Implementation Defined Behavior
ISO Standard:
Implementation:
“The manner of execution of the string by the system function
(7.20.4.5).”
The host environment is application defined.
A.6
IDENTIFIERS
ISO Standard:
Implementation:
ISO Standard:
Implementation:
“Which additional multibyte characters may appear in identifiers
and their correspondence to universal character names (6.4.2).”
No.
“The number of significant initial characters in an identifier
(5.2.4.1, 6.4.2).”
All characters are significant.
A.7
CHARACTERS
ISO Standard:
Implementation:
ISO Standard:
ISO Standard:
Implementation:
ISO Standard:
Implementation:
ISO Standard:
Implementation:
ISO Standard:
Implementation:
? 2007 Microchip Technology Inc.
“The number of bits in a byte (C90 3.4, C99 3.6).”
8.
“The values of the members of the execution character set (C90
and C99 5.2.1).”
“The unique value of the member of the execution character set
produced for each of the standard alphabetic escape sequences
(C90 and C99 5.2.2).”
The execution character set is ASCII.
“The value of a char object into which has been stored any
character other than a member of the basic execution character
set (C90 6.1.2.5, C99 6.2.5).”
The value of the char object is the 8 bit binary representation of the
character in the source character set. That is, no translation is
done.
“Which of signed char or unsigned char has the same range,
representation, and behavior as “plain” char (C90 6.1.2.5, C90
6.2.1.1, C99 6.2.5, C99 6.3.1.1).”
By default, signed char is functionally equivalent to plain char. The
options -funsigned-char and -fsigned-char can be used
to change the default.
“The mapping of members of the source character set (in
character constants and string literals) to members of the
execution character set (C90 6.1.3.4, C99 6.4.4.4, C90 and C99
5.1.1.2).”
The binary representation of the source character set is preserved
to the execution character set.
DS51686A-page 89
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