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C library function - ispunct()
Description
The C library function int ispunct(int c) checks whether the passed character is a punctuation character. A punctuation character is any graphic character (as in isgraph) that is not alphanumeric (as in isalnum).
Declaration
Following is the declaration for ispunct() function.
int ispunct(int c);
Parameters
c − This is the character to be checked.
Return Value
This function returns a non-zero value(true) if c is a punctuation character else, zero (false).
Example
The following example shows the usage of ispunct() function.
#include <stdio.h> #include <ctype.h> int main () { int var1 = 't'; int var2 = '1'; int var3 = '/'; int var4 = ' '; if( ispunct(var1) ) { printf("var1 = |%c| is a punctuation character\n", var1 ); } else { printf("var1 = |%c| is not a punctuation character\n", var1 ); } if( ispunct(var2) ) { printf("var2 = |%c| is a punctuation character\n", var2 ); } else { printf("var2 = |%c| is not a punctuation character\n", var2 ); } if( ispunct(var3) ) { printf("var3 = |%c| is a punctuation character\n", var3 ); } else { printf("var3 = |%c| is not a punctuation character\n", var3 ); } if( ispunct(var4) ) { printf("var4 = |%c| is a punctuation character\n", var4 ); } else { printf("var4 = |%c| is not a punctuation character\n", var4 ); } return(0); }
Let us compile and run the above program that will produce the following result −
var1 = |t| is not a punctuation character var2 = |1| is not a punctuation character var3 = |/| is a punctuation character var4 = | | is not a punctuation character
ctype_h.htm
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