Why does not this kind of parameter initialization?

[ruwan2]

Hi,

 

When I try the following module, I find that the blue color initialization works while the red part is used, it does not work.

 

 

SC_MODULE(mytop)

{

sc_signal<bool> mysig;

sc_clock clk;

myclk mod;

 

SC_CTOR(mytop) : mysig("mysig"), mod("mod"), clk("ccllkk", 20, 0.5)

{

mod.outp(); 

mod.CLK(clk);

}

};

SC_MODULE_EXPORT(mytop);

 

 

..........

SC_MODULE(mytop)

{

                    sc_signal<bool> mysig;

line 7:          sc_clock clk("myclock", 20, 0.5);

                    myclk mod;

 

SC_CTOR(mytop) : mysig("mysig"), mod("mod")

{

mod.outp(); 

mod.CLK(clk);

}

};

SC_MODULE_EXPORT(mytop);

.........

When the above red cannot pas compilation, the error messages are:

 

# 

# clk_g_head.cpp:7: error: expected identifier before string constant

# clk_g_head.cpp:7: error: expected ',' or '...' before string constant

# clk_g_head.cpp: In constructor 'mytop::mytop(sc_core::sc_module_name)':

# clk_g_head.cpp:13: error: no match for call to '(sc_core::sc_in<bool>) (<unresolved overloaded function type>)'

# C:\modeltech_10.1c\include\systemc/sc_signal_ports.h:640: note: candidates are: void sc_core::sc_in<bool>::operator()(const sc_core::sc_signal_in_if<bool>&)

# C:\modeltech_10.1c\include\systemc/sc_signal_ports.h:649: note:                 void sc_core::sc_in<bool>::operator()(sc_core::sc_port<sc_core::sc_signal_in_if<bool>, 1, SC_ONE_OR_MORE_BOUND>&)

# C:\modeltech_10.1c\include\systemc/sc_signal_ports.h:658: note:                 void sc_core::sc_in<bool>::operator()(sc_core::sc_port<sc_core::sc_signal_inout_if<bool>, 1, SC_ONE_OR_MORE_BOUND>&)

# ** Error: (sccom-6142) Compilation failed.

# 

# 

# ** Error: C:/modeltech_10.1c/win32/sccom failed.

# Error in macro C:\Users\Jeff\modelsim_systemC\clk_gen\run1.do line 25

# C:/modeltech_10.1c/win32/sccom failed.

#     while executing

# "sccom -g myclk.cpp clk_g_head.cpp"

# 

# Model Technology ModelSim SE sccom 10.1c compiler 2012.07 Jul 27 2012

# 

# Exported modules:

# mytop

# 

# Model Technology ModelSim SE sccom 10.1c compiler 2012.07 Jul 27 2012

 

 

 

What is wrong? Please help me because I am new to both SystemC and C++ yet. Thanks again.

 

 

 

 

[apfitch]

C++ before C++11 does not allow initialisation of non-static class members at declaration (which is what your red example is trying to do). So you must use a member initializer list (your blue example)

 

regards

Alan