将char *转换为标准C中的float/int [英] Convert char* to float / int in standard C

问题描述

我正在使用纯C语言编写程序，我想知道如何将char*转换为float/int.我知道ato?函数，但我所期望的还不止于此.我正在寻找int str2float(char*, float*)/int str2int(char*, int*)之类的函数，它们会返回给定的char*是否可以是合法的数字格式.
如果将普通的"0.0"或"something_else"传递给atof，我会得到一个0.0；如果我将"3.14"或"3.14balabala"传递给它，则会得到一个3.14，那将是非常糟糕的对我来说.

Hi,
I''m working on a program in pure C, and I''m wondering how could I convert a char* to float / int. I know the ato? functions but what I expect is more than that; I''m looking for functions maybe like int str2float(char*, float*) / int str2int(char*, int*) which they return whether the given char* could be a legal numeric format.
I would get a 0.0 if I passed a normal "0.0" or a "something_else" to atof, and get a 3.14 if I passed a "3.14" or a "3.14balabala" to it, that would be terrible for me.

推荐答案

请参阅这些 [ ^ ]函数，我认为他们会按照您的要求去做.

See these[^] functions, I think they will do what you are asking.

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