On Sat, Sep 26, 2015 at 12:39:52AM -0400, Daniel Richard G. wrote: > I'm happy to report that test-c-ctype in Git ff1ef114 now passes with > both signed and unsigned EBCDIC chars on z/OS. Thank you for chasing > this down!
A "char" configured as signed in EBCDIC violates the ANSI C standard, which says: If a member of the basic execution character set is stored in a char object, its value is guaranteed to be positive. whereas the "basic execution character set" is defined as: Both the basic source and basic execution character sets shall have the following members: the 26 uppercase letters of the Latin alphabet A B C D E F G H I J K L M N O P Q R S T U V W X Y Z the 26 lowercase letters of the Latin alphabet a b c d e f g h i j k l m n o p q r s t u v w x y z the 10 decimal digits 0 1 2 3 4 5 6 7 8 9 the following 29 graphic characters ! " # % & ' ( ) * + , - . / : ; < = > ? [ \ ] ^ _ { | } ~ the space character, and control characters representing horizontal tab, vertical tab, and form feed. Do people actually used signed "char" with EBCDIC?