Function harfbuzz_sys::hb_ot_math_get_glyph_kerning

pub unsafe extern "C" fn hb_ot_math_get_glyph_kerning(
    font: *mut hb_font_t, 
    glyph: hb_codepoint_t, 
    kern: hb_ot_math_kern_t, 
    correction_height: hb_position_t
) -> hb_position_t