字符串转整型

Posted on Edited on Word count in article: 208 Reading time ≈ 1 mins.

由字符串转为int型…

int strToInt(const char * c)
{
if(c == NULL)
throw “NULL point…”;
int sum = 0;
int n = 10;
int flag = 1;
while(*c)
{
if(*c == ’ '||*c == ‘+’)
{
c++;
continue;
}
if(*c == ‘-’)
{
flag = -1;
c++;
continue;

}
sum *= n;
sum += c-‘0’;
c++;
}
return sumflag;
}