Important Things to Note About Loops and Decision in C++

By C Plus Plus (c++)
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  • Before C++ true and false were represented as 1 and 0 respectively. But C++ uses both. Other than 0 all values represent true.
  • Library function exit() :
    • exit(0) : Normal Exit
    • exit(other numerical value) : Error / Abnormal exit.
    • This function is present in ‘process.h’
  • Library function getche():
    • This function is present in conio.h
    • No need of user to press enter after input. This function returns character as soon as it reads.
    • ‘e’ in getche represents echo, means getche echo data on screen.
  • Conditional operator (?:) : –
    • min = (alpha < beta) ? alpha : beta;
  • Precedence of operators : Unary>Arithmetic>Relational>Logical>Conditional>Assignment
  • Switch case only accepts character and integer type variables.