How do i create two files in app data directory ?

Im unable to create two files and store the file path pointer of both.

char* get_write_filepath(char *filename)
{

    char write_filepath[10000] = {0,};
    char *resource_path =NULL;
    resource_path=app_get_data_path();
    if(resource_path!=NULL)
    {
        snprintf(write_filepath,10000,”%s%s”,resource_path,filename);
        free(resource_path);
    }

    return write_filepath;
}

 char* file_path1=NULL;
    char* file_path2=NULL;
    file_path1=get_write_filepath(“TestApplication1.txt”);
    file_path2=get_write_filepath(“TestApplication2.txt”);

When i print  file_path1 and file_path2 ,both are same.How ?