What does -= mean in C#?
John Kim
Updated on April 23, 2026
Also question is, what does * do in C?
The * operator is called the dereference operator. It is used to retrieve the value from memory that is pointed to by a pointer. numbers is literally just a pointer to the first element in your array.
One may also ask, what does i += 1 mean? The expression ++i is equivalent to (i += 1). The value of both expressions is i after the increment has been performed.
Also know, what does == mean?
In programming languages == sign or double equal sign means we are comparing right side with left side. And this comparison returns true or false. We usually use this comparison inside if condition to do something specific. Double equal operator is a very common used operator after single equal.
What does * str mean in C?
It checks if the character pointed to by s is ascii null (NUL) '' which is the string delimiter (last char) in C strings. !* s will be true if *s is '' . Note that it is not the same as checking if s is NULL which means that the pointer s points to address zero.
Related Question Answers
What does %d mean in C?
Format Specifiers in C| Specifier | Used For |
|---|---|
| %Lf | long double |
| %n | prints nothing |
| %d | a decimal integer (assumes base 10) |
| %i | a decimal integer (detects the base automatically) |
What does [] mean in C?
*array[] means array of pointers, in your example: char *somarray[] = {"Hello"}; somarray[] is array of char* . this array size is one and contains address to on string "Hello" like: somarray[0] -----> "Hello"What does int * mean in C?
int * is a type — specifically it is pointer to int. (type)x is a type cast. It says to reinterpret or convert x to that type. With pointer types it always means reinterpret. i is of type char .How do you declare a pointer?
Pointers must be declared before they can be used, just like a normal variable. The syntax of declaring a pointer is to place a * in front of the name. A pointer is associated with a type (such as int and double ) too.What is #include math H?
h is a header file in the standard library of the C programming language designed for basic mathematical operations. Most of the functions involve the use of floating point numbers. All functions that take or return an angle work in radians.What is double * in C?
Double pointers can also known as pointer to pointer. The first pointer is used to store the address of second pointer. That means Double pointer stores the value of pointer variable. They are denoted by (**).What does 2 equal signs mean?
A double equal sign means "is equal to."What does <> mean in?
Yes, it means "not equal", either less than or greater than.What does == 0 mean in Java?
The “==0” checks if the result of the modulo operator is equal to 0. For example if the variable i stores 5, then 5 divided by 2 = 2, with a remainder of 1, so 1 is the value returned from the modulo operator. 1 is not equal to 0, so the whole expression evaluates to false.What does this means in math?
It almost always means "and," both in and outside of mathematics. * This symbol is called an asterisk. In mathematics, we sometimes use it to mean multiplication, particularly with computers. For example, 5*3 = 5 times 3 = 15.What is DOS short for?
Disk Operating System.DOS is an acronym meaning "Disk Operating System", which refers to a number of computer operating systems that are operated by using the command line. The term DOS is used to describe several very similar command-line systems, including MS-DOS and FreeDOS.
