tst 151 gtags-cscope/mypopen.c myside = tst(p[WTR], p[RDR]); tst 152 gtags-cscope/mypopen.c yourside = tst(p[RDR], p[WTR]); tst 162 gtags-cscope/mypopen.c stdio = tst(0, 1);