c++ char to Int

I I'm trying to to convert var a to int with this, but dosn't work? is the use of strtol correct? thanks

Code:

---

char * pEnd;
         int num;
	const char* a = "v"; //why with 'v' doesn't compile????
	num = strtol (a, &pEnd, 10);
	cout << " num " << num << endl;	//it print alway 0
	}

---

Quote:

---

Originally Posted by mickey

const char* a = "v"; //why with 'v' doesn't compile????

---

Because 'v' is "char" not "char *".

Quote:

---

Originally Posted by mickey

it print alway 0

---

Did you try to use some valid number (like "1") instead of "v"?

Quote:

---

Originally Posted by jacek

Because 'v' is "char" not "char *".
Did you try to use some valid number (like "1") instead of "v"?

---

yes in that way work (it print 1); but I knew any char has a in value(eg 'a' =16; b='17', B=32). I'd like to obtain that number....maybe I'm doing the wrong question......

Quote:

---

Originally Posted by mickey

any char has a in value(eg 'a' =16; b='17', B=32). I'd like to obtain that number...

---

In that case you don't need any functions:

Code:

---

char c = 'v';
int v = c;

---