One suggestion: In documentation and comments, distinguish clearly between "const" and "constant". "const" means "read-only", and probably should have been spe

One suggestion: In documentation and comments, distinguish clearly between "const" and "constant". "const" means "read-only", and probably should have been spelled "readonly". "constant", as in "constant expression", means evaluated at compile time. For example: `const int r = rand();` is perfectly valid: r can't be computed until run time (it's not constant), but it can't be modified after its initialization (it is const/readonly).