dynamic variable size ???

[mohitnegi]

Hello all,

 

i wish to have a variable whose size i can decide on the fly or dynamically ....

 

could anyone help me this using systemC ...

 

could anyone help me understand "sc_fxval " ??
 

Thanks

Mohit

[apfitch]

You can declare variables from the base classes of the templated SystemC types. These can be sized at run-time.

 

For instance, sc_lv<N> has a base class sc_lv_base, so you can write

 

sc_lv_base lv(size);

 

i.e. use a constructor argument to set the size.

 

regards

Alan

[mohitnegi]

hello Alan,

 

in sc_lv_base  we are setting the size in the constructor argument which cannot be changed later....

 

but i wish to set different(depends on the conditions) size at run time ...

 

Thanks

Mohit

[apfitch]

The constructor is called at runtime.

 

If you mean that you want to change the length of a vector during runtime, then you'll have to write your own code to do it. For instance to make a vector smaller, you could create a smaller vector, then copy the bits you want to keep across.

 

Of course you don't have to use SystemC data types, you could just use std::vector if it meets your requirements,

Alan