# bson_iter_overwrite_int64()

## Synopsis

    void
    bson_iter_overwrite_int64 (bson_iter_t *iter,
                               int64_t      value);

## Parameters

iter | A bson_iter_t.
value | A int64_t.

## Description

The bson_iter_overwrite_int64() function shall overwite the contents of a BSON_TYPE_INT64 element in place.

This may only be done when the underlying bson document allows mutation.

It is a programming error to call this function when iter is not obvserving an element of type BSON_TYPE_INT64.