Function argon2i_ctx 

pub unsafe extern "C" fn argon2i_ctx(
    context: *mut argon2_context,
) -> c_int

Argon2i: Version of Argon2 that picks memory blocks independent on the password and salt. Good for side-channels, but worse w.r.t. tradeoff attacks if only one pass is used.

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@param context Pointer to current Argon2 context

@return Zero if successful, a non zero error code otherwise