optimisation flag -Os instead of -O3.

- removed 49 CR characters
 - removed 2 trailing whitespaces
 - replaced 1622 tabs with spaces

return an already created object if necessary.

compiler bugs in the Xcode toolchain.

positive values, and add a unit test for rand<int>.

that lets us draw integer random values too.

improved numerical stability on i386.

string concatenation unit tests.

because we actually have a bug!

for substrings, and the corresponding unit tests.

and add a simple unit test function.

a Set() method. Also, new HasKey() method.

I'm gonna commit this right now though I'm not really sure whether Visual
Studio will agree to build va_copy and others.

of unit tests for the String class.

computed on demand with static initialisation.

to zero.

software is installed.

functions; also remove a lot of idiotic "using namespace std" from the
codebase.

personal taste.