The || is the logical OR operator. : Logic Operators « Operator « C Tutorial

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C Tutorial » Operator » Logic Operators

5.5.7.The || is the logical OR operator.

#include <stdio.h>

 

int main()

{

    char c;

 

    printf("Y/y?");

    c=getchar();

    if(c=='Y' || c=='y')

    {

        printf("Bye!\n");

    }

    else

    {

        printf("Okay!\n");

    }

    return(0);

}

Y/y?1
      Okay!

5.5.Logic Operators
	5.5.1.	Boolean Operator in C
	5.5.2.	Logical operator
	5.5.3.	Logical AND (&&) returns a true value if both relational expressions are true.
	5.5.4.	Short circuiting
	5.5.5.	Ternary operator
	5.5.6.	Testing letters with logic operator and (&&)
	5.5.7.	The \|\| is the logical OR operator.

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