Class: Numeric

Inherits:

Object

• Object
• Numeric

Defined in:

lib/casual_support/numeric/constrain.rb,
lib/casual_support/numeric/at_least_most.rb

Instance Method Summary

• #at_least(limit) ⇒ Numeric

  Enforces a lower bound for a number.

• #at_most(limit) ⇒ Numeric (also: #cap)

  Enforces an upper bound for a number.

• #constrain(low, high) ⇒ Numeric (also: #clamp)

  Constrains a number to a closed interval.

Instance Method Details

#at_least(limit) ⇒ Numeric

Enforces a lower bound for a number.

Parameters:

• limit (Numeric) —

  lower bound

Returns:

• (Numeric) —

  the number constrained by the lower bound

# File 'lib/casual_support/numeric/at_least_most.rb', line 7

def at_least(limit)
  self < limit ? limit : self
end

#at_most(limit) ⇒ Numeric Also known as: cap

Enforces an upper bound for a number.

Parameters:

• limit (Numeric) —

  upper bound

Returns:

• (Numeric) —

  the number constrained by the upper bound

# File 'lib/casual_support/numeric/at_least_most.rb', line 15

def at_most(limit)
  self > limit ? limit : self
end

#constrain(low, high) ⇒ Numeric Also known as: clamp

Constrains a number to a closed interval.

Parameters:

• low (Numeric) —

  lower bound

• high (Numeric) —

  upper bound

Returns:

• (Numeric) —

  the number constrained to the bounds

# File 'lib/casual_support/numeric/constrain.rb', line 8

def constrain(low, high)
  return low if self < low
  return high if self > high
  self
end