Function uikit_sys::CGFontCreatePostScriptSubset

pub unsafe extern "C" fn CGFontCreatePostScriptSubset(
    font: CGFontRef, 
    subsetName: CFStringRef, 
    format: CGFontPostScriptFormat, 
    glyphs: *const CGGlyph, 
    count: size_t, 
    encoding: *const CGGlyph
) -> CFDataRef