Simple Report all non-const variables declared at namespace scope. Avoid singletons Singletons are basically complicated global objects in disguise. In a multi-threaded environment, the initialization of the static object does not introduce a race condition unless you carelessly access a shared object from within its constructor. Note that the initialization of a local static does not imply a race condition.
The key trick is to find a construct that can be evaluated at compile time and can cause an error for some values.
One answer is the declaration of an array cannot have a negative size. Using a typedef prevents the allocation of space on success, and preserves the error on failure. The error message itself will cryptically refer to declaration of a negative size GCC says "size of array foo is negative"so you should pick a name for the array type that hints that this error really is an assertion check.
A further issue to handle is that it is only possible to typedef a particular type name once in any compilation unit. So, the macro has to arrange for each usage to get a unique type name to declare. My usual solution has been to require that the macro have two parameters. The first is the condition to assert is true, and the second is part of the type name declared behind the scenes.
Unfortunately, if the assertion check is in an included file, it can still collide with a check at the same line number in a second included file, or at that line number in the main source file. So, I would propose the following code fragment:This book is more accessible than the Dragon book (Compilers: Principles, Techniques, and Tools) but is less complete.
This book presents complete source code for parser generators tools and a C compiler. The how-to C and C++ - A Story of a compiler, assembler and linker tutorial - The process of building programs based on C language that includes in-depth executable/binary study.
Preferred languages: C/C++, Java, and Ruby.. I am looking for some helpful books/tutorials on how to write your own compiler simply for educational purposes. I am most familiar with C/C++, Java, and Ruby, so I prefer resources that involve one of those three, but any good resource is acceptable.
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Preferred languages: C/C++, Java, and Ruby.. I am looking for some helpful books/tutorials on how to write your own compiler simply for educational purposes.
I am most familiar with C/C++, Java, and Ruby, so I prefer resources that involve one of those three, but any good resource is acceptable.