Create a vector of the specified initialSize whose every element is a default-constructed object of the (template parameter) type VALUE_TYPE. Optionally specify a basicAllocator used to supply memory. If basicAllocator is not specified, a default-constructed object of the (template parameter) type ALLOCATOR is used. If the type ALLOCATOR is bsl::allocator and basicAllocator is not supplied, the currently installed default allocator is used. Throw std::length_error if initialSize > max_size(). This method requires that the type VALUE_TYPE be default-insertable into this vector (see {Requirements on VALUE_TYPE}). Note that a bslma::Allocator * can be supplied for basicAllocator if the type ALLOCATOR is bsl::allocator (the default).
Declared in <bslstl_vector.h>
explicit
vector(
size_type initialSize,
allocator<unsigned long> const& basicAllocator = ALLOCATOR());