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https://github.com/jart/cosmopolitan.git
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Add dontthrow attribute to most libc functions
This will help C++ code that uses exceptions to be tinier. For example, this change shaves away 1000 lines of assembly code from LLVM's libcxx, which is 0.7% of all assembly instructions in the entire library.
This commit is contained in:
Justine Tunney
parent
cb19e172da
commit
eeb20775d2
103 changed files with 1455 additions and 1456 deletions
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@ -5,39 +5,38 @@ 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)
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libcesque pureconst;
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libcesque intmax_t imaxabs(intmax_t) 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 strtoul(const char *, char **, int) libcesque paramsnonnull((1));
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long long strtoll(const char *, char **, int) libcesque paramsnonnull((1));
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unsigned long long strtoull(const char *, char **, int) paramsnonnull((1));
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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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intmax_t strtoimax(const char *, char **, int) libcesque paramsnonnull((1));
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uintmax_t strtoumax(const char *, char **, int) libcesque paramsnonnull((1));
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intmax_t wcstoimax(const wchar_t *, wchar_t **, int) libcesque;
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uintmax_t wcstoumax(const wchar_t *, wchar_t **, int) libcesque;
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long wcstol(const wchar_t *, wchar_t **, int) libcesque;
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unsigned long wcstoul(const wchar_t *, wchar_t **, int) libcesque;
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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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char *sizefmt(char *, uint64_t, uint64_t);
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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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char *sizefmt(char *, uint64_t, uint64_t) libcesque;
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long long wcstoll(const wchar_t *, wchar_t **, int) libcesque;
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unsigned long long wcstoull(const wchar_t *, wchar_t **, int) libcesque;
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int wcscoll(const wchar_t *, const wchar_t *) libcesque;
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size_t wcsxfrm(wchar_t *, const wchar_t *, size_t) libcesque;
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double atof(const char *);
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float strtof(const char *, char **);
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double strtod(const char *, char **);
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long double strtold(const char *, char **);
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float wcstof(const wchar_t *, wchar_t **);
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double wcstod(const wchar_t *, wchar_t **);
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long double wcstold(const wchar_t *, wchar_t **);
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double atof(const char *) libcesque;
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float strtof(const char *, char **) libcesque;
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double strtod(const char *, char **) libcesque;
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long double strtold(const char *, char **) libcesque;
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float wcstof(const wchar_t *, wchar_t **) libcesque;
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double wcstod(const wchar_t *, wchar_t **) libcesque;
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long double wcstold(const wchar_t *, wchar_t **) libcesque;
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#ifdef _COSMO_SOURCE
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char *stripext(char *);
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char *stripexts(char *);
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char *stripext(char *) libcesque;
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char *stripexts(char *) libcesque;
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#endif /* _COSMO_SOURCE */
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typedef struct {
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@ -60,10 +59,10 @@ typedef struct {
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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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libcesque div_t div(int, int) pureconst;
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libcesque ldiv_t ldiv(long, long) pureconst;
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libcesque lldiv_t lldiv(long long, long long) pureconst;
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libcesque imaxdiv_t imaxdiv(intmax_t, intmax_t) pureconst;
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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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@ -22,24 +22,24 @@ COSMOPOLITAN_C_START_
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#define uint64toarray_fixed16 __uint64toarray_fixed16
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#define uint64toarray_radix8 __uint64toarray_radix8
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unsigned LengthInt64(int64_t) pureconst;
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unsigned LengthUint64(uint64_t) pureconst;
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unsigned LengthInt64Thousands(int64_t) pureconst;
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unsigned LengthUint64Thousands(uint64_t) pureconst;
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char *FormatInt32(char[hasatleast 12], int32_t);
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char *FormatUint32(char[hasatleast 12], uint32_t);
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char *FormatInt64(char[hasatleast 21], int64_t);
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char *FormatUint64(char[hasatleast 21], uint64_t);
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char *FormatInt64Thousands(char[hasatleast 27], int64_t);
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char *FormatUint64Thousands(char[hasatleast 27], uint64_t);
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char *FormatOctal32(char[hasatleast 13], uint32_t, bool32);
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char *FormatOctal64(char[hasatleast 24], uint64_t, bool32);
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char *FormatBinary64(char[hasatleast 67], uint64_t, char);
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char *FormatHex64(char[hasatleast 19], uint64_t, char);
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char *FormatFlex64(char[hasatleast 24], int64_t, char);
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size_t uint64toarray_radix16(uint64_t, char[hasatleast 17]);
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size_t uint64toarray_fixed16(uint64_t, char[hasatleast 17], uint8_t);
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size_t uint64toarray_radix8(uint64_t, char[hasatleast 24]);
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libcesque unsigned LengthInt64(int64_t) pureconst;
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libcesque unsigned LengthUint64(uint64_t) pureconst;
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libcesque unsigned LengthInt64Thousands(int64_t) pureconst;
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libcesque unsigned LengthUint64Thousands(uint64_t) pureconst;
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libcesque char *FormatInt32(char[hasatleast 12], int32_t);
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libcesque char *FormatUint32(char[hasatleast 12], uint32_t);
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libcesque char *FormatInt64(char[hasatleast 21], int64_t);
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libcesque char *FormatUint64(char[hasatleast 21], uint64_t);
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libcesque char *FormatInt64Thousands(char[hasatleast 27], int64_t);
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libcesque char *FormatUint64Thousands(char[hasatleast 27], uint64_t);
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libcesque char *FormatOctal32(char[hasatleast 13], uint32_t, bool32);
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libcesque char *FormatOctal64(char[hasatleast 24], uint64_t, bool32);
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libcesque char *FormatBinary64(char[hasatleast 67], uint64_t, char);
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libcesque char *FormatHex64(char[hasatleast 19], uint64_t, char);
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libcesque char *FormatFlex64(char[hasatleast 24], int64_t, char);
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libcesque size_t uint64toarray_radix16(uint64_t, char[hasatleast 17]);
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libcesque size_t uint64toarray_fixed16(uint64_t, char[hasatleast 17], uint8_t);
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libcesque size_t uint64toarray_radix8(uint64_t, char[hasatleast 24]);
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COSMOPOLITAN_C_END_
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#endif /* _COSMO_SOURCE */
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@ -9,11 +9,11 @@ COSMOPOLITAN_C_START_
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#define unzleb64 __unzleb64
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#define unuleb64 __unuleb64
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char *sleb64(char *, int64_t);
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char *zleb64(char[hasatleast 10], int64_t);
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char *uleb64(char[hasatleast 10], uint64_t);
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int unzleb64(const char *, size_t, int64_t *);
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int unuleb64(const char *, size_t, uint64_t *);
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char *sleb64(char *, int64_t) libcesque;
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char *zleb64(char[hasatleast 10], int64_t) libcesque;
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char *uleb64(char[hasatleast 10], uint64_t) libcesque;
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int unzleb64(const char *, size_t, int64_t *) libcesque;
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int unuleb64(const char *, size_t, uint64_t *) libcesque;
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COSMOPOLITAN_C_END_
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#endif /* _COSMO_SOURCE */
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@ -2,8 +2,8 @@
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#define COSMOPOLITAN_LIBC_FMT_LIBGEN_H_
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COSMOPOLITAN_C_START_
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char *dirname(char *);
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char *basename(char *);
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char *dirname(char *) libcesque;
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char *basename(char *) libcesque;
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COSMOPOLITAN_C_END_
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#endif /* COSMOPOLITAN_LIBC_FMT_LIBGEN_H_ */
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@ -9,13 +9,13 @@
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COSMOPOLITAN_C_START_
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int64_t DosDateTimeToUnix(uint32_t, uint32_t) pureconst;
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int64_t TimeSpecToWindowsTime(struct timespec) pureconst;
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int64_t TimeValToWindowsTime(struct timeval) pureconst;
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struct timespec WindowsDurationToTimeSpec(int64_t) pureconst;
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struct timespec WindowsTimeToTimeSpec(int64_t) pureconst;
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struct timeval WindowsDurationToTimeVal(int64_t) pureconst;
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struct timeval WindowsTimeToTimeVal(int64_t) pureconst;
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libcesque int64_t DosDateTimeToUnix(uint32_t, uint32_t) pureconst;
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libcesque int64_t TimeSpecToWindowsTime(struct timespec) pureconst;
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libcesque int64_t TimeValToWindowsTime(struct timeval) pureconst;
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libcesque struct timespec WindowsDurationToTimeSpec(int64_t) pureconst;
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libcesque struct timespec WindowsTimeToTimeSpec(int64_t) pureconst;
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libcesque struct timeval WindowsDurationToTimeVal(int64_t) pureconst;
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libcesque struct timeval WindowsTimeToTimeVal(int64_t) pureconst;
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#define MakeFileTime(x) \
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({ \
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