Re: Proper way to input a dynamically-allocated string

"Malcolm" <regniztar@xxxxxxxxxxxxxx> writes:
> "Joe Wright" <jwright@xxxxxxxxxxx> wrote
>> #define SSIZE_MAX 2147483647
>> #define INT_MAX 2147483647
>> #define LONG_MAX 2147483647L
>>
>> ..and so see no compelling reason to type anything size_t rather than int.
>>
>> It is interesting to have functions prototyped with size_t parameters to
>> indicate positive values. Otherwise, int works perfectly well for me.
>>
> Take this function
>
> /*
> trivial function that counts number of occurrences of ch in str
> */
> mystrcount(const char *str, int ch)
>
> Now basically this function is alwaysgoing to return small integers.
> However, technically, someone could pass it a massive string, all set to one
> character. Then an int would overflow, if size_t were bigger than an int.
>
> Thus the function must return a size_t.
>
> That means that the higher-level logic which calls it must also be written
> with size_t, and the ugliness propagates

I fail to see what's ugly about it. What's wrong with using size_t to
represent sizes? That's what it's for.

--
Keith Thompson (The_Other_Keith) kst-u@xxxxxxx <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.
.

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