Function ion_c_sys::ion_reader_read_long

pub unsafe extern "C" fn ion_reader_read_long(
    hreader: hREADER, 
    p_value: *mut c_long
) -> iERR

Read integer value from Ion stream. The size of the integer is sizeof(long), which is 4 or 8 bytes depends on the OS If the value in the Ion stream does not fit into the variable, it will return with IERR_NUMERIC_OVERFLOW.