lines 68-108 of file: lib/cplusplus/vector.xrst

{xrst_begin vector_size}
{xrst_spell
   bool
}


Size of a Vector
################

Syntax
******
*n* = *v*\ ``.size`` ()

v
*
The object *v* has one of the following prototypes:

| |tab| ``const vec_bool&`` *v*
| |tab| ``const vec_int&`` *v*
| |tab| ``const vec_double&`` *v*
| |tab| ``const vec_a_double&`` *v*

n
*
The result has c++ prototype

| |tab| ``size_t`` *n*

i.e., it is a positive integer.
Its value is the number of elements in the vector *v* .

{xrst_toc_hidden
   example/cplusplus/vector_size_xam.cpp
   example/python/core/vector_size_xam.py
}
Example
*******
:ref:`c++<vector_size_xam.cpp-name>`,
:ref:`python<vector_size_xam.py-name>`.

{xrst_end vector_size}