- added registry for print_context classes (use print_context_class_info::dump_hierar...

[ginac.git] / ginac / inifcns.cpp

diff --git a/ginac/inifcns.cpp b/ginac/inifcns.cpp
index 7b9a0c68d3e5f7e0f75027a3a6b38aacc08b3dc7..e9c93938cfebfe0a4405e79e5a2dad5eced2cacd 100644 (file)
--- a/ginac/inifcns.cpp
+++ b/ginac/inifcns.cpp
@@ -59,8 +59,21 @@ static ex abs_eval(const ex & arg)
                return abs(arg).hold();
 }
 
+static void abs_print_latex(const ex & arg, const print_context & c)
+{
+       c.s << "{|"; arg.print(c); c.s << "|}";
+}
+
+static void abs_print_csrc_float(const ex & arg, const print_context & c)
+{
+       c.s << "fabs("; arg.print(c); c.s << ")";
+}
+
 REGISTER_FUNCTION(abs, eval_func(abs_eval).
-                       evalf_func(abs_evalf));
+                       evalf_func(abs_evalf).
+                       print_func<print_latex>(abs_print_latex).
+                       print_func<print_csrc_float>(abs_print_csrc_float).
+                       print_func<print_csrc_double>(abs_print_csrc_float));
 
 
 //////////