Compiler Warning (level 4, off) C4289
nonstandard extension used : 'var' : loop control variable declared in the
for
-loop is used outside thefor
-loop scope
When /Ze and /Zc:forScope- are used in a build, a variable declared in a for
loop was used after the for
-loop scope.
See /Zc:forScope for information about how to specify standard behavior in for
loops with /Ze.
This warning is off by default. For more information, see Compiler Warnings That Are Off by Default.
The following sample generates C4289:
// C4289.cpp
// compile with: /W4 /Zc:forScope-
#pragma warning(default:4289)
int main() {
for (int i = 0 ; ; ) // C4289
break;
i++;
}
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