template< class type1, class type2, class type3 >
bool ckd_mul( type1* result, type2 a, type3 b );
Computes the multiplication x à y and stores the result into *result. The multiplication is performed as if both operands were represented in a signed integer type with infinite range, and the result was then converted from this integer type to type1. If the value assigned to *result correctly represents the mathematical result of the operation, it returns false. Otherwise, it returns true. In this case, the value assigned to *result is the mathematical result of the operation wrapped around to the width of *result.
[edit] Parameters a, b - integer values result - address of where result should be stored [edit] Return valuefalse if the value assigned to *result correctly represents the mathematical result of the multiplication, true otherwise.
[edit] NoteThe function template ckd_mul has the same semantics as the corresponding type-generic macro with the same name specified in C23.
Each of the types type1, type2, and type3 is a cv-unqualified signed or unsigned integer type.
It is recommended to produce a diagnostic message if type2 or type3 are not suitable integer types, or if *result is not a modifiable lvalue of a suitable integer type.
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