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author | NAKAMURA Takumi <geek4civic@gmail.com> | 2025-01-09 17:16:04 +0900 |
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committer | NAKAMURA Takumi <geek4civic@gmail.com> | 2025-01-09 17:16:04 +0900 |
commit | 0aa930a41f2d1ebf1fa90ec42da8f96d15a4dcbb (patch) | |
tree | 6a77b463f700e090df586672c26b9fe765fd115b /libc/src/time/time_utils.cpp | |
parent | ec6892d1c979ce0b84c86918d5cdbb03037b409a (diff) | |
parent | 6d16b1c5c468a79ecf867293023c89ac518ecdda (diff) | |
download | llvm-users/chapuni/cov/single/nextcount-base.zip llvm-users/chapuni/cov/single/nextcount-base.tar.gz llvm-users/chapuni/cov/single/nextcount-base.tar.bz2 |
Merge branch 'users/chapuni/cov/single/pair' into users/chapuni/cov/single/nextcount-baseusers/chapuni/cov/single/nextcount-base
Diffstat (limited to 'libc/src/time/time_utils.cpp')
-rw-r--r-- | libc/src/time/time_utils.cpp | 53 |
1 files changed, 26 insertions, 27 deletions
diff --git a/libc/src/time/time_utils.cpp b/libc/src/time/time_utils.cpp index 509cad8..abc93b8 100644 --- a/libc/src/time/time_utils.cpp +++ b/libc/src/time/time_utils.cpp @@ -10,12 +10,11 @@ #include "src/__support/CPP/limits.h" // INT_MIN, INT_MAX #include "src/__support/common.h" #include "src/__support/macros/config.h" +#include "src/time/time_constants.h" namespace LIBC_NAMESPACE_DECL { namespace time_utils { -using LIBC_NAMESPACE::time_utils::TimeConstants; - static int64_t computeRemainingYears(int64_t daysPerYears, int64_t quotientYears, int64_t *remainingDays) { @@ -52,36 +51,36 @@ int64_t update_from_seconds(int64_t total_seconds, struct tm *tm) { (sizeof(time_t) == 4) ? INT_MIN : INT_MIN * static_cast<int64_t>( - TimeConstants::NUMBER_OF_SECONDS_IN_LEAP_YEAR); + time_constants::NUMBER_OF_SECONDS_IN_LEAP_YEAR); constexpr time_t time_max = (sizeof(time_t) == 4) ? INT_MAX : INT_MAX * static_cast<int64_t>( - TimeConstants::NUMBER_OF_SECONDS_IN_LEAP_YEAR); + time_constants::NUMBER_OF_SECONDS_IN_LEAP_YEAR); time_t ts = static_cast<time_t>(total_seconds); if (ts < time_min || ts > time_max) return time_utils::out_of_range(); int64_t seconds = - total_seconds - TimeConstants::SECONDS_UNTIL2000_MARCH_FIRST; - int64_t days = seconds / TimeConstants::SECONDS_PER_DAY; - int64_t remainingSeconds = seconds % TimeConstants::SECONDS_PER_DAY; + total_seconds - time_constants::SECONDS_UNTIL2000_MARCH_FIRST; + int64_t days = seconds / time_constants::SECONDS_PER_DAY; + int64_t remainingSeconds = seconds % time_constants::SECONDS_PER_DAY; if (remainingSeconds < 0) { - remainingSeconds += TimeConstants::SECONDS_PER_DAY; + remainingSeconds += time_constants::SECONDS_PER_DAY; days--; } - int64_t wday = (TimeConstants::WEEK_DAY_OF2000_MARCH_FIRST + days) % - TimeConstants::DAYS_PER_WEEK; + int64_t wday = (time_constants::WEEK_DAY_OF2000_MARCH_FIRST + days) % + time_constants::DAYS_PER_WEEK; if (wday < 0) - wday += TimeConstants::DAYS_PER_WEEK; + wday += time_constants::DAYS_PER_WEEK; // Compute the number of 400 year cycles. - int64_t numOfFourHundredYearCycles = days / TimeConstants::DAYS_PER400_YEARS; - int64_t remainingDays = days % TimeConstants::DAYS_PER400_YEARS; + int64_t numOfFourHundredYearCycles = days / time_constants::DAYS_PER400_YEARS; + int64_t remainingDays = days % time_constants::DAYS_PER400_YEARS; if (remainingDays < 0) { - remainingDays += TimeConstants::DAYS_PER400_YEARS; + remainingDays += time_constants::DAYS_PER400_YEARS; numOfFourHundredYearCycles--; } @@ -89,17 +88,17 @@ int64_t update_from_seconds(int64_t total_seconds, struct tm *tm) { // "four hundred year cycles" will be 4 hundred year cycles or less in 400 // years. int64_t numOfHundredYearCycles = computeRemainingYears( - TimeConstants::DAYS_PER100_YEARS, 4, &remainingDays); + time_constants::DAYS_PER100_YEARS, 4, &remainingDays); // The remaining number of years after computing the number of // "hundred year cycles" will be 25 four year cycles or less in 100 years. - int64_t numOfFourYearCycles = - computeRemainingYears(TimeConstants::DAYS_PER4_YEARS, 25, &remainingDays); + int64_t numOfFourYearCycles = computeRemainingYears( + time_constants::DAYS_PER4_YEARS, 25, &remainingDays); // The remaining number of years after computing the number of // "four year cycles" will be 4 one year cycles or less in 4 years. int64_t remainingYears = computeRemainingYears( - TimeConstants::DAYS_PER_NON_LEAP_YEAR, 4, &remainingDays); + time_constants::DAYS_PER_NON_LEAP_YEAR, 4, &remainingDays); // Calculate number of years from year 2000. int64_t years = remainingYears + 4 * numOfFourYearCycles + @@ -112,8 +111,8 @@ int64_t update_from_seconds(int64_t total_seconds, struct tm *tm) { // We add 31 and 28 for the number of days in January and February, since our // starting point was March 1st. int64_t yday = remainingDays + 31 + 28 + leapDay; - if (yday >= TimeConstants::DAYS_PER_NON_LEAP_YEAR + leapDay) - yday -= TimeConstants::DAYS_PER_NON_LEAP_YEAR + leapDay; + if (yday >= time_constants::DAYS_PER_NON_LEAP_YEAR + leapDay) + yday -= time_constants::DAYS_PER_NON_LEAP_YEAR + leapDay; int64_t months = 0; while (daysInMonth[months] <= remainingDays) { @@ -121,8 +120,8 @@ int64_t update_from_seconds(int64_t total_seconds, struct tm *tm) { months++; } - if (months >= TimeConstants::MONTHS_PER_YEAR - 2) { - months -= TimeConstants::MONTHS_PER_YEAR; + if (months >= time_constants::MONTHS_PER_YEAR - 2) { + months -= time_constants::MONTHS_PER_YEAR; years++; } @@ -131,19 +130,19 @@ int64_t update_from_seconds(int64_t total_seconds, struct tm *tm) { // All the data (years, month and remaining days) was calculated from // March, 2000. Thus adjust the data to be from January, 1900. - tm->tm_year = static_cast<int>(years + 2000 - TimeConstants::TIME_YEAR_BASE); + tm->tm_year = static_cast<int>(years + 2000 - time_constants::TIME_YEAR_BASE); tm->tm_mon = static_cast<int>(months + 2); tm->tm_mday = static_cast<int>(remainingDays + 1); tm->tm_wday = static_cast<int>(wday); tm->tm_yday = static_cast<int>(yday); tm->tm_hour = - static_cast<int>(remainingSeconds / TimeConstants::SECONDS_PER_HOUR); + static_cast<int>(remainingSeconds / time_constants::SECONDS_PER_HOUR); tm->tm_min = - static_cast<int>(remainingSeconds / TimeConstants::SECONDS_PER_MIN % - TimeConstants::SECONDS_PER_MIN); + static_cast<int>(remainingSeconds / time_constants::SECONDS_PER_MIN % + time_constants::SECONDS_PER_MIN); tm->tm_sec = - static_cast<int>(remainingSeconds % TimeConstants::SECONDS_PER_MIN); + static_cast<int>(remainingSeconds % time_constants::SECONDS_PER_MIN); // TODO(rtenneti): Need to handle timezone and update of tm_isdst. tm->tm_isdst = 0; |