What is the meaning of this symbol in C++?
In C++ the “^” symbol is the bitwise exclusive or (xor) operator. For a single bit you have 0 ^ 0 = 1 ^ 1 = 0 and 0 ^ 1 = 1 ^ 0 = 1 . However, in the question you are refering to it is part of Microsoft special syntax for C++ development on the . NET platform known as C++/CLI or It Just Works. Memory on .
What is the difference between << and >> in C++?
>> is a right shift operator. << is a left shift operator.
What does =+ mean in C++?
3 Answers. 3. += means it will increment the lValue by Right side value. =+ means it will assign the right side value (with sign) to “lValue”
What does single colon mean in C++?
The single colon specifies an initialization list, as the other couple of responses have already stated. The items in the list are specifications of which member variable or base class constructors will be used – particularly important for writing copy constructors.
What is cout and cin in C++?
cin is an object of the input stream and is used to take input from input streams like files, console, etc. cout is an object of the output stream that is used to show output. Basically, cin is an input statement while cout is an output statement. They also use different operators.
What is insertion and extraction operator in C++?
Advertisements. C++ is able to input and output the built-in data types using the stream extraction operator >> and the stream insertion operator <<. The stream insertion and stream extraction operators also can be overloaded to perform input and output for user-defined types like an object.
What is the difference between += and =+?
+= is a compound assignment operator – it adds the RHS operand to the existing value of the LHS operand. =+ is just the assignment operator followed by the unary + operator.
What is the difference between int and int *?
A Java both int and Integer are used to store integer type data the major difference between both is type of int is primitive while Integer is of class type. int provides less flexibility as compare to Integer as it only allows binary value of an integer in it. …
What is colon in C programming?
Basically, the number after the colon describes how many bits that field uses. Here is a quote from MSDN describing bit fields: The constant-expression specifies the width of the field in bits.
What does a double colon mean in C++?
scope resolution operator
Two colons (::) are used in C++ as a scope resolution operator. This operator gives you more freedom in naming your variables by letting you distinguish between variables with the same name.
How do you write N in C++?
The symbol \n is a special formatting character. It tells cout to print a newline character to the screen; it is pronounced “slash-n” or “new line.” to be printed to the console. Because no newline character is present after the first string, the next value is printed immediately afterward.
What does int main () mean in C?
int main – ‘int main’ means that our function needs to return some integer at the end of the execution and we do so by returning 0 at the end of the program. 0 is the standard for the “successful execution of the program”.
What is the difference between X chromosomes and Y chromosome?
X Chromosome: X chromosome is a sex chromosome that occurs paired in the female and single in the male. Y Chromosome: Y chromosome is a sex chromosome which is normally present only in male cells.
What is the difference between the x-axis and the Y-axis?
The x-axis is usually the horizontal axis, while the y-axis is the vertical axis. They are represented by two number lines that intersect perpendicularly at the origin, located at (0, 0), as shown in the figure below.
What is the difference between x==y and X==?
== compares value of left and side expressions, return 1 if they are equal other will it will return 0. When expression x==y evaluates, it will return 1 (it means condition is TRUE) and “TRUE” will print.
What is the difference between X and Y in regression?
The X variable is often called the predictor and Y is often called the criterion (the plural of ‘criterion’ is ‘criteria’). It is customary to talk about the regression of Y on X, so that if we were predicting GPA from SAT we would talk about the regression of GPA on SAT.
https://www.youtube.com/watch?v=lJF0HBB_QvM