CHAR AND DOUBLE FUNCTION IN MATLAB

5 visualizzazioni (ultimi 30 giorni)
Raza
Raza il 1 Ott 2014
Commentato: José-Luis il 1 Ott 2014
How to see the function coding in matlab that uses char to convert decimal valuein to respective ascii character and uses double to convert character into respective ascii decimal value

Risposte (1)

Guillaume
Guillaume il 1 Ott 2014
You can't, it's a built-in function of matlab, not an m-file. Most likely it's written in C, and the implementation is trivial in C, it's just a cast.
  6 Commenti
Guillaume
Guillaume il 1 Ott 2014
Modificato: Guillaume il 1 Ott 2014
The OP asked about 'double to convert into respective ascii decimal value', that is in matlab:
d = 65; %is a double in matlab
c = char(d);
That is a simple cast in C:
double d = 65;
char c = (char)d; //c == 'A';
And actually, the reverse doesn't even need a cast. It's just an implicit conversion:
char c = 'A';
double d = c; //d == 65.0
José-Luis
José-Luis il 1 Ott 2014
Maybe. I did not interpret the OP's original question like that though, so we might be arguing over nothing until he clarifies.
It might be good to clarify, as you sort of did, that char is not really an absolute type, as its size can change depending on the implementation. It is an integer in disguise. If you take it like that, then yes, it is trivial (in application if not in implementation).
If not, then my comment remains valid.

Accedi per commentare.

Categorie

Scopri di più su Data Type Conversion in Help Center e File Exchange

Tag

Non è stata ancora inserito alcun tag.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by