??? i m confused - 未名空间MITBBS历史存档

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??? i m confused

??? i m confused# Programming - 葵花宝典

c*e2005-05-09 07:05

1 楼

according to BS, if a function has a return value non-void, it must return
sth in its definition.
however, the following code compile with Gcc/VC 7.1
int func (void) {}
why?

c*e2005-05-09 07:05

2 楼

seems not the case for gcc 3.3

【在 c********e 的大作中提到】

: according to BS, if a function has a return value non-void, it must return
: sth in its definition.
: however, the following code compile with Gcc/VC 7.1
: int func (void) {}
: why?

g*g2005-05-09 07:05

3 楼

Because C++ is a pain in the butt itself.
It's never a strong type language which an OOL should be.

r*y2005-05-09 07:05

4 楼

If you use the return value, such like
cout << func();
compiler will report error.
If func() is a global function, VC compiler will report error too.
For member function, ok if return value not used.

【在 c********e 的大作中提到】

: according to BS, if a function has a return value non-void, it must return
: sth in its definition.
: however, the following code compile with Gcc/VC 7.1
: int func (void) {}
: why?