cosmopolitan/libc/fmt/internal.h
Justine Tunney a15958edc6
Remove some legacy cruft
Function trace logs will report stack usage accurately. It won't include
the argv/environ block. Our clone() polyfill is now simpler and does not
use as much stack memory. Function call tracing on x86 is now faster too
2025-01-02 18:44:07 -08:00

54 lines
2.8 KiB
C

#ifndef COSMOPOLITAN_LIBC_FMT_STRTOL_H_
#define COSMOPOLITAN_LIBC_FMT_STRTOL_H_
#include "libc/ctype.h"
#include "libc/errno.h"
#include "libc/nt/thunk/msabi.h"
#include "libc/str/str.h"
#define CONSUME_SPACES(t, s, c) \
if (endptr) \
*endptr = (t *)(s); \
while (c == ' ' || c == '\t') \
c = *++s
#define GET_SIGN(s, c, d) \
d = c == '-' ? -1 : 1; \
if (c == '-' || c == '+') \
c = *++s
#define GET_RADIX(s, c, r) \
if (!r) { \
if (c == '0') { \
t |= 1; \
c = *++s; \
if ((c == 'x' || c == 'X') && isxdigit(s[1])) { \
c = *++s; \
r = 16; \
} else if ((c == 'b' || c == 'B') && (s[1] == '0' || s[1] == '1')) { \
c = *++s; \
r = 2; \
} else { \
r = 8; \
} \
} else { \
r = 10; \
} \
} else if (!(2 <= r && r <= 36)) { \
errno = EINVAL; \
return 0; \
} else if (c == '0') { \
t |= 1; \
c = *++s; \
if ((r == 2 && \
((c == 'b' || c == 'B') && (s[1] == '0' || s[1] == '1'))) || \
(r == 16 && ((c == 'x' || c == 'X') && isxdigit(s[1])))) { \
c = *++s; \
} \
}
int __vcscanf(int (*)(void *), int (*)(int, void *), void *, const char *,
va_list);
int __fmt(void *, void *, const char *, va_list, int *);
char16_t *__itoa16(char16_t[21], uint64_t) __msabi;
#endif /* COSMOPOLITAN_LIBC_FMT_STRTOL_H_ */