VS2008安全检查

#include <iostream>#include <vector>#include <list>using namespace std;template<typename T1> void show(T1 beg, T1 end);int main(int argc, const char *argv[]){int ia[] = {0, 1, 1, 2, 3, 5,8, 13, 21, 55, 89};vector<int> ivec(ia, ia + 11);list<int> ilist(ia, ia + 11);show(ilist.begin(), ilist.end());for (list<int>::iterator lit = ilist.begin();lit != ilist.end(); ++lit){if (*lit % 2 != 0){lit = ilist.erase(lit);--lit;}}show(ilist.begin(), ilist.end());show(ivec.begin(), ivec.end());for (vector<int>::iterator vit = ivec.begin();vit != ivec.end(); ++vit){if (*vit % 2 == 0){vit = ivec.erase(vit);--vit;//理论上这里并有错，因为为我们并没有对这个无效的地方解引用。VC6.0和g++都没问题，VS2008安全检查太强了//当然我们可以避免这样的写法，采用安全的写法，见下面程序的改写}}show(ivec.begin(), ivec.end());return 0;}/////////////////////////////////////////////////////////////////////////////////template<typename T1>void show(T1 beg, T1 end){T1 tmp = end;--tmp;while (beg != end){if (beg != tmp)cout << *beg++ << " ";elsecout << *beg++ << endl;}}/////////////////////////////////////////////////////////////////////////////////

#include <iostream>#include <vector>#include <list>using namespace std;template<typename T1> void show(T1 beg, T1 end);int main(int argc, const char *argv[]){int ia[] = {0, 1, 1, 2, 3, 5,8, 13, 21, 55, 89};vector<int> ivec(ia, ia + 11);list<int> ilist(ia, ia + 11);show(ilist.begin(), ilist.end());list<int>::iterator lit = ilist.begin();while (lit != ilist.end()){if (*lit % 2 != 0){lit = ilist.erase(lit);}else++lit;}show(ilist.begin(), ilist.end());show(ivec.begin(), ivec.end());vector<int>::iterator vit = ivec.begin();while (vit != ivec.end()){if (*vit % 2 == 0){vit = ivec.erase(vit);}else++vit;}show(ivec.begin(), ivec.end());return 0;}/////////////////////////////////////////////////////////////////////////////////template<typename T1>void show(T1 beg, T1 end){T1 tmp = end;--tmp;while (beg != end){if (beg != tmp)cout << *beg++ << " ";elsecout << *beg++ << endl;}}/////////////////////////////////////////////////////////////////////////////////