8、 String to Integer (atoi)

Implement atoi to convert a string to an integer.

Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and ask yourself what are the possible input cases.

Notes: It is intended for this problem to be specified vaguely (ie, no given input specs). You are responsible to gather all the input requirements up front.

atoi是将字符串转化为整形数的一个函数：char *str = "12345.67"; n = atoi(str); n=12345。

先放着。不想做

8、 String to Integer (atoi)

原文：http://www.cnblogs.com/hozhangel/p/7751071.html