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Alexander-Ignition/swift_asserts.md

Last active July 30, 2019 11:57
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Swift Asserts
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swift_asserts.md

Swift Asserts

Function name Condition In playgrounds and -Onone builds (the default for Xcode's Debug configuration) In -O builds (the default for Xcode's Release configuration) In -Ounchecked builds
assert 🔘 🔘 ⚪ ⚪
assertionFailure ⚪ 🔘 ⚪ ⚪
precondition 🔘 🔘 🔘 ⚪
preconditionFailure ⚪ 🔘 🔘 ⚪
fatalError ⚪ 🔘 🔘 🔘
dispatchPrecondition 🔘 🔘 🔘 ⚪
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