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Conditional expression operators in C: The ? operator returns one of two values based on a condition. The : operator converts a Boolean expression to an integer value, which is 1 for true and 0 for false.
The ? and:
#C in ? and: operators are used in conditional expressions, Similar to if-else statements in other programming languages.
? Operator
? operator is a ternary operator that returns one of two values based on a conditional Boolean expression. The syntax is:
<code class="cpp">condition ? value_if_true : value_if_false;</code>
where:
condition
is a Boolean expression. value_if_true
is the value returned if condition
is true. value_if_false
is the value returned if condition
is false. Example:
<code class="cpp">int x = 10; int result = (x > 5) ? 1 : 0; // result 将为 1,因为 x > 5 为真</code>
: Operator
: The operator is a unary operator, which Convert a Boolean expression to an integer value. The syntax is:
<code class="cpp">!expression;</code>
where:
expression
is a Boolean expression. The : operator returns 1 if expression
is true and 0 if expression
is false.
Example:
<code class="cpp">bool flag = true; int result = :flag; // result 将为 1,因为 flag 为真</code>
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