Date: 2010may13
Language: C/C++
Q. How can I delete an element from an array in C/C++ ?
A. Here is an example of a function that can do it:
inline void DeleteArrayElement(THING a[], const int i, const int n)
{
memmove(&a[i], &a[i+1], (n - i - 1) * sizeof(THING));
}
void ExampleUse()
{
THING my_things[20]; // Declare the array
// ...
// put some stuff into the array
// ...
// Delete element 5
DeleteArrayElement(a, 5, sizeof(my_things) / sizeof(my_things[0]));
}
Use erase() to delete an element from an STL vector (which is a growable array).
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