abseil-duration-comparison.rst 988 Bytes

abseil-duration-comparison

Checks for comparisons which should be in the absl::Duration domain instead of the floating point or integer domains.

N.B.: In cases where a Duration was being converted to an integer and then compared against a floating-point value, truncation during the Duration conversion might yield a different result. In practice this is very rare, and still indicates a bug which should be fixed.

Examples:

// Original - Comparison in the floating point domain
double x;
absl::Duration d;
if (x < absl::ToDoubleSeconds(d)) ...

// Suggested - Compare in the absl::Duration domain instead
if (absl::Seconds(x) < d) ...


// Original - Comparison in the integer domain
int x;
absl::Duration d;
if (x < absl::ToInt64Microseconds(d)) ...

// Suggested - Compare in the absl::Duration domain instead
if (absl::Microseconds(x) < d) ...