Function SCIPstrToRationalValue 

pub unsafe extern "C" fn SCIPstrToRationalValue(
    desc: *mut c_char,
    value: *mut SCIP_RATIONAL,
    endptr: *mut *mut c_char,
) -> c_uint

extract the next token as a rational value if it is one; in case no value is parsed the endptr is set to @p desc

@return Returns TRUE if a value could be extracted, otherwise FALSE