在這裡,我們將看到一些C和C 程式碼,並嘗試猜測結果。這些程式碼將產生一些運行時錯誤。
1. 除以零的錯誤是未定義的。
#include <iostream> using namespace std; int main() { int x = 10, y = 0; int z = x / y; cout << "Done" << endl; }
Runtime error for divide by zero operation
2. Trying to use uninitialized variable.
#include <iostream> using namespace std; int main() { bool x; if(x == true) cout << "true value"; else cout << "false value"; }
false value (This may differ in different compilers)
3. Trying to access null pointer values.
#include <iostream> using namespace std; int main() { int *ptr = NULL; cout << "The pointer value is: " << *ptr; }
Runtime error for accessing null pointer values
4. Trying to access null pointer values.
#include <iostream> using namespace std; int main() { int array[10]; for(int i = 0; i<=10; i++) { cout << array[i] << endl; } }
Output
Runtime error for accessing item out of bound. Some compiler may return some arbitrary value, not return any error
#include <iostream> using namespace std; int main() { int x = INT_MAX; cout << "x + 1: " << x + 1; }
Output
x + 1: -2147483648 circulate to the minimum number of signed int
#include <iostream> using namespace std; int main() { char *str = "Hello World"; str[2] = 'x'; cout << str; }Output###
Runtime error because we are trying to change the value of some constant variables.####
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