大约有 641 项符合查询结果（耗时：0.0091秒） [XML]
Evil Mode best practice? [closed]
...r years and tried Emacs several times during that time. Then I discovered Evil and decided that it meets my demand for speedy movement well enough that I can finally move on to Emacs.
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When is JavaScript's eval() not evil?
...to take a moment to address the premise of your question - that eval() is "evil". The word "evil", as used by programming language people, usually means "dangerous", or more precisely "able to cause lots of harm with a simple-looking command". So, when is it OK to use something dangerous? When you k...
Is assert evil? [closed]
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No, neither goto nor assert are evil. But both can be misused.
Assert is for sanity checks. Things that should kill the program if they are not correct. Not for validation or as a replacement for error handling.
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Are database triggers evil? [closed]
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Tools are never evil.
Applications of those tools can be evil.
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Is the practice of returning a C++ reference variable evil?
...t() {
int i;
return i; // DON'T DO THIS.
}
That is all sorts of evil. The stack-allocated i will go away and you are referring to nothing. This is also evil:
int& getInt() {
int* i = new int;
return *i; // DON'T DO THIS.
}
Because now the client has to eventually do the st...
Why exactly is eval evil?
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eval (in any language) is not evil in the same way that a chainsaw is not evil. It is a tool. It happens to be a powerful tool that, when misused, can sever limbs and eviscerate (metaphorically speaking), but the same can be said for many tools in a pro...
Why are mutable structs “evil”?
... on SO I already read several times the remark that mutable structs are “evil” (like in the answer to this question ).
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Assignment in an if statement
...part of an if statement1. The closest approach I can think of is this:
// EVIL EVIL EVIL. DO NOT USE.
for (Dog dog = animal as Dog; dog != null; dog = null)
{
...
}
That's just nasty... (I've just tried it, and it does work. But please, please don't do this. Oh, and you can declare dog using ...
Why are global variables evil? [closed]
...xamples:
Global Variables Are Bad - Wiki Wiki Web
Why is Global State so Evil? - Software Engineering Stack Exchange
Are global variables bad?
If you want to go deeper and find out why side effects are all about, and many other enlightening things, you should learn Functional Programming:
Side...
Why are these constructs using pre and post-increment undefined behavior?
...s what I get on my machine, together with what I think is going on:
$ cat evil.c
void evil(){
int i = 0;
i+= i++ + ++i;
}
$ gcc evil.c -c -o evil.bin
$ gdb evil.bin
(gdb) disassemble evil
Dump of assembler code for function evil:
0x00000000 <+0>: push %ebp
0x00000001 <+1>:...