What does "initializer" mean?

One who, or that which, initializes.

What is a synonym for "initializer"?

Common synonyms include: constructor, constructors.

noun

noun ·Rare ·Advanced level

Noun

1
One who, or that which, initializes.
2
One who, or that which, initializes.; A routine that prepares something for use.
"Since C++11, the auto keyword is used to tell the compiler to deduce the actual type of a variable that is being declared from its initializer."

"Since C++11, the auto keyword is used to tell the compiler to deduce the actual type of a variable that is being declared from its initializer."

From initialize + -er.