7.4 Floating-point numbers
enabled-floating-point-traps supported-floating-point-conditions with-floating-point-trapsThe function
enabled-floating-point-trapsreturns a list of the floating-point conditions that are currently operative for trapping floating-point errors. The constant
supported-floating-point-conditionsdefines the hardware-supported error-trapping conditions for floating-point operations. In general, these conditions operate under the same mechanism as conditions described in the chapter "Conditions" in CLtL2. However, note that these conditions cause traps in the hardware; any floating-point conditions that you define with the macro
define-conditionare ignored by
enabled-floating-point-traps. The macro
with-floating-point-trapsenables certain conditions and disables others during the execution of its body.
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