Errata

Perl 6 and Parrot Essentials

Errata for Perl 6 and Parrot Essentials

Submit your own errata for this product.

The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Date Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.

Color key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update

Version Location Description Submitted By Date submitted Date corrected
Printed
Page 11
1st paragraph, 1st line

"there is is only" should read "there is only"

 Anonymous   
Printed
Page 48
last (3rd) line of sample code in the "Zip Operator" section

The line of code that demonstrates the zip operator seems to have a spurious "boolean
not" symbol immediately before the "broken bar" symbol (which looks like a capital L
flipped backwards and then rotated 90 degrees counter-clockwise)

 Anonymous   
Printed
Page 69
The end of the last sentence of the third paragraph.

The sentence ending:
"and the rest of the signature with a semi-colon:"
should say:
"and the rest of the signature with a colon:"

 Anonymous   
Printed
Page 118
1st paragraph, 2 occurences

DEFANGED_object
should be:
object

 Anonymous   
Printed
Page 119
footnote

DEFANGED_Objective C is particularly simple...
should be:
Objective C is particularly simple...

 Anonymous   
Printed
Page 127
Footnote

The range of 32-bit integers is given as -231 to +231-1.
This should be: -2^31 to +2^(31)-1.

 Anonymous   
Printed
Page 142
2nd section, first para, 3rd line

"Logical operations are implemented for integers and PMCs."

But it then gives true/false values for float numerics and strings,

The definition of the truth of values should be moved to page 149 into "conditional branches".

 Anonymous   
Printed
Page 157
3rd last paragraph

Change:
The store_lexand find_lex opcodes
to:
The store_lex and find_lex opcodes

 Anonymous   
Printed
Page 163
3 lines before Table 9-5

"the rest of the parameters" should read "the rest of the characters"

 Anonymous