misleading-inline-if-semicolon (C151)

Fix is always available.

This rule is turned on by default.

What does it do?

Checks for misleading semicolons in if statements.

Why is this bad?

The following code may appear to execute two statements only if the if condition is true, but in actuality the second statement will always be executed:

if (condition) print *, "Hello"; print *, "World"

It is equivalent to:

if (condition) print *, "Hello"
print *, "World"

Users should be cautious applying this fix. If the intent was to have both statements execute only if the condition is true, then the user should rewrite the code to use an if statement with a block:

if (condition) then
    print *, "Hello"
    print *, "World"
end if