[Info-vax] BASIC (and Horizon)

[Lawrence D'Oliveiro]

On Wed, 31 Jan 2024 15:52:30 +0200, Michael S wrote:

> One option is named construct and named break.

I have never written a goto in C code (not production code, anyway). These 
days, you need to do so much dynamic allocation, there is nearly always 
some need for cleanup when exiting an inner block anyway, so you can’t 
just jump directly somewhere else first. The overall pattern looks like 
this:

    MyPtr obj = NULL;
    do /*once*/
      {
        ... possible other stuff ...
        «allocate memory for obj»;
        if («error occurred»)
            break;
        ... possible other stuff using obj ...
      }
    while (false);
    free(obj);

You can confirm, just by inspection, that there is no path out of the 
block that does not pass through the free() call precisely once.