diff options
Diffstat (limited to 'absl/time/duration.cc')
| -rw-r--r-- | absl/time/duration.cc | 50 |
1 files changed, 24 insertions, 26 deletions
diff --git a/absl/time/duration.cc b/absl/time/duration.cc index 911e80f8..634e5d58 100644 --- a/absl/time/duration.cc +++ b/absl/time/duration.cc @@ -96,13 +96,6 @@ inline bool IsValidDivisor(double d) { return d != 0.0; } -// Can't use std::round() because it is only available in C++11. -// Note that we ignore the possibility of floating-point over/underflow. -template <typename Double> -inline double Round(Double d) { - return d < 0 ? std::ceil(d - 0.5) : std::floor(d + 0.5); -} - // *sec may be positive or negative. *ticks must be in the range // -kTicksPerSecond < *ticks < kTicksPerSecond. If *ticks is negative it // will be normalized to a positive value by adjusting *sec accordingly. @@ -260,7 +253,7 @@ inline Duration ScaleDouble(Duration d, double r) { double lo_frac = std::modf(lo_doub, &lo_int); // Rolls lo into hi if necessary. - int64_t lo64 = Round(lo_frac * kTicksPerSecond); + int64_t lo64 = std::round(lo_frac * kTicksPerSecond); Duration ans; if (!SafeAddRepHi(hi_int, lo_int, &ans)) return ans; @@ -407,16 +400,18 @@ int64_t IDivDuration(bool satq, const Duration num, const Duration den, Duration& Duration::operator+=(Duration rhs) { if (time_internal::IsInfiniteDuration(*this)) return *this; if (time_internal::IsInfiniteDuration(rhs)) return *this = rhs; - const int64_t orig_rep_hi = rep_hi_; - rep_hi_ = - DecodeTwosComp(EncodeTwosComp(rep_hi_) + EncodeTwosComp(rhs.rep_hi_)); + const int64_t orig_rep_hi = rep_hi_.Get(); + rep_hi_ = DecodeTwosComp(EncodeTwosComp(rep_hi_.Get()) + + EncodeTwosComp(rhs.rep_hi_.Get())); if (rep_lo_ >= kTicksPerSecond - rhs.rep_lo_) { - rep_hi_ = DecodeTwosComp(EncodeTwosComp(rep_hi_) + 1); + rep_hi_ = DecodeTwosComp(EncodeTwosComp(rep_hi_.Get()) + 1); rep_lo_ -= kTicksPerSecond; } rep_lo_ += rhs.rep_lo_; - if (rhs.rep_hi_ < 0 ? rep_hi_ > orig_rep_hi : rep_hi_ < orig_rep_hi) { - return *this = rhs.rep_hi_ < 0 ? -InfiniteDuration() : InfiniteDuration(); + if (rhs.rep_hi_.Get() < 0 ? rep_hi_.Get() > orig_rep_hi + : rep_hi_.Get() < orig_rep_hi) { + return *this = + rhs.rep_hi_.Get() < 0 ? -InfiniteDuration() : InfiniteDuration(); } return *this; } @@ -424,18 +419,21 @@ Duration& Duration::operator+=(Duration rhs) { Duration& Duration::operator-=(Duration rhs) { if (time_internal::IsInfiniteDuration(*this)) return *this; if (time_internal::IsInfiniteDuration(rhs)) { - return *this = rhs.rep_hi_ >= 0 ? -InfiniteDuration() : InfiniteDuration(); + return *this = rhs.rep_hi_.Get() >= 0 ? -InfiniteDuration() + : InfiniteDuration(); } - const int64_t orig_rep_hi = rep_hi_; - rep_hi_ = - DecodeTwosComp(EncodeTwosComp(rep_hi_) - EncodeTwosComp(rhs.rep_hi_)); + const int64_t orig_rep_hi = rep_hi_.Get(); + rep_hi_ = DecodeTwosComp(EncodeTwosComp(rep_hi_.Get()) - + EncodeTwosComp(rhs.rep_hi_.Get())); if (rep_lo_ < rhs.rep_lo_) { - rep_hi_ = DecodeTwosComp(EncodeTwosComp(rep_hi_) - 1); + rep_hi_ = DecodeTwosComp(EncodeTwosComp(rep_hi_.Get()) - 1); rep_lo_ += kTicksPerSecond; } rep_lo_ -= rhs.rep_lo_; - if (rhs.rep_hi_ < 0 ? rep_hi_ < orig_rep_hi : rep_hi_ > orig_rep_hi) { - return *this = rhs.rep_hi_ >= 0 ? -InfiniteDuration() : InfiniteDuration(); + if (rhs.rep_hi_.Get() < 0 ? rep_hi_.Get() < orig_rep_hi + : rep_hi_.Get() > orig_rep_hi) { + return *this = rhs.rep_hi_.Get() >= 0 ? -InfiniteDuration() + : InfiniteDuration(); } return *this; } @@ -446,7 +444,7 @@ Duration& Duration::operator-=(Duration rhs) { Duration& Duration::operator*=(int64_t r) { if (time_internal::IsInfiniteDuration(*this)) { - const bool is_neg = (r < 0) != (rep_hi_ < 0); + const bool is_neg = (r < 0) != (rep_hi_.Get() < 0); return *this = is_neg ? -InfiniteDuration() : InfiniteDuration(); } return *this = ScaleFixed<SafeMultiply>(*this, r); @@ -454,7 +452,7 @@ Duration& Duration::operator*=(int64_t r) { Duration& Duration::operator*=(double r) { if (time_internal::IsInfiniteDuration(*this) || !IsFinite(r)) { - const bool is_neg = (std::signbit(r) != 0) != (rep_hi_ < 0); + const bool is_neg = std::signbit(r) != (rep_hi_.Get() < 0); return *this = is_neg ? -InfiniteDuration() : InfiniteDuration(); } return *this = ScaleDouble<std::multiplies>(*this, r); @@ -462,7 +460,7 @@ Duration& Duration::operator*=(double r) { Duration& Duration::operator/=(int64_t r) { if (time_internal::IsInfiniteDuration(*this) || r == 0) { - const bool is_neg = (r < 0) != (rep_hi_ < 0); + const bool is_neg = (r < 0) != (rep_hi_.Get() < 0); return *this = is_neg ? -InfiniteDuration() : InfiniteDuration(); } return *this = ScaleFixed<std::divides>(*this, r); @@ -470,7 +468,7 @@ Duration& Duration::operator/=(int64_t r) { Duration& Duration::operator/=(double r) { if (time_internal::IsInfiniteDuration(*this) || !IsValidDivisor(r)) { - const bool is_neg = (std::signbit(r) != 0) != (rep_hi_ < 0); + const bool is_neg = std::signbit(r) != (rep_hi_.Get() < 0); return *this = is_neg ? -InfiniteDuration() : InfiniteDuration(); } return *this = ScaleDouble<std::divides>(*this, r); @@ -741,7 +739,7 @@ void AppendNumberUnit(std::string* out, double n, DisplayUnit unit) { char buf[kBufferSize]; // also large enough to hold integer part char* ep = buf + sizeof(buf); double d = 0; - int64_t frac_part = Round(std::modf(n, &d) * unit.pow10); + int64_t frac_part = std::round(std::modf(n, &d) * unit.pow10); int64_t int_part = d; if (int_part != 0 || frac_part != 0) { char* bp = Format64(ep, 0, int_part); // always < 1000 |