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Ran across some code that used this, which led me to wonder.
if(condition) foo = bar();
condition && (foo = bar());
Are these two segments of code equal to a compiler? If not, in what ways would they differ?
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C has the following conditional statements: Use if to specify a block of code to be executed, if a specified condition is true. Use else to specify a block of code to be executed, if the same condition is false. Use else if to specify a new condition to test, if the first condition is false.
In the C Programming Language, the #if directive allows for conditional compilation. The preprocessor evaluates an expression provided with the #if directive to determine if the subsequent code should be included in the compilation process.
Yes, both C and C++ allow us to nested if statements within if statements, i.e, we can place an if statement inside another if statement.
Conditional Statements : if, else, switch.
Due to operator precendence, the latter is interpreted as:
(condition && foo) = bar();
Additionally, there is a possibility of && being overloaded, which may result in pretty much anything.
So in short: they are not equal at all - at least in general case.
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