#46: added command default

src/rpn-cmd.h

@@ -17,6 +17,7 @@ program::keyword_t program::_keywords[] =
     { cmd_keyword, "version", &program::rpn_version, "show rpn version" },
     { cmd_keyword, "uname", &program::rpn_uname, "show rpn complete identification string" },
     { cmd_keyword, "type", &program::type, "show first stack entry type" },
+    { cmd_keyword, "default", &program::rpn_default, "setting precision, float representation, float precision, binary mode and verbosity to default" },
 
     //REAL
     { cmd_undef, "", NULL, "\nREAL"},

src/rpn-general.h

@@ -28,8 +28,7 @@ void help()
     cout<<endl;
 
     // description
-    cout<<description<<mpfr_get_version()<<description_more;
+    cout<<description<<endl<<endl;
-    cout<<endl<<endl;
 
     // syntax
     cout<<syntax<<endl;
@@ -186,3 +185,8 @@ void type()
     symbol* sym = (symbol*)allocate_back(size, cmd_symbol);
     sym->set(cmd_type_string[type], string_size);
 }
+
+void rpn_default()
+{
+    program::apply_default();
+}

src/rpn.cpp

@@ -68,6 +68,7 @@ typedef enum {
     ret_unknown_err,
     ret_missing_operand,
     ret_bad_operand_type,
+    ret_out_of_range,
     ret_unknown_variable,
     ret_internal,
     ret_deadly,
@@ -80,7 +81,7 @@ typedef enum {
 } ret_value;
 
 const char* ret_value_string[ret_max] = {
-    "ok", "unknown command", "missing operand", "bad operand type", "unknown variable", "internal error, aborting",
+    "ok", "unknown command", "missing operand", "bad operand type", "out of range", "unknown variable", "internal error, aborting",
     "deadly", "goodbye", "not implemented", "no operation", "syntax", "division by zero"
 };
 
@@ -152,7 +153,7 @@ struct floating_t
     {
         return mpfr_cmp(&mpfr, &right.mpfr) < 0;
     }
-} __attribute__((packed));
+};
 
 class program;
 class object;
@@ -162,7 +163,7 @@ typedef void (program::*program_fn_t)(void);
 typedef union
 {
     program_fn_t _fn;
-} __attribute__((packed)) operand;
+} operand;
 typedef int (program::*branch_fn_t)(branch&);
 
 //
@@ -173,7 +174,7 @@ struct object
 
     //
     void show(ostream& stream = cout);
-} __attribute__((packed));
+};
 
 struct number : public object
 {
@@ -243,7 +244,7 @@ struct number : public object
     // precision
     static int s_default_precision;
     static int s_current_precision;
-} __attribute__((packed));
+};
 
 number::mode_enum number::s_default_mode = number::std;
 number::mode_enum number::s_mode = number::s_default_mode;
@@ -271,7 +272,7 @@ struct binary : public object
     } binary_enum;
     static binary_enum s_default_mode;
     static binary_enum s_mode;
-} __attribute__((packed));
+};
 binary::binary_enum binary::s_default_mode = binary::dec;
 binary::binary_enum binary::s_mode = binary::s_default_mode;
 
@@ -296,7 +297,7 @@ struct ostring : public object
     //
     unsigned int _len;
     char _value[0];
-} __attribute__((packed));
+};
 
 struct oprogram : public object
 {
@@ -319,7 +320,7 @@ struct oprogram : public object
     //
     unsigned int _len;
     char _value[0];
-} __attribute__((packed));
+};
 
 struct symbol : public object
 {
@@ -344,7 +345,7 @@ struct symbol : public object
     bool _auto_eval;
     unsigned int _len;
     char _value[0];
-} __attribute__((packed));
+};
 
 struct keyword : public object
 {
@@ -369,7 +370,7 @@ struct keyword : public object
     program_fn_t _fn;
     unsigned int _len;
     char _value[0];
-} __attribute__((packed));
+};
 
 struct branch : public object
 {
@@ -404,7 +405,7 @@ struct branch : public object
     bool arg_bool;
     unsigned int _len;
     char _value[0];
-} __attribute__((packed));
+};
 
 void object::show(ostream& stream)
 {
@@ -812,6 +813,21 @@ public:
         }
     }
     
+    static void apply_default()
+    {
+        //default float precision, float mode, binary mode, verbosity
+        number::s_mode = number::s_default_mode;
+        number::s_current_precision = number::s_default_precision;
+        binary::s_mode = binary::s_default_mode;
+
+        // format for mpfr_printf 
+        stringstream ss;
+        ss << number::s_current_precision;
+        s_mpfr_printf_format = s_mpfr_printf_format_beg + ss.str() + s_mpfr_printf_format_std;
+
+        g_verbose = 0;
+    }
+
 private:
     ret_value _err;
     string _err_context;
@@ -883,23 +899,12 @@ private:
     #include "rpn-program.h"
     #include "rpn-trig.h"
     #include "rpn-logs.h"
-} __attribute__((packed));
+};
 
 //keywords declaration
 #include "rpn-cmd.h"
-
 #include "rpn-test-core.h"
 
-//
-static void apply_default(void)
-{
-    //default precision
-    number::s_mode = number::s_default_mode;
-
-    //default binary mode
-    binary::s_mode = binary::s_default_mode;
-}
-
 //
 int main(int argc, char* argv[])
 {
@@ -908,7 +913,7 @@ int main(int argc, char* argv[])
     int ret = 0;
 
     // apply default configuration
-    apply_default();
+    program::apply_default();
 
     // run with interactive prompt
     if (argc == 1)