g***j
发帖数: 1275 | 1 f1() is fine since the constructor is not explict. If you declare
explict A(int t){}
f1(5) will not work.
void f2(A& a) takes a non-const parameter, but in f2(5), the parameter is a
constant. It's invalid to convert a const to a non-const.
f3(5) is fine. If you declare
explicit A(int t) {}
f3(5) will not work. |
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t*****x
发帖数: 68 | 2 It really depends on your field. In basic biomedical sciences, a lot of
openings explictly prefer >3years of postdoc.
credit |
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b*****1
发帖数: 1731 | 3 我学了一点皮毛的文化解释。美国是以个人主义文化为主的，中国是集体主义文化的国
家。我的最后的project就是让写这方面文化的。抄一段看看。
Individualistic cultures generally rely on a low-context communication,
which is very explict,detailed, and precise.Because people are regarded as
distinct Individuals, communicators do not assume that others will share
their meanings or values. Instead, everything must be spelled out carefully
and clearly. |
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y**i
发帖数: 1112 | 5 why?
explictly creating an object on stack is also possible |
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e**c
发帖数: 95 | 6 Can implict system destructor do everything? When do we need explictly to define our own destructor?
FYI. |
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w*******x
发帖数: 489 | 7 According to Effective C++ chapter 0:
This is called "Implicit type conversion"
Define the constructor with key word explicit "explict string(const char *)"
will prohibit the implicit type conversion, but you can still do an
explicit type conversion by call func(string("test")). |
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c*******r
发帖数: 610 | 8 最近面了几家公司，上店面经, 攒点人品
amazon
三哥，given a binary matrix， find out the total number of islands， （
geeksforgeeks原题）
跟这里的面经一模一样：http://www.mitbbs.com/article_t/JobHunting/32721661.html
面得很早1月底瑞苦肉特找我就随便面了下，很久没有准备算法了，知道是dfs，但是写
不出来，汗啊，挂了，自此以后努力准备3个月的算法
bloomberg
版上国人大哥内推的，无论如何应该感谢。
国人大哥先要面试我才决定给我内推（可能大哥办事认真）。 内推后另一位国人大哥
面的，虽然
说的是英文，告诉我的是英文名，但是改不了口音，一堆c++问题，好多都忘了，大概
有几道是下面的：
1. c++ pointer/reference, when to use pointer, when to use reference
2. implement linked list. implement copy assignment operator fo... 阅读全帖 |
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z***e
发帖数: 1757 | 9 我理解那是因为头十趴没有explictly用race作为标准，名义上是race-neutral。所以
不需要接受strict scrutiny,所以也不需要compelling interest，所以不需要找
diversity的理由。 |
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q***2
发帖数: 1861 | 10 we talked about this topics about a year ago here already, explictly and
clearly. |
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b***y
发帖数: 14281 | 11 No real difference. In principle, you should prefer margin over cash (not
the other way around!) until you exhaust your margin balance, because
anything in margin is free to trade more frequently than those settled in
cash, and as long as you have enough cash deposit, no margin interest will
be charged. So there is really no reason to put shares in the cash account
when there is still margin balance available. Even if you use cash account
to purchase the stocks, most brokers will automatically t... 阅读全帖 |
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p*******l
发帖数: 2495 | 12 I know "follow-to-join", however, it does not apply here.
See this website
http://www.immihelp.com/greencard/adjustmentofstatus/dependents
It explictly says the derivatives need to submit 485 before principal's 485
is approved.
It is better to be safe than sorry.
they can apply for consular processing, where they don't need to submit I-
130 form (to try to get a visa number, similar to I-140 form), nor should
they submit I-485 form. I-485 form is for people who are in US to adjust
status.
spous... 阅读全帖 |
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s***n
发帖数: 812 | 13 很受启发，不过问题这么大，我无力handle，可以具体讲出来娱乐得一条：
“故天将降大任于斯人也，必先苦其心志，劳其筋骨，饿其体肤，空乏其身，行拂乱其所
为，所以动心忍性，曾益其所不能。
……. 然后知生于忧患而死于安乐也。”
这话我从第一次看到就不爽，一直不爽，我脑子不灵，除了个人个性审美倾向之外，思
考问题还需要explict得摆明所有causality，因此自然问，这什么逻辑？相比之下，老
子只说天道，高者抑之，下者举之。有馀者损之，不足者补之。除了教我很不爽，倒不
会追问，至多对照下确定了我大概正处在mit joke版得水平，所谓“更高，更富，更帅
”！
仍然关于逻辑，我见过很少一些作工程得人（孤陋寡闻不大认识文科、理科得，惭愧）
虽然用逻辑工具，一旦离开工作，却没有什么逻辑自觉。这种不成熟，虽然本身似乎缺
乏深入讨论得intellecutal merits，但确实大大降低了做人本来就很少得快感。 |
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l**s
发帖数: 20567 | 14 Post By：4/17/2013 9:25:00 AM
以下是引用mygodoh在4/17/2013 5:51:00 AM的发言：
2006年2月25日 童宇峰与薛钢通过电子邮件讨论朱令案件。其中涉及不少案件的细节。
薛指出王琪是当年向警察报告宿舍盗窃案的人。关于吴承之所说“朱令还剩下的面包，
我们几个分了吃了” 的电话，童从王琪处得到的回答是她从来没有接到过那样的电话
。而金亚没有回答童这个问题。薛的说法是他明确问过金亚关于面包被分吃的电话。而
金亚称她从来没有听说过。薛钢否认他当年曾经说过“就是因为这件事（朱令案），我
们才没得到优秀毕业班” 的传闻。童问薛关于薛在宿舍盗窃案后到过现场的传闻，薛
明确否认。该邮件不久被别有用心的人在网上曝光。童宇峰称在网上公布的邮件涉及两
处恶意篡改。
好吧，这件事情的完整版本是这样的：（其实我也不想贴这么大段的东西，相信很多人
都看过很多遍了）
http://woodinwind.wordpress.com/
[2006-03-05] 不安的咖啡 — 对于邮件门事件的分析，请各位指正
Posted by woodinwind on Mar... 阅读全帖 |
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c**t
发帖数: 2744 | 15 Checked gmail, the js event handlers are not explictly implemented?
How does G$ do that? attach behaviour to id? like htc does? but it's in FF!
This is a very interesting Q. Does anybody know? |
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y*****g
发帖数: 2 | 16 in VB?
Like the explicit type cast operator in C#.
Thanks. |
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y*****g
发帖数: 2 | 18 I meant "how to define", not how to cast.
CType will throw exception if it couldn't find the definition of the
conversion function. My question is where a way to write such definitions. |
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d****p
发帖数: 685 | 19 I think we are gonna start a tricky discussion :-)
The lifetime of a temporary is ended when the expression generating the
temporary is evaluated.
So,
Foo const& foo = static_cast(Foo()) will yield a dead reference,
pointing to destroyed object (the
foo). Isn't it a programming error?
So never explictly construct a reference to a temporary - doing so will
invalidate the object behind the
reference when the initialization statement completes.
The form DoSthForFoo(Foo()) is valid (supp |
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g*********s
发帖数: 1782 | 20 this is my solution casting an unsigned int to an int. but gcc gives me
warning:
string_api.cpp: In function ‘bool overflow(unsigned int, bool, char)’:
string_api.cpp:330: warning: integer overflow in expression
string_api.cpp: In function ‘int str2int(const char*)’:
string_api.cpp:346: warning: integer overflow in expression
explict type casting can fix the warning. but i don't like this solution
very much. anyone has a better alternative?
static
bool overflow(unsigned int val, bool negative, c... 阅读全帖 |
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m*******e
发帖数: 20 | 21 (i) (MATHEAD *)(a)-1 means you explictely convert pointer "a" into a MATHEAD
type pointer("a" is very likely to be a void* pointer originally), and then
make the pointer point to the memory place immediately before the current
place it does.
(ii) Not very sure about your second question. Actually I think such macro
does not make any sense...Well hope somebody can give out a more precise
answer. |
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r*g
发帖数: 186 | 22 to AlphaCode 你看看我理解的对不对
感觉我这种半路出家的半吊子学C++坑太多了
以前认为C很多坑
现在觉得C++不仅继承了C的坑, 还挖了很多新的坑
我发现我C++的很多基本概念还没弄明白
常年把C++当C在用
// 所以不会有任何问题
// 首先: 根据链接:
http://en.cppreference.com/w/cpp/language/explicit
解释:
explicit operator type ( ) (since C++11)
specifies that this user-defined conversion function is only considered f
or direct initialization (including explicit conversions)
所以explicit operator S(){return S(m);}这个用户自定义转换函数只能用于direct
init,但是这里S s1 = ss; 不是direct init而是copy init:
我臆测为什么不是direct init:
因为direc... 阅读全帖 |
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r*g
发帖数: 186 | 23 标准中说引入explicit是为了抑制意料之外的隐士类型转换
这个东西来自于C, 在C++中继承了这一特性
但是就挖出了这么多坑
最开始explict Constructor(other)
是为了抑制其他other2 先转换为other再调用
Constructor(other)
引入operator other()的目的是有时候other类是使用者无法修改的
比如是一些闭源的代码
这时候other2类中加入operator other()的自定义转换函数就能使得
从other可以转换到other2 other2也能转换到other
作为一种"对称". (我参考的原帖下面reference中解释)
但是引入了这个东西后
就使得影视类型转化变得更加复杂
于是又引入了explicit operator other()的概念
........ |
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a******t
发帖数: 100 | 24
I think what he said is true. But we do not have to worry about it. Because
it is explictly stated that only 56 bits in the 64 bits key are useful. Also,
there are some weak keys.
Since single DES is not as secure as we need, people begun to use 3DES. |
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h********r
发帖数: 821 | 25 算符A作用于函数f得到函数g，如果你重新定义了f，仍然得到g，这样等于重新定义了
算符A，这是由算符的映射性质得来的。
你去看看explictly correlated method的资料吧，out of my comfortale zone，不敢
多说。
无穷级数展开在实际中就是一种近似技术，需要截断。在数学上r12就是没有办法在有
限项内实现变量分离。如果你用无穷多项去做，抛开收敛性质不管，这已经远不是当初
定义的slater行列式了。
我想问题已经很清楚，此楼也已经歪太多，我们都歇了吧。
+y
1 |
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C*S
发帖数: 1658 | 26 1. Typically PhD degree is required only for faculty SE position.
2. Very few, if any, structural firms that explictly look for SE PhDs.
3. SE PhDs do find jobs in structural firms, usually at a level that require
only MS degree at most.
4. There does exist some firms that, at least in their advertisement, prefer
(or do not discourage) PhD applicants. Personally I do not know if this is
really the case or only a faked advertisement for someone's green card application.
The following are some fir... 阅读全帖 |
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c*******h
发帖数: 1096 | 27 seems that the package is designed for eigen problem and does not
have convenient interface for svd.
for a retangular matrix A, i have to either solve the eigen problem
of AA' or [0 A'; A 0]. The former way requires explictly forming the
matrix AA', which destroys the sparsity. The latter way results in
much larger arnoldi vectors and probably many more iterations.
please correct me if i misunderstood the usage of this package. |
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d***i
发帖数: 19 | 28 I think there is a law, or at least regulation says that the medical
service providers can't charge you for service out of your insurance
coverage, unless they explictly informed you the charge prior to the service
. In your case, the doctor didnt' notify you(in formal ways) that the
freqent check-ups were not covered by your policy, then he had no right to
charge after the service.
I might be able to get more detail info later(I'm working in healthcare
industry) if you need.
care |
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B********e
发帖数: 10014 | 29 directly use maple
or make substitution first then check the table you can get an
'answer'
in any case, it include special function, which i don't think it can be call
ed an explict analytical solution |
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v*k
发帖数: 57 | 30 Boltzmann输运方程能不能explictly写成有
j_diffusion=- D grad n
这一项的这种形式?
Boltzmann貌似是单粒子的近似,所以这样写有困难?
如果我想在最后有包含grad n这种形式的,
能从Boltzmann方程开始推吗?
谢谢! |
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n******e
发帖数: 140 | 31 How does it feel like to grow into a God.
Why is that, prophets, no matter from which variety of religions or school of thoughts, inevitably grew detached after the enlightenment? They all make passing reference to the triviality of human race, their serene expressions and monotonous voices full of explictly implied scorns. Yes, they all came back to teach, but as if out of embarassment of being the only one who knew, merely to go through the necessary motion of spreading the wealth which they k |
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a***n
发帖数: 5665 | 32 u can at least ask for his decision explictly.... |
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