function
<cwctype>
iswblank
Check if wide character is blank
Checks whether c is a blank character.
A blank character is a space character used to separate words within a line of text.
The standard "C" locale considers blank characters the tab character (L'\t') and the space character (L' ').
Other locales may consider blank a different selection of characters, but they must all also be space characters by isspace.
This function is the wide-character equivalent of isblank (<cctype>): If c translates with wctob to a character for which isblank is true, it is always considered a blank character by this function too.
In C++, a locale-specific template version of this function (isblank) exists in header <locale> for all character types.
Parameters
- c
- Wide character to be checked, casted to a wint_t, or WEOF.
wint_t is an integral type.
Return Value
A value different from zero (i.e., true) if indeed c is a blank character. Zero (i.e., false) otherwise.
Example
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|
/* iswblank example */
#include <stdio.h>
#include <wctype.h>
int main ()
{
wchar_t c;
int i=0;
wchar_t str[] = L"Example sentence to test iswblank\n";
while (str[i])
{
c = str[i];
if (iswblank(c)) c = L'\n';
putwchar (c);
i++;
}
return 0;
}
| |
Output:
Example
sentence
to
test
iswblank
|
See also
- isblank
- Check if character is blank (function
)
- iswspace
- Check if wide character is a white-space (function
)
- iswgraph
- Check if wide character has graphical representation (function
)
- iswpunct
- Check if wide character is punctuation character (function
)
- iswalnum
- Check if wide character is alphanumeric (function
)
- isblank (locale)
- Check if character is blank using locale (function template
)