String.reserve()

Description

The String reserve() function allows you to allocate a buffer in memory for manipulating Strings.

Syntax

myString.reserve(size)

Parameter Values

  • myString: a variable of type String.
  • size: the number of bytes in memory to save for String manipulation. Allowed data types: unsigned int.

Return Values

  • Nothing

Example Code

String myString; void setup() { // initialize serial and wait for port to open: Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for native USB } myString.reserve(26); myString = "i="; myString += "1234"; myString += ", is that ok?"; // print the String: Serial.println(myString); } void loop() { // nothing to do here }

See Also

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