go/src/crypto/internal/fips/cast.go

// fatal is [runtime.fatal], pushed via linkname.
//
//go:linkname fatal
func fatal(string)

var failfipscast …

var testingOnlyCASTHook …

// CAST runs the named Cryptographic Algorithm Self-Test (if compiled and
// operated in FIPS mode) and aborts the program (stopping the module
// input/output and entering the "error state") if the self-test fails.
//
// These are mandatory self-checks that must be performed by FIPS 140-3 modules
// before the algorithm is used. See Implementation Guidance 10.3.A.
//
// The name must not contain commas, colons, hashes, or equal signs.
//
// When calling this function, also add the calling package to cast_test.go.
func CAST(name string, f func() error) { … }