diff options
Diffstat (limited to '9p32.cpp')
-rw-r--r-- | 9p32.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/9p32.cpp b/9p32.cpp new file mode 100644 index 0000000..06ea9f1 --- /dev/null +++ b/9p32.cpp @@ -0,0 +1,31 @@ +#include <vector> +#include <iostream> + +/* + * + * 9.32 + * + * Seems very much illegal, at least when using g++. But when compiling with clang++ it seems like it just works... What? + * + * After breaking out gdb and debugging both the clang++ and g++ program it seems like both compilers do different things + * g++ increments the iterator, clang++ (maybe does?) does not increment the iterator. + */ + +int main () { + + std::vector<int> vi = {0,1,2,3,4,5,6,7,8,9}; + auto iter = vi.begin(); + while (iter != vi.end()) { + if (*iter % 2) { + iter = vi.insert(iter, *iter++); + iter += 2; + } else + iter = vi.erase(iter); + } + + for(auto &a : vi) { + std::cout << a << std::endl; + } + + return 0; +} |