sundials 0.3.2

Suite of nonlinear and differential/algebraic equation solvers
Documentation 
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use anyhow::{format_err, Result};
use std::os::raw::c_int;

pub(crate) fn check_non_null<T>(ptr: *mut T, func_id: &'static str) -> Result<()> {
    if ptr.is_null() {
        return Err(format_err!(
            "SUNDIALS_ERROR: {}() failed - returned NULL pointer",
            func_id
        ));
    }
    Ok(())
}

pub(crate) fn check_is_success(retval: c_int, func_name: &'static str) -> Result<()> {
    if retval != 0 {
        Err(format_err!(
            "SUNDIALS_ERROR: {}() failed with retval = {}",
            func_name,
            retval
        ))
    } else {
        Ok(())
    }
}