rb_gzreader_getc  208 ext/zlib/zlib.c static VALUE rb_gzreader_getc(VALUE);
rb_gzreader_getc 3862 ext/zlib/zlib.c     dst = rb_gzreader_getc(obj);
rb_gzreader_getc 3915 ext/zlib/zlib.c     while (!NIL_P(c = rb_gzreader_getc(obj))) {
rb_gzreader_getc 4519 ext/zlib/zlib.c     rb_define_method(cGzipReader, "getc", rb_gzreader_getc, 0);