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#
# This function is a wrapper around codegen[C]() which returns the
# genenerated code explictly as a Maple string.
#
# Arguments:
# expr = (in) The expression for which code is to be generated.
# ... = (in) Any further arguments are taken as options to be passed
# to codegen[C]()
#
# Results:
# The function returns a maple string of C code.
#
C_str :=
proc(expr::algebraic)
local tempname, str, temp;
# name of temp file
# FIXME: should use process number to ensure uniqueness
tempname := "/tmp/C_str.tmp.c";
# truncate temp file to zero length
fopen(tempname, WRITE);
fclose(tempname);
# generate the code
codegen[C](args, filename=tempname);
# read the code back in
str := "";
while true
do
temp := readline(tempname);
if (temp = 0)
then break;
end if;
str := cat(str, temp);
end do;
fclose(tempname);
# strip off the leading " t0 = "
return op(2,sscanf(str, "%s = %[^;];"));
end proc;
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