';
else {
buf = utoa2(i / 10, buf);
*buf = (i % 10) + '0';
}
*++buf = 0;
return buf;
}
#ifdef SELFTEST_MAIN
void test(unsigned long u)
{
char buf[32];
char* ptr;
ptr = utoa2(u, buf);
obuf_write(&outbuf, buf, ptr - buf);
NL();
}
MAIN
{
test(0);
test(1);
test(11);
test(0x7fffffffUL);
test(0x80000000UL);
test(0xffffffffUL);
}
#endif
#ifdef SELFTEST_EXP
0
1
11
2147483647
2147483648
4294967295
#endif
|
