Tutorial by Topics: defined

In C, some expressions yield undefined behavior. The standard explicitly chooses to not define how a compiler should behave if it encounters such an expression. As a result, a compiler is free to do whatever it sees fit and may produce useful results, unexpected results, or even crash. Code that i...

Function functionName(argumentVariable As dataType, argumentVariable2 As dataType, Optional argumentVariable3 As dataType) As functionReturnDataType Basic declaration of a function. Every function needs a name, but it does not have to take any arguments. It may take 0 arguments, or it may take ...

What is undefined behavior (UB)? According to the ISO C++ Standard (§1.3.24, N4296), it is "behavior for which this International Standard imposes no requirements." This means that when a program encounters UB, it is allowed to do whatever it wants. This often means a crash, but it may si...

Overview The C standard describes the language syntax, the functions provided by the standard library, and the behavior of conforming C processors (roughly speaking, compilers) and conforming C programs. With respect to behavior, the standard for the most part specifies particular behaviors fo...

User defined table types (UDT for short) are data types that allows the user to define a table structure. User defined table types supports primary keys, unique constraints and default values. UDTs have following restrictions - can not be used as a column in a table or a field in a structure...

typeof x === "type name" x instanceof TypeName function(foo: any): foo is TypeName { /* code returning boolean */ } Using type annotations in TypeScript constrains the possible types your code will need to deal with, but it is still common to need to take different code paths b...

ANSI C defines a number of macros. Although each one is available for your use in programming, the predefined macros should not be directly modified. DATE The current date as a character literal in "MMM DD YYYY" format TIME The current time as a character literal in "HH:MM:SS...

More examples on how C++ can go wrong. Continuation from Undefined Behavior