ans                72 core/ngx_resolver.c     ngx_uint_t ident, ngx_uint_t code, ngx_uint_t nan, ngx_uint_t ans);
ans              1117 core/ngx_resolver.c     ngx_uint_t ident, ngx_uint_t code, ngx_uint_t nan, ngx_uint_t ans)
ans              1186 core/ngx_resolver.c     i = ans;
ans              1276 core/ngx_resolver.c             i = ans;