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3.18
1 undefined behavior
behavior, upon use of a nonportable or erroneous program construct, of erroneous data, or
of indeterminately valued objects, for which this International Standard imposes no
requirements
2 NOTE Possible undefined behavior ranges from ignoring the situation completely with unpredictable
results, to behaving during translation or program execution in a documented manner characteristic of the
environment (with or without the issuance of a diagnostic message), to terminating a translation or
execution (with the issuance of a diagnostic message).
3 EXAMPLE An example of undefined behavior is the behavior on integer overflow.
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