Convert char * to short and char

Question

char * x="a"; how would i convert it to char y='a';

also if i have a short char * a="100" how can i convert it to short b=100

thanks

If your question has been answered and you have another question, accept the answer here and ask your next question as a new question. — Pete Kirkham, Jul 09 '10 at 06:59
By the way you should probably never use the `short` type unless you have a really good reason. It's likely to be slow and has no benefits unless you're making a huge array of numbers that all fit in `short`, but then it would probably be better to use a specific-size type like `int16_t`. — R.. GitHub STOP HELPING ICE, Jul 09 '10 at 08:16

score 5 · Accepted Answer · edited May 23 '17 at 11:58

5

char * x = "a";
char y = *x; //or x[0]


char * a = "100";
short b = atoi(a);

Note that assigning return value of atoi to a short might lead to overflow.

Also read why strtol is preferred over atoi for string to number conversions.

edited May 23 '17 at 11:58

Community

answered Jul 09 '10 at 06:39

Amarghosh

score 1 · Answer 2 · answered Jul 09 '10 at 06:40

1

Assuming that's all you wanted to do and didn't care about error checking:

char y= *x;
short b= atoi(a);

answered Jul 09 '10 at 06:40

MSN

score 0 · Answer 3 · answered Jul 09 '10 at 06:40

0

A char * can be used as an array of chars. To get the first letter, use char y = x[0]
A string can be converted to a number using the function atoi

answered Jul 09 '10 at 06:40

Sjoerd

3 Answers3