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length \x0b
h \x68
e \x65
l \x6c
l \x6c
o \x6f
\x20
w \x77
o \x6f
r \x72
l \x6c
d \x64
Characters
In this manual, all characters are expressed using the C-language syntax :
decimal values ddd ddd = 0..255
hexadecimal values\xhh hh = 00..ff
Pascal-language string
Characters
In this manual, all characters are expressed using the C-language syntax :
decimal values ddd ddd = 0..255
hexadecimal values\xhh hh = 00..ff
Pascal-language string
Chapter 1: Communications basics
syntax syntax
Chapter 1: Communications basics
A pascal-language string consists of one or
more characters. The first character of the
string contains the length of the string. There-
fore, a pascal-language string is limited to
255 characters.
Example : hello world
length \x0b
h \x68
e \x65
l \x6c
l \x6c
o \x6f
\x20
w \x77
o \x6f
r \x72
l \x6c
d \x64
h \x68
e \x65
l \x6c
l \x6c
o \x6f
\x20
w \x77
o \x6f
r \x72
l' \x6c
d \x64
NULL \x00
C-language string:
A C-language string consists of one or more
characters.
The last character of the string is always the
NULL (\x00) character. Therefore, the length
of a C-language string is determined by the
position of the NULL character.
Example : hello world
A pascal-language string consists of one
or more characters. The first character
of the string contains the length of the
string. Therefore, a pascal-language
string is limited to 255 characters.
Example : hello world
C-language string:
A C-language string consists of one or more
characters.
The last character of the string is always the
NULL (\x00) character. Therefore, the length
of a C-language string is determined by the
position of the NULL character.
Example : hello world
h \x68
e \x65
l \x6c
l \x6c
o \x6f
\x20
w \x77
o \x6f
r \x72
l' \x6c
d \x64
NULL \x00