Ads by ArduinoGetStarted.com
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() {
Serial.begin(9600);
myString.reserve(26);
myString = "Arduino";
myString += "GetStarted";
myString += ".com";
// print the String:
Serial.println(myString);
}
void loop() {
}
The result on Serial Monitor:
COM6
ArduinoGetStarted.com
Autoscroll
Clear output
9600 baud
Newline
※ NOTES AND WARNINGS:
If the string is modified, it is highly recommended using String.reserve() to prevent the memory fragmentation issue
See Also
- Language : Arduino - String
- Language : String.c_str()
- Language : String.charAt()
- Language : String.compareTo()
- Language : String.concat()
- Language : String.endsWith()
- Language : String.equals()
- Language : String.equalsIgnoreCase()
- Language : String.getBytes()
- Language : String.indexOf()
- Language : String.lastIndexOf()
- Language : String.length()
- Language : String.remove()
- Language : String.replace()
- Language : String.setCharAt()
- Language : String.startsWith()
- Language : String.substring()
- Language : String.toCharArray()
- Language : String.toDouble()
- Language : String.toFloat()
- Language : String.toInt()
- Language : String.toLowerCase()
- Language : String.toUpperCase()
- Language : String.trim()
- Example : String Tutorials
※ ARDUINO BUY RECOMMENDATION
| Arduino UNO R3 | |
| Arduino Starter Kit |
Please note: These are Amazon affiliate links. If you buy the components through these links, We will get a commission at no extra cost to you. We appreciate it.