once_cell 1.16.0

Single assignment cells and lazy values.
Documentation

once_cell

This version has 11 feature flags, 4 of them enabled by default.

default

  • std

std

  • alloc

alloc

  • race

race

    This feature flag does not enable additional features.

critical-section

  • critical_section
  • atomic_polyfill

atomic-polyfill

  • critical-section

parking_lot

  • parking_lot_core

atomic_polyfill

    This feature flag does not enable additional features.

parking_lot_core

    This feature flag does not enable additional features.

critical_section

    This feature flag does not enable additional features.

unstable

    This feature flag does not enable additional features.