fix warning: constant ::Fixnum is deprecated

fix Fixnum deprecated warning on Ruby2.4-preview3.
Fixnum was unify into Integer.
https://bugs.ruby-lang.org/issues/12005

1 files changed, 5 insertions, 5 deletions

diff --git a/lib/axlsx/util/validators.rb b/lib/axlsx/util/validators.rb
index 9c6f34aa..2b4afd8d 100644
--- a/lib/axlsx/util/validators.rb
+++ b/lib/axlsx/util/validators.rb
@@ -80,16 +80,16 @@ module Axlsx
   end
   
   UINT_VALIDATOR = lambda { |arg| arg.respond_to?(:>=) && arg >= 0 }
-  
-  # Requires that the value is a Fixnum or Integer and is greater or equal to 0
+
+  # Requires that the value is a Integer and is greater or equal to 0
   # @param [Any] v The value validated
-  # @raise [ArgumentError] raised if the value is not a Fixnum or Integer value greater or equal to 0
+  # @raise [ArgumentError] raised if the value is not a Integer value greater or equal to 0
   # @return [Boolean] true if the data is valid
   def self.validate_unsigned_int(v)
     DataTypeValidator.validate(:unsigned_int, Integer, v, UINT_VALIDATOR)
   end
 
-  # Requires that the value is a Fixnum Integer or Float and is greater or equal to 0
+  # Requires that the value is a Integer or Float and is greater or equal to 0
   # @param [Any] v The value validated
   # @raise [ArgumentError] raised if the value is not a Fixnun, Integer, Float value greater or equal to 0
   # @return [Boolean] true if the data is valid
@@ -104,7 +104,7 @@ module Axlsx
   end
 
   # Requires that the value is a form that can be evaluated as a boolean in an xml document.
-  # The value must be an instance of Fixnum, String, Integer, Symbol, TrueClass or FalseClass and
+  # The value must be an instance of String, Integer, Symbol, TrueClass or FalseClass and
   # it must be one of 0, 1, "true", "false", :true, :false, true, false, "0", or "1"
   # @param [Any] v The value validated
   def self.validate_boolean(v)