What is C++?
C++ is a programming language for indefinite determination. It is commanding object-oriented and generic programming while also providing facilities for low-level memory manipulation. It was designed with a bias towards system programming and embedded resource-constrained.
The large systems with performance efficiency and flexibility of using its configuration highlights. C++ has also been discovered useful in various other contexts with strengths being software infrastructure and resource-constrained applications including desktop application servers.
For example, e-commerce web search or SQL servers and performance-critical applications.
Like, telephone switches or space probes.
History of C++ Programming Language
C++ is a language that is compiled and implemented in a certain way that it is available on many platforms and is provided by various organizations including Microsoft and Intel. C++ is systematized by the International Organization for Standardization ISO with the most advanced standard version approved and published by ISO in December 2014.
The current C++ 14 emblem succeeds these and C++ 11 with new features and a large regulation library ere the initial standardization in 1998. C++ was explained by jarns Druce Terp at Beĺl labs since 1979 as an extension of the C language as he wanted an efficient and flexible language similar to C which also provided high-level features for program organization. Many additional programming languages have been affected by C++ including C pound sign java and more current versions of C after 1998.
What Does Operator Mean in C++?
Now being a commanding language it comes up with a few operators, Coming to the operator, it is a sign that tells the computer to perform specific mathematical or logical manipulations. Now depending on the type of operation, these certain operators are categorized.
Now suppose variable A holds value 10 and variable B holds 20.
|+||Adds two operands||A+B=30|
|–||Subtracts second operand from first||A-B= -10|
|*||Multiplies both operands||A*B= 200|
|/||Divides numerator by denominator||B/A= 2|
|%||Modulus operator gives remainder as output||B%A=0|
|++||Increases integer value by 1||A++ gives 11|
|—||Decreases integer value by 1||A– gives 9|
Assuming A holds 10 and B holds 20
|=||Assigns value from right side operand to the left one.||C=A+B|
|+=||Adds right operand to the left and assigns result to the left||A+=B ; A=A + B = 30|
|-=||Subtracts right operand from left and gives result to left||B-= A ; B=B – A = 10|
|*=||Multiplies right operand with left and assigns result to left||A*=B ; A= A * B =200|
|/=||Divides left operand with the right and assigns result to left||B/=A ; B=B / A =2|
|%=||Takes the modulus using 2 operands and assigns the result to the left||B%=A ; B=B % A = 0|
Assuming A holds 10 and B holds 20
|==||Checks if, the two operands are equal or not, if yes then condition becomes true||A==B, is not true|
|!=||Checks if, two operands are equal or not , if not then condition becomes true||A!=B, is true|
|>||Checks if, left operand is greater than right , if yes then condition becomes true||A>B, is not true|
|<||Checks if, left operand is less than right, if yes then condition becomes true||A<B , is true|
|>=||Checks if, left operand is greater than or equal to right operand , if yes then condition becomes true||A>=B, is not true|
|<=||Checks if, left operand is less than or equal to right, if yes then condition becomes true||A<=B, is true|
Assume A holds 1 and B holds 0
|&&||Called AND operator , if both operands are non zero, then condition becomes true||A&&B , is false|
|||||Called OR operator, if any of the two operands is non zero, then condition becomes true||A||B , is true|
|!||Called NOT operator, used to reverse logical state of its operand. If a condition is true, then NOT can make it false.||!(A&&B) , is true|
|sizeof||Returns the size of a variable. For example, sizeof (a) ,where a is integer will return 4|
|Condition ? X : Y||If condition is true ? then it returns value X : otherwise value Y|
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