rb_econv_close   1763 ext/zlib/zlib.c 	rb_econv_close(gz->ec);
rb_econv_close    230 include/ruby/encoding.h void rb_econv_close(rb_econv_t *ec);
rb_econv_close   3179 io.c                   rb_econv_close(fptr->readconv);
rb_econv_close   3192 io.c                   rb_econv_close(fptr->writeconv);
rb_econv_close   3613 io.c                   rb_econv_close(fptr->readconv);
rb_econv_close   3617 io.c                   rb_econv_close(fptr->writeconv);
rb_econv_close    509 string.c           rb_econv_close(ec);
rb_econv_close    885 transcode.c                rb_econv_close(ec);
rb_econv_close   1019 transcode.c                rb_econv_close(ec);
rb_econv_close   1509 transcode.c        rb_econv_close(ec);
rb_econv_close   1516 transcode.c        rb_econv_close(ec);
rb_econv_close   2167 transcode.c            rb_econv_close(ec);
rb_econv_close   2176 transcode.c        rb_econv_close(ec);
rb_econv_close   2231 transcode.c                rb_econv_close(ec);
rb_econv_close   2246 transcode.c        rb_econv_close(ec);
rb_econv_close   2382 transcode.c                rb_econv_close(ec);
rb_econv_close   2659 transcode.c        rb_econv_close(ec);