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Justine Tunney 2020-06-15 07:18:57 -07:00
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libc/conv/conv.h Normal file
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#ifndef COSMOPOLITAN_LIBC_CONV_CONV_H_
#define COSMOPOLITAN_LIBC_CONV_CONV_H_
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § conversion ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
/**
* COBOL timestamp (1601) for UNIX epoch (1970).
*
* It's a well-known fact in the social sciences that the introduction
* of the UNIX operation system signalled the end of modernity. Windows
* timestamps are living proof.
*/
#define MODERNITYSECONDS 11644473600
#define HECTONANOSECONDS 10000000
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
int abs(int) libcesque pureconst;
long labs(long) libcesque pureconst;
long long llabs(long long) libcesque pureconst;
char *ltpcpy(char *, long) paramsnonnull() libcesque nocallback;
int llog10(unsigned long) libcesque pureconst;
int atoi(const char *) paramsnonnull() libcesque nosideeffect;
long atol(const char *) paramsnonnull() libcesque nosideeffect;
long long atoll(const char *) paramsnonnull() libcesque nosideeffect;
unsigned long strtoul(const char *, char **, int) paramsnonnull((1));
long long strtoll(const char *, char **, int) paramsnonnull((1));
unsigned long long strtoull(const char *, char **, int) paramsnonnull((1));
long long strtonum(const char *, long long, long long, const char **);
intmax_t div10(intmax_t x, unsigned *rem) hidden;
intmax_t strtoimax(const char *, char **, int) paramsnonnull((1));
uintmax_t strtoumax(const char *, char **, int) paramsnonnull((1));
intmax_t wcstoimax(const wchar_t *, wchar_t **, int);
long wcstol(const wchar_t *, wchar_t **, int);
long strtol(const char *, char **, int)
paramsnonnull((1)) libcesque nosideeffect;
intmax_t __imaxabs(intmax_t) asm("imaxabs") libcesque pureconst;
#define imaxabs(x) __imaxabs(x)
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § conversion » time ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
struct NtFileTime;
struct timespec;
struct timeval;
void filetimetotimespec(struct timespec *, struct NtFileTime) paramsnonnull();
struct NtFileTime timetofiletime(int64_t) nothrow pureconst;
int64_t filetimetotime(struct NtFileTime) nothrow pureconst;
void filetimetotimeval(struct timeval *, struct NtFileTime) nothrow;
struct NtFileTime timevaltofiletime(const struct timeval *) nosideeffect;
long convertmicros(const struct timeval *, long) paramsnonnull() nosideeffect;
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § conversion » manipulation ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
char *basename(const char *) nosideeffect;
char *basename_n(const char *, size_t) nosideeffect;
bool isabspath(const char *) paramsnonnull() nosideeffect;
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § conversion » computation ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
typedef struct {
int quot;
int rem;
} div_t;
typedef struct {
long int quot;
long int rem;
} ldiv_t;
typedef struct {
long long int quot;
long long int rem;
} lldiv_t;
typedef struct {
intmax_t quot;
intmax_t rem;
} imaxdiv_t;
div_t div(int, int) pureconst;
ldiv_t ldiv(long, long) pureconst;
lldiv_t lldiv(long long, long long) pureconst;
imaxdiv_t imaxdiv(intmax_t, intmax_t) pureconst;
double RoundDecimalPlaces(double, double, double(double));
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § conversion » optimizations ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
#if __STDC_VERSION__ + 0 >= 199901L
#define div(num, den) ((div_t){(num) / (den), (num) % (den)})
#define ldiv(num, den) ((ldiv_t){(num) / (den), (num) % (den)})
#define lldiv(num, den) ((lldiv_t){(num) / (den), (num) % (den)})
#endif
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CONV_CONV_H_ */