Namespaces
Namespaces allow us to use the same name for different functions or variables in different contexts without causing
ambiguity. For example, consider two material models: metal and rubber. Both may have a function named execute.
Without namespaces, defining these functions with the same name in a global scope would lead to a naming conflict.
By placing execute within respective namespaces, we can easily tell them apart.
Namespaces are a powerful tool that enables us to define multiple functions or variables with the same name without causing ambiguity. This is particularly useful when working with different material models, such as metal and rubber, which may share common functionality but require distinct implementations.
For instance, consider two material models: mat_metal and mat_rubber, each of which might have a function named execute.
Without namespaces, defining these functions in the global scope would result in a naming conflict, and compilation
errors.
By placing the execute function within its respective namespace, we can easily differentiate between the two
implementations. This not only improves code organization and maintainability but also reduces the likelihood of bugs
and errors.
namespace user_metal
{
void execute()
{
}
} // namespace user_metal
namespace user_rubber
{
void execute()
{
}
} // namespace user_rubber
int function()
{
// Call metal execution
user_metal::execute();
// Call rubber execution
user_rubber::execute();
}