Question

I want to create an converter from memory.

I have created the etrypoint_dat and then the c file from my converter and joined the two struct together:

 },
    "", 1, 0, {
      { "ibm-5348_P100-1997", (const void *)&ibm_5348_P100_1997_cnv }
  }

From the code I call

  udata_setAppData("icupackage.dat", &ntrypoint_dat, &status); // return is good

Now my question:
How do I create the converter after the call fo setAppData?

The following does not work:

 UConverter* conv = ucnv_open("ibm-5348_P100-1997", &status);

Answer 1

I found it myself.

The connection between the two structs must be named in this way:

{ "icupackage.dat/ibm-5348_P100-1997.cnv", (const void *)&ibm_5348_P100_1997_cnv },

then from code we can call:

  status = U_ZERO_ERROR;
  udata_setAppData("icupackage.dat", &ntrypoint_dat, &status);

and then:

  status = U_ZERO_ERROR;    
  _cnvCP1252 = ucnv_openPackage("windows", "ibm-5348_P100-1997.cnv", &status);

The .dat should be deleted. I leave it for consistences with the question.