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39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
// See the file "COPYING" in the main distribution directory for copyright.
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#include "zeek/Overflow.h"
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#include "zeek/Val.h"
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namespace zeek::detail {
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bool would_overflow(const zeek::Type* from_type, const zeek::Type* to_type,
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const Val* val)
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{
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if ( ! to_type || ! from_type )
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return true;
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if ( same_type(to_type, from_type) )
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return false;
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if ( to_type->InternalType() == TYPE_INTERNAL_DOUBLE )
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return false;
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if ( to_type->InternalType() == TYPE_INTERNAL_UNSIGNED )
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{
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if ( from_type->InternalType() == TYPE_INTERNAL_DOUBLE )
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return double_to_count_would_overflow(val->InternalDouble());
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if ( from_type->InternalType() == TYPE_INTERNAL_INT )
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return int_to_count_would_overflow(val->InternalInt());
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}
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if ( to_type->InternalType() == TYPE_INTERNAL_INT )
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{
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if ( from_type->InternalType() == TYPE_INTERNAL_DOUBLE )
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return double_to_int_would_overflow(val->InternalDouble());
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if ( from_type->InternalType() == TYPE_INTERNAL_UNSIGNED )
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return count_to_int_would_overflow(val->InternalUnsigned());
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}
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return false;
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}
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}
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