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https://github.com/jart/cosmopolitan.git
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cfc3a953ae
This change makes strftime() go faster and makes it possible to format timestamps through the big bang to most of the stelliferous era. India has also been added as a timezone to most binaries. Since we were able to change the struct tm abi, this makes cosmopolitan libc superior, to just about everything else, when it comes to standing the test of time
125 lines
6.6 KiB
C
125 lines
6.6 KiB
C
#ifndef COSMOPOLITAN_LIBC_FMT_CONV_H_
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#define COSMOPOLITAN_LIBC_FMT_CONV_H_
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#include "libc/calls/struct/timespec.h"
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#include "libc/calls/struct/timeval.h"
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#include "libc/nt/struct/filetime.h"
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § conversion ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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#define MODERNITYSECONDS 11644473600ull
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#define HECTONANOSECONDS 10000000ull
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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int abs(int) libcesque pureconst;
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long labs(long) libcesque pureconst;
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long long llabs(long long) libcesque pureconst;
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intmax_t imaxabs(intmax_t) libcesque pureconst;
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int atoi(const char *) paramsnonnull() libcesque;
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long atol(const char *) paramsnonnull() libcesque;
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long long atoll(const char *) paramsnonnull() libcesque;
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unsigned long strtoul(const char *, char **, int) paramsnonnull((1));
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long long strtoll(const char *, char **, int) paramsnonnull((1));
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unsigned long long strtoull(const char *, char **, int) paramsnonnull((1));
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long long strtonum(const char *, long long, long long, const char **);
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intmax_t strtoimax(const char *, char **, int) paramsnonnull((1));
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uintmax_t strtoumax(const char *, char **, int) paramsnonnull((1));
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intmax_t wcstoimax(const wchar_t *, wchar_t **, int);
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uintmax_t wcstoumax(const wchar_t *, wchar_t **, int);
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long wcstol(const wchar_t *, wchar_t **, int);
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unsigned long wcstoul(const wchar_t *, wchar_t **, int);
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long strtol(const char *, char **, int) paramsnonnull((1)) libcesque;
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long sizetol(const char *, long) paramsnonnull() libcesque;
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long long wcstoll(const wchar_t *, wchar_t **, int);
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unsigned long long wcstoull(const wchar_t *, wchar_t **, int);
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int wcscoll(const wchar_t *, const wchar_t *);
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size_t wcsxfrm(wchar_t *, const wchar_t *, size_t);
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § conversion » time ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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int64_t DosDateTimeToUnix(unsigned, unsigned) libcesque nosideeffect;
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struct timeval WindowsTimeToTimeVal(int64_t) libcesque nosideeffect;
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struct timespec WindowsTimeToTimeSpec(int64_t) libcesque nosideeffect;
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int64_t TimeSpecToWindowsTime(struct timespec) libcesque nosideeffect;
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int64_t TimeValToWindowsTime(struct timeval) libcesque nosideeffect;
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struct timeval WindowsDurationToTimeVal(int64_t) libcesque nosideeffect;
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struct timespec WindowsDurationToTimeSpec(int64_t) libcesque nosideeffect;
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static inline struct NtFileTime MakeFileTime(int64_t x) {
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return (struct NtFileTime){(uint32_t)x, (uint32_t)(x >> 32)};
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}
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static inline int64_t ReadFileTime(struct NtFileTime t) {
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uint64_t x = t.dwHighDateTime;
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return x << 32 | t.dwLowDateTime;
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}
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#define FileTimeToTimeSpec(x) WindowsTimeToTimeSpec(ReadFileTime(x))
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#define FileTimeToTimeVal(x) WindowsTimeToTimeVal(ReadFileTime(x))
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#define TimeSpecToFileTime(x) MakeFileTime(TimeSpecToWindowsTime(x))
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#define TimeValToFileTime(x) MakeFileTime(TimeValToWindowsTime(x))
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § conversion » manipulation ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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char *dirname(char *);
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char *basename(char *);
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char *stripext(char *);
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char *stripexts(char *);
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § conversion » computation ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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typedef struct {
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int quot;
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int rem;
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} div_t;
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typedef struct {
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long quot;
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long rem;
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} ldiv_t;
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typedef struct {
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long long quot;
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long long rem;
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} lldiv_t;
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typedef struct {
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intmax_t quot;
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intmax_t rem;
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} imaxdiv_t;
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div_t div(int, int) pureconst;
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ldiv_t ldiv(long, long) pureconst;
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lldiv_t lldiv(long long, long long) pureconst;
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imaxdiv_t imaxdiv(intmax_t, intmax_t) pureconst;
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § conversion » optimizations ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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#if __STDC_VERSION__ + 0 >= 199901L
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#define div(num, den) ((div_t){(num) / (den), (num) % (den)})
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#define ldiv(num, den) ((ldiv_t){(num) / (den), (num) % (den)})
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#define lldiv(num, den) ((lldiv_t){(num) / (den), (num) % (den)})
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#endif
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#if __GNUC__ * 100 + __GNUC_MINOR__ >= 406 || defined(__llvm__)
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int128_t i128abs(int128_t) libcesque pureconst;
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int128_t strtoi128(const char *, char **, int) paramsnonnull((1));
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uint128_t strtou128(const char *, char **, int) paramsnonnull((1));
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int128_t wcstoi128(const wchar_t *, wchar_t **, int);
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uint128_t wcstou128(const wchar_t *, wchar_t **, int);
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#endif /* gcc 4.6+ */
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_FMT_CONV_H_ */
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