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- #include <iostream>
- #include <string>
- #include <cctype>
- void check_isspace(char ch, std::string desc)
- {
- if(std::isspace(ch))
- std::cout << desc << " is a space" << std::endl;
- else
- std::cout << desc << " is not a space" << std::endl;
- }
- int main()
- {
- // passing characters
- check_isspace(' ', "space"); // space
- check_isspace('\t', "tab"); // tab
- check_isspace('\v', "vertical tab"); // vertical tab
- check_isspace('\n', "new line"); // new line
- check_isspace('\r', "carriage return"); // carriage return
- check_isspace('\f', "form feed"); // form feed
- std::cout << std::endl << "Try again with number represetations instead of char" << std::endl << std::endl;
- // passing int values in place of chars
- check_isspace(0x20, "space"); // space
- check_isspace(0x09, "tab"); // tab
- check_isspace(0x0b, "vertical tab"); // vertical tab
- check_isspace(0x0a, "new line"); // new line
- check_isspace(0x0d, "carriage return"); // carriage return
- check_isspace(0x0c, "form feed"); // form feed
- std::cout << std::endl << "Try non-space chars" << std::endl << std::endl;
- // check few numbers
- check_isspace(5, "number"); // number
- check_isspace(55.99, "decimal number"); // decimal number
- // check few non-space chars
- check_isspace('a', "char a"); // char 1
- check_isspace(0x01, "ascii char 01"); // ascii char 1
- std::cout << std::endl << "IMPORTANT: floating value is considered as space. Reason: 11.99 becomes 11 when assigned to char parameter, which is line feed(\n)." << std::endl << std::endl;
- check_isspace(11.99, "decimal number"); // IMPORTANT! decimal number
- return 0;
- }
- /*********** Output **********
- space is a space
- tab is a space
- vertical tab is a space
- new line is a space
- carriage return is a space
- form feed is a space
- Try again with number represetations instead of char
- space is a space
- tab is a space
- vertical tab is a space
- new line is a space
- carriage return is a space
- form feed is a space
- Try non-space chars
- number is not a space
- decimal number is not a space
- char a is not a space
- ascii char 01 is not a space
- IMPORTANT: floating value is considered as space. Reason: 11.99 becomes 11 when assigned to char parameter, which is line feed(
- ).
- decimal number is a space
- */
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