From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001 From: Joseph Hunkeler Date: Wed, 8 Jul 2015 20:46:52 -0400 Subject: Initial commit --- sys/fmtio/xtoc.x | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 sys/fmtio/xtoc.x (limited to 'sys/fmtio/xtoc.x') diff --git a/sys/fmtio/xtoc.x b/sys/fmtio/xtoc.x new file mode 100644 index 00000000..8315b4cd --- /dev/null +++ b/sys/fmtio/xtoc.x @@ -0,0 +1,39 @@ +# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + +# XTOC -- Encode a complex number as a character string in a field width of +# at most WIDTH characters. + +int procedure xtoc (xval, outstr, maxch, decpl, fmt, width) + +complex xval # value to be formatted +char outstr[ARB] # output string +int fmt # format encoding (f,e,etc.) +int maxch # max chars out +int decpl # precision +int width # field width + +int op, dtoc() +double real_part, imag_part +define output {outstr[op]=$1;op=op+1;if(op>maxch)goto overflow_} +define overflow_ 91 + +begin + if (IS_INDEFX (xval)) { + real_part = INDEFD + imag_part = INDEFD + } else { + real_part = real (xval) + imag_part = aimag (xval) + } + + op = 1 + output ('(') + op = op + dtoc (real_part, outstr[op], maxch-op+1, decpl, fmt, width) + output (',') + op = op + dtoc (imag_part, outstr[op], maxch-op+1, decpl, fmt, width) + output (')') + +overflow_ + outstr[op] = EOS + return (op-1) +end -- cgit