r**u
发帖数: 1567 | 1 Asked during interview.
What is the advantage of using exception over just return error from the
function?
May be a naive question. I am not very familiar with C++ exception. |
S**I
发帖数: 15689 | 2 The C++ Programming Language (3rd Edition) 14.1:
"return an error value," isn't always feasible because there is often no
acceptable "error value." For example, if a function returns an int, every
int might be a plausible result. Even where this approach is feasible, it is
often inconvenient because every call must be checked for the error value.
This can easily double the size of a program. Consequently, this approach is
rarely used systematically enough to detect all errors.
【在 r**u 的大作中提到】
: Asked during interview.
: What is the advantage of using exception over just return error from the
: function?
: May be a naive question. I am not very familiar with C++ exception.
|
r**u
发帖数: 1567 | 3 谢谢。经验还是不够啊，我们工作上都基本不用exception。。。
is
.
is
【在 S**I 的大作中提到】
: The C++ Programming Language (3rd Edition) 14.1:
: "return an error value," isn't always feasible because there is often no
: acceptable "error value." For example, if a function returns an int, every
: int might be a plausible result. Even where this approach is feasible, it is
: often inconvenient because every call must be checked for the error value.
: This can easily double the size of a program. Consequently, this approach is
: rarely used systematically enough to detect all errors.
|
d**********x
发帖数: 4083 | 4 很多地方都不怎么用exception...
所以可以学点java...
【在 r**u 的大作中提到】
: 谢谢。经验还是不够啊，我们工作上都基本不用exception。。。
:
: is
: .
: is
|
n******t
发帖数: 4406 | 5 说实话，他这么写是一回事，别的也就不说了,他真的脑子里面认为用
exception会让代码量变少？？？
每当我看见这种不靠谱的话，我就在怀疑C++的未来如何。
is
.
is
【在 S**I 的大作中提到】
: The C++ Programming Language (3rd Edition) 14.1:
: "return an error value," isn't always feasible because there is often no
: acceptable "error value." For example, if a function returns an int, every
: int might be a plausible result. Even where this approach is feasible, it is
: often inconvenient because every call must be checked for the error value.
: This can easily double the size of a program. Consequently, this approach is
: rarely used systematically enough to detect all errors.
|
m*********t
发帖数: 527 | 6 我觉得不如问问 c++ exception 的 disadvantage 。。。。
http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml#
"We do not use C++ exceptions" |
d****i
发帖数: 4809 | 7 haha, we don't use C++ exceptions either.
【在 m*********t 的大作中提到】
: 我觉得不如问问 c++ exception 的 disadvantage 。。。。
: http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml#
: "We do not use C++ exceptions"
|
