Reference for Wiring version 1.0 Build 0100+ If you have a previous version, use the reference included with your software. If see any errors or have any comments, let us know.
Name | isWhitespace() |
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Examples | char tab = 't'; // tab character char digit = '1'; // digit character char upperA = 'A'; // upper case 'A' char lowerA = 'a'; // lower case 'a' char colon = ','; // comma char val; void setup() { Serial.begin(9600); val = toLowerCase(upperA); Serial.print(val); // prints 'a' Serial.print(" "); Serial.print(isAlphaNumeric(digit),DEC); // prints 1 (true) Serial.print(" "); Serial.print(isAlpha(upperA),DEC); // prints 1 (true) Serial.print(" "); Serial.print(isAscii(upperA),DEC); // prints 1 (true) Serial.print(" "); Serial.print(isWhitespace(tab),DEC); // prints 1 (true) Serial.print(" "); Serial.print(isGraph(lowerA),DEC); // prints 1 (true) Serial.print(" "); Serial.print(isLowerCase(lowerA),DEC); // prints 1 (true) Serial.print(" "); Serial.print(isSpace(val),DEC); // prints 0 (false) Serial.print(" "); Serial.print(isUpperCase(upperA),DEC); // prints 1 (true) Serial.print(" "); Serial.print(isControl(upperA), DEC); // prints 0 (false) Serial.print(" "); Serial.print(isDigit(digit), DEC); // prints 1 (true) Serial.print(" "); Serial.print(isGraph(digit), DEC); // prints 1 (true) Serial.print(" "); Serial.print(isPunct(colon), DEC); // prints 1 (true) Serial.print(" "); Serial.print(isHexadecimalDigit('F'), DEC); // prints 1 (true) Serial.print(" "); val = toLowerCase('K'); // prints 'k' Serial.print(val); Serial.print(" "); val = toAscii(40); Serial.println(val); // prints '(' } void loop() { } |
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Description | Checks for a blank character, that is, a space or a tab. | ||
Syntax | isWhitespace(var)
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Parameters |
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Returns | boolean: true or false | ||
Usage | Application | ||
Related | isAlphaNumeric() isAlpha() isAscii() isWhitespace() isControl() isDigit() isGraph() isLowerCase() isPrintable() isPunct() isSpace() isUpperCase() isHexadecimalDigit() |