exists()

Description

exists() checks if a file with the name exists already.

Syntax

exists( filename );

Parameters

char *filename – pointer a zero-terminated char array holding the file name

Returns

bool:
– true if a file with the name exists
– false if no file with this name exists

Example Code

#include "SerialFlash.h"
void setup()
{
  while(!Serial);
  SerialFlash.begin();
  if( SerialFlash.exists("myFile.txt") )
    Serial.println("File exists");
  else
    Serial.println("file does not exist");
}
void loop () 
{ }

Notes and Warnings

—

See also

GitHub – PaulStoffregen/SerialFlash – org. code this library is based on
c_str() – function to create a 0-terminated char array from a String
bool() – check the existence of a file by opening it and using bool() operator on it, alternatively