06-05-2008
matching a letter in a word
hi,
if i have a string of letters and seperatly i have a single letter. how do i check whether that specific letter is in my string aswell? any ideas?
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I want to ask how to change some letter in my file with other letter in spesific line
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data.txt
1
1
1
0
0
0
0
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LEARN ABOUT NETBSD
toupper
TOUPPER(3) BSD Library Functions Manual TOUPPER(3)
NAME
toupper -- lower case to upper case letter conversion
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <ctype.h>
int
toupper(int c);
DESCRIPTION
The toupper() function converts a lower-case letter to the corresponding upper-case letter.
RETURN VALUES
If the argument is a lower-case letter, the toupper() function returns the corresponding upper-case letter if there is one; otherwise the
argument is returned unchanged.
SEE ALSO
ctype(3), isalnum(3), isalpha(3), isascii(3), iscntrl(3), isdigit(3), isgraph(3), islower(3), isprint(3), ispunct(3), isspace(3), isupper(3),
isxdigit(3), stdio(3), toascii(3), ascii(7)
STANDARDS
The toupper() function conforms to ANSI X3.159-1989 (``ANSI C89'').
CAVEATS
The argument to toupper() must be EOF or representable as an unsigned char; otherwise, the behavior is undefined. See the CAVEATS section of
ctype(3) for more details.
BSD
April 17, 2008 BSD