Questions tagged [printf]
10 questions
2
votes
3 answers
formatting of IPAddress via printf(...) family similar to Serial Object
I am trying to use an sprintf with an IPAddress and I am not sure why Serial.print() is able to convert IPAddress to a reasonable human readable representation. I mean, presumably it uses an overloaded function that detects what type the parameter…
Octopus
- 160
- 2
- 8
1
vote
1 answer
How to use a variable format in `sprintf`
How should I make a variable format sequence for sprintf?.
int i=2,d=9;
String sf;
sprintf(sf,"%%0%d",i);
fprintf(sf,d);
While expecting the output.
09
The compilation fails, with several errors, according the failing change I apply.
Invalid cast…
Brethlosze
- 337
- 3
- 17
0
votes
1 answer
printf %s gives gibberish
This Code:
String S0 = "";
String S1 = "1";
String S2 = "12";
String S3 = "123";
String S4 = "1234";
String S5 = "12345";
String S6 = "123456";
String S7 = "1234567";
String S8 = "12345678";
String S9 = "123456789";
String S10 = "1234567890";
String…
AKTanara
- 191
- 6