Teach Yourself Borland C++ in 14 Days - portal

370 Day 10
You can set the Pre-compiled Headers option to None, Use pre-compiled headers, or Cache
pre-compiled headers depending on your needs and the hardware available on your system.
Generally speaking, you will use pre-compiled headers in one way or another. Turning off
pre-compiled headers almost always results in much slower build times.
TIP
The option to cache pre-compiled headers will dramatically speed up
compile and build times if you have enough system RAM. If you do
not have enough system RAM, caching pre-compiled headers can
actually slow down your builds. Do your own tests to determine
whether caching of pre-compiled headers is faster or slower on your
system. In general, though, I would recommend turning caching off if
you have less than 32MB of system RAM.
Compiling
The Compiling group of options on the C++ page is used to control how the C++ compiler
performs certain options. For the most part, you should leave these options set at the defaults
until you get more familiar with C++Builder and C++ in general. These settings are explained
in the following sections.
Merge Duplicate Strings
When the Merge Duplicate Strings option is on, it tells the compiler to merge duplicate
strings into one memory location. This saves overall program size but can lead to problems
if one of the strings is modified.
Stack Frames
Leave the Stack frames option on when debugging. When you are done debugging, you can
turn off this option to have the compiler generate smaller and faster code, but compile times
will be slightly longer with the Stack frames option off. Most of the time the speed and size
savings are not significant enough to warrant turning off this option. As always, do your own
test to be sure.
Show Warnings
When the Show warnings option is on, any compiler warnings are displayed in the Code
Editor message window. I always leave this option on. Compiler warnings should not be
ignored for the long term. Most of the time compiler warnings can, and should, be resolved.