为什么“得到”尚未弃用？ [英] Why "gets" has not been deprecated yet?
问题描述
我们都知道得到标准C库中的函数（
是标准C ++库的一部分）是危险的。它没有提供
边界检查，因此在使用它时很容易覆盖内存，并且
无法保证它不会发生。
因此，我认为令人惊讶的是，这个功能还没有被弃用。
C ++ 98标准保留了它来自C89标准。
C99标准保留了它：-o。
现在，C标准委员会正致力于安全功能（这些<对于C标准库，以_s结尾的
。我不知道他们是否会贬低可怕的获取。即使不是，我认为在下一个C ++标准中弃用它是个好主意，因为
C ++有更好的方法来完成相同的任务（getline） 。期待C ++标准中的安全功能（* _s）早期太多了
，但
摆脱获取不是那么难，不是吗？无论如何，使用它的程序
都会被破坏。此外，C ++已经弃用了C中的其他功能，因为C ++有更好的选择（静态意义是内部链接
和标题以.h结尾）。
意见？这条消息应该发布在comp.std.c ++上吗？
We all know that the "gets" function from the Standard C Library (which
is part of the Standard C++ Library) is dangerous. It provides no
bounds check, so it''s easy to overwrite memory when using it, and
impossible to guarantee that it won''t happen.
Therefore, i think it''s surprising that this function has not been
deprecated.
The C++98 Standard keeps it from the C89 standard.
The C99 Standard has kept it :-o.
Now, the C standard committee is working on safe functions (the ones
that end with "_s") for the C Standard Library. I don''t know if they
are going to deprecate the dreaded "gets". Even if not, i think it
would be a good idea to deprecate it in the next C++ standard, since
C++ has better ways to accomplish the same task (getline). It''s too
early to expect the safe functions (*_s) in the C++ Standard, but
getting rid of "gets" is not that hard, isn''t it? Programs that use it
are broken anyway. Also, C++ has deprecated other features from C just
because C++ has better alternatives (static meaning "internal linkage"
and headers ending in ".h").
Opinions? Should this message be posted on comp.std.c++?
推荐答案
Marcus写道：
意见？这条消息应该发布在comp.std.c ++上吗？
Opinions? Should this message be posted on comp.std.c++?
你可能想把它发布在那里，因为这里的人一般
更多地关注应用，而不是更改/辩论
标准。
小心假设所有使用获取的东西都是
$然而b $ b仍然存在缺陷。 = <
You probably want to post it over there, as people on here generally
focus more on application, and less on changing / debating the
standard.
Be careful with the assumption that all things using gets are
inherantly flawed however. =P
Josh Mcfarlane写道：
Josh Mcfarlane wrote:
小心假设所有使用gets的东西都是
Be careful with the assumption that all things using gets are
inherantly flawed however. =P
好吧，得到调用未定义的行为。
Well, gets invokes undefined behavior.
Rolf Magnus写道：
Rolf Magnus wrote:
好吧，gets会调用未定义的行为。
来自缓冲区溢出？如果没有，还有什么导致未定义的行为？
Well, gets invokes undefined behavior. From a buffer overrun? If not, what else causes the undefined behavior?
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