Definitions
An identifier is a user defined name; variable names are identifiers. Identifiers must not be spelled the same as keywords such as if and while; for example, you cannot create a variable with the name while.
A keyword is a word defined in the C++ language such as if and while. It is illegal to define an identifier such as a variable name that is spelled the same as a keyword.
The C++ standard library is a collection of code defined by the ISO (International Standards Organization) that must be included with every standards-compliant compiler. Unfortunately, as of this writing, there are no completely standards-compliant compilers, but the one on the CD in the back of the book should be close enough for programs you will be writing. ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access