- MongoDB C Driver 1.9.3-dev »
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- mongoc_read_prefs_t

# mongoc_read_prefs_copy()

## Synopsis

    mongoc_read_prefs_t *
    mongoc_read_prefs_copy (const mongoc_read_prefs_t *read_prefs);

## Parameters

- `read_prefs`: A mongoc_read_prefs_t.

## Description

This function shall deep copy a read preference.

## Returns

Returns a newly allocated read preference that should be freed with mongoc_read_prefs_destroy().

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