ISCNTRL(3) BSD Library Functions Manual ISCNTRL(3)NAME
iscntrl -- control character test
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <ctype.h>
int
iscntrl(int c);
DESCRIPTION
The iscntrl() function tests for any control character. The value of the argument must be representable as an unsigned char or the value of
EOF.
In the ASCII character set, this includes the following characters (preceded by their numeric values, in octal):
000 NUL 001 SOH 002 STX 003 ETX 004 EOT
005 ENQ 006 ACK 007 BEL 010 BS 011 HT
012 NL 013 VT 014 NP 015 CR 016 SO
017 SI 020 DLE 021 DC1 022 DC2 023 DC3
024 DC4 025 NAK 026 SYN 027 ETB 030 CAN
031 EM 032 SUB 033 ESC 034 FS 035 GS
036 RS 037 US 177 DEL
RETURN VALUES
The iscntrl() function returns zero if the character tests false and returns non-zero if the character tests true.
COMPATIBILITY
The 4.4BSD extension of accepting arguments outside of the range of the unsigned char type in locales with large character sets is considered
obsolete and may not be supported in future releases. The iswcntrl() function should be used instead.
SEE ALSO ctype(3), isalnum_l(3), iswcntrl(3), ascii(7)STANDARDS
The iscntrl() function conforms to ISO/IEC 9899:1990 (``ISO C90'').
BSD July 17, 2005 BSD
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ISCNTRL(3) BSD Library Functions Manual ISCNTRL(3)NAME
iscntrl -- control character test
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <ctype.h>
int
iscntrl(int c);
DESCRIPTION
The iscntrl() function tests for any control character. The value of the argument must be representable as an unsigned char or the value of
EOF.
In the ASCII character set, this includes the following characters (preceded by their numeric values, in octal):
000 NUL 001 SOH 002 STX 003 ETX 004 EOT
005 ENQ 006 ACK 007 BEL 010 BS 011 HT
012 NL 013 VT 014 NP 015 CR 016 SO
017 SI 020 DLE 021 DC1 022 DC2 023 DC3
024 DC4 025 NAK 026 SYN 027 ETB 030 CAN
031 EM 032 SUB 033 ESC 034 FS 035 GS
036 RS 037 US 177 DEL
RETURN VALUES
The iscntrl() function returns zero if the character tests false and returns non-zero if the character tests true.
COMPATIBILITY
The 4.4BSD extension of accepting arguments outside of the range of the unsigned char type in locales with large character sets is considered
obsolete and may not be supported in future releases. The iswcntrl() function should be used instead.
SEE ALSO ctype(3), isalnum_l(3), iswcntrl(3), ascii(7)STANDARDS
The iscntrl() function conforms to ISO/IEC 9899:1990 (``ISO C90'').
BSD July 17, 2005 BSD
I think I am ready for the 310-014 exam but not quite ready for the 310-015 exam as I still have a lot of study and practice to do to prepare for it..
Do most people sit the 014 exam and then prepare for the second exam?
Any advice on how to tackle these is appreciated.. (3 Replies)
Sorry if this been posted before.
At the moment I'm having problem with the iscntrl() function. I need it to run a check on code entered into a Text Box, however I also need to allow the "Ö, ö" Swedish characters. The iscntrl() function seems to pick up the characters above as part of the... (0 Replies)
All,
I want to convert multiple \0 005 characters to line feed 012 character
in a binary file to make to readable. Here is the sample od -c file
output:
0000000 254 355 \0 005 s r \0 * c o m . c i s c
Here is the sample od -b file output:
0000000 254 355 000... (0 Replies)
I am reading a file of Linux ( like mentioned below) & the data is represented in a single line like mentioned below:
11/03 4:00 39992 0.098 5.195 0.034 0.001 1.091 182 0.000 0 0.071 4.252 0.033 0.001 666.53
Now i want to print the result in other file something like this :-
39992... (5 Replies)
Hi Team,
Could you please help me with the below scenario.
I have a file which is in the below format.
Zipcode,001,001f,002,002f,003,003f,004,004f,005,005f,006,006f,007,007f
0050, ,0, ,0, ,0, ,1,*,7, ,7, ,7
0060, ,0, ,0, ,7, ,0,*,7, ,0, ,0
Would need the output as below.
First field... (1 Reply)