Ispunct Dev C++

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  • The ispunct function returns non-zero if its argument is a printing character but neither alphanumeric nor a space. Otherwise, zero is returned. Related topics isalnum - isalpha - iscntrl - isdigit - isgraph - isspace - isxdigit.
  • Checks whether c is a punctuation character. The standard 'C' locale considers punctuation characters all graphic characters (as in isgraph) that are not alphanumeric (as in isalnum). Other locales may consider a different selection of characters as punctuation characters, but in any case they are isgraph but not isalnum.
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Ioannis Vranos wrote:
ispunct() returns true for all symbols? (like <>/@^&#@ etc).
Caveat: You cross-posted this question to newsgroups that cover two different
computer languages. You may get two different answers, depending on which
language is described.
The ISO/IEC 9989:1999 draft for the ISO C'99 standard says of ispunct()
'The ispunct function tests for any printing character that is one of a
locale-specific set of punctuation characters for which neither isspace nor
isalnum is true. In the 'C' locale, ispunct returns true for every printing
character for which neither isspace nor isalnum is true.'
So, to answer your question, for ISO C'99, in the 'C' locale, all symbols will
return true from ispunct, as they
a) are printing characters,
b) do not return true from isspace, and
c) do not return true from isalnum
Other locales may result in different values from C'99 ispunct for those characters.
Other levels of C standards compliance (i.e. C'90, K&R C, etc.) may result in
different values from ispunct for those characters.
Other languages may result in different values from ispunct for those characters.
- --
Lew Pitcher
Master Codewright & JOAT-in-training GPG public key available on request
Registered Linux User #112576 (http://counter.li.org/)
Slackware - Because I know what I'm doing.
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Ispunct Dev C 5

Return Value: The ispunct function returns a value of 1 if c is a punctuation character or a value of 0 if it is not. See Also: isalnum, isalpha, iscntrl, isdigit, isgraph, islower, isprint, isspace, isupper, isxdigit. Cprogramming.com is a web site devoted to the C programming language. It has general, and graphics, programming tutorials, source code, selected links, and an active programming message board. Auto tune software free download for windows 10. Int ispunct ( int c ). In C, a locale-specific template version of this function exists in header. Parameters c Character to be checked, casted to an int, or EOF. Return Value A value different from zero (i.e., true) if indeed c is a punctuation character.