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C, how is a string cast into a int?

C, how is a string cast into a int?# Programming - 葵花宝典

M*m2008-05-05 07:05

1 楼

char *a = "12";
int j = (int)a;
j is 134514482, what is going on here? how does c convert "12" to this
number?

M*m2008-05-05 07:05

2 楼

is 134514482 the address of a?

【在 M*m 的大作中提到】

: char *a = "12";
: int j = (int)a;
: j is 134514482, what is going on here? how does c convert "12" to this
: number?

P*e2008-05-05 07:05

3 楼

int j = atoi(a);

char *a = "12";
int j = (int)a;
j is 134514482, what is going on here? how does c convert "12" to this
number?

【在 M*m 的大作中提到】

: char *a = "12";
: int j = (int)a;
: j is 134514482, what is going on here? how does c convert "12" to this
: number?

M*m2008-05-05 07:05

4 楼

Looks like j is the address of the string. but here is another problem.

int main(){

char *a = "12";

int t = (int)a;

printf ("%d\n", t);

printf("%c\n", *((char *)t

【在 P********e 的大作中提到】

: int j = atoi(a);
:
: char *a = "12";
: int j = (int)a;
: j is 134514482, what is going on here? how does c convert "12" to this
: number?

M*m2008-05-05 07:05

5 楼

Oops, just found the problem. never mind, it is the address.

【在 M*m 的大作中提到】

: Looks like j is the address of the string. but here is another problem.
:
:
: int main(){
:
: char *a = "12";
:
: int t = (int)a;
:
: printf ("%d\n", t);