PRODUCT : Borland C++ NUMBER : 721 VERSION : 2.0 OS : DOS DATE : September 18, 1991 PAGE : 1/1 TITLE : Biggest Source File that BC++ Can Compile? There's no easy measure of the size of a file that can be compiled by BC++; it's more a function of complexity: large switch statements, deeply nested ors, ifs, whiles, etc. take up more memory. So if you're running out of memory in a compile, simplify. And compilation is basically done function by function, so shorter files won't help much. It's the complexity within a function that will make the compiler hit its limits. If you are developing Windows applications, there are lots of ways to make your 'winproc' smaller. One of the best is to ignore the usual programming conventions that have grown up around windows and do it right. For a small example of that sort of thing, take a look at the TODO demo that comes with BC. There are no deeply nested switch statements; not only does this effectively solve the problem but it has the added effect of making code readable.