do I get same value if I cast to something then cast back #84064
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if I cast int64 to uint64, do I get the same integer if I cast this uint64 to int64? I'm using F# but you can tell me about the situation in C# too if it's different What about floats |
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It's case by case depending on the capacity of the types.
Yes, for integers of same size, the cast is a bitcast.
Currently there's no floats with same capacity. If both types have the same base (base-2 or base-10), casting from smaller->bigger->smaller is loseless. |
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Thanks |
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It's case by case depending on the capacity of the types.
Yes, for integers of same size, the cast is a bitcast.
Currently there's no floats with same capacity. If both types have the same base (base-2 or base-10), casting from smaller->bigger->smaller is loseless.
Note that this only applies for "normal' values. I'm not sure the rules about NaN/Infs.