I want to give a string as argument to SD.remove
When I try that I get
Initializing SD card..
and restart of sketch
Is this to be expected from SD.remove
In Reference and examples I can only see static text argument so I guess answer is yes.
If so, can I use some trick to do what I want ?
Ha det gött
If you are using a String object, try this:
remove receives what is called a "constant char pointer", aka C-style string. So String.c_str() returns a C-style string "view" of its contents.
I tested but had same failure
Tested like this:
I found this solution working:
t = "test.txt";
There's no reason to waste resources on a String if its only lot in life is to be used to generate a char array.
char* buf = "test.txt";
c-style strings are much safer on an Arduino that the String class.
Yes I kinda understand, browsing forum, Strings are not so popular.
Just had a hard time with pointers starting programming.
Thanks for the example. I'll try that out