I had installed VS2005 and VS2008 on Vista Business, both work fine. But today, I found .sln file icon losted and cannot open it with double-click. So I associate .sln with Visual Studio Version Selector, it works again, but the file icon is incorret.
I spent all the afternoon to make a ton of mistakes, the final solution is: associate .sln with <osroot>\Program Files\Common Files\microsoft shared\MSEnv\VSLauncher.exe.
The headache had been resolved, but I cannot find the reality. The conclusion is more bigger and more danger.
Let me tell you why you are here. You have come because you know something. What you know you can't explain but you feel it. You've felt it your whole life, felt that something is wrong with the world. You don't know what, but it's there like a splinter in your mind, driving you mad. It is this feeling that brought you to me. Do you know what I'm talking about?
12/26/2007
12/25/2007
Pseudorandom number generation enhanced in VS2005
1. Define the _CRT_RAND_S macro before the #include <stdlib.h> .
2. Does not need call srand function to generate the seed.
3. rans_s now has returned value which is type of errno_t, zero if successful.
4. Use this formula: dst_num = (unsigned int)((double)rand_num / (double)UINT_MAX * rand_max + rand_min) to specify the range[rand_min, rand_max] .
2. Does not need call srand function to generate the seed.
3. rans_s now has returned value which is type of errno_t, zero if successful.
4. Use this formula: dst_num = (unsigned int)((double)rand_num / (double)UINT_MAX * rand_max + rand_min) to specify the range[rand_min, rand_max] .
12/24/2007
程序员版<东邪西毒>
1. 每个programer都会经过这个阶段，见到一个program，就想知道program后面是什么。我很想告诉他，可能debug到program后面，你会发现没什么特别。回望之下，可能会觉得这一边更好。但我知道他不会听，以他的性格，自己不debug过又怎会甘心？
2. 去一个没去过的地方，希望可以闯出一个名堂，如果你以后在江湖上听到一个从不debug的英雄，那么一定是我。
3. 其实写一个program不是很容易，不过为了生活，很多人都会冒这个险。
4. 我很奇怪为什么会有C#，Anders Hejlsberg说人最大的烦恼就是记性太好。如果什么都可以忘了，以后的每一天都将会是一个新的开始。你说，那多开心。
5. 你知道programming和debugging的区别吗？debug越debugging越暖，program会越programming越寒。
6. 也许太久没有看program了，翌年的春天，我去了那人（Bill.Gates）的公司，我觉得很奇怪，那里根本没有program。
7. 他虽然是一个落泊的programer，但他的生活很有规律，每天都会来这里喝一杯酒，吃两碗饭，到月亮下山的时候他就会走。
8. 今年五黄临太岁，到处都是newbie。有newbie的地方一定有麻烦，有麻烦......，那我就有生意。我叫JoeM，我的职业就是帮助别人解除烦恼。
9. 在我出道的时候，我认识了一个人。因为他喜欢在computer边出没，所以很多年之后，他有个绰号叫Newbie。
This post is migrated from <Holy Joe's csdn blog at 9/28/2005>.12/16/2007
A small example of compute Fibonacci's formula statically in C++
How to implement a algorithm computing Fibonacci's formula statically in C++? If it can be done then the more efficient code will be produced. OK, look the a small example below.
template<unsigned int N>
struct Fibonacci {
template<>
struct Fibonacci<1> {
template<>
struct Fibonacci<2> {
int main(int argc, char *argv[]) {
template<unsigned int N>
struct Fibonacci {
static unsigned int const value = Fibonacci<N-1>::value + Fibonacci<N-2>::value;
};template<>
struct Fibonacci<1> {
static unsigned int const value = 1u;
};template<>
struct Fibonacci<2> {
static unsigned int const value = 2u;
};int main(int argc, char *argv[]) {
unsigned int v3 = Fibonacci<3>::value;
unsigned int v9 = Fibonacci<9>::value;
return (0);
}unsigned int v9 = Fibonacci<9>::value;
return (0);
12/11/2007
A sealed class in C++
I want a 'sealed' class in native C++ just like 'sealed' in C++/CLI and C# or 'final' in Java. I googled it then got following solution.
template<typename T>
class DeriveLock {
private:
class SealedClass : virtual public DeriveLock<SealedClass> {
};
You can found above sample code at Bjarne Stroustrup's article.
template<typename T>
class DeriveLock {
private:
DeriveLock() {}
~DeriveLock() {}
friend T;
};~DeriveLock() {}
friend T;
class SealedClass : virtual public DeriveLock<SealedClass> {
};
You can found above sample code at Bjarne Stroustrup's article.