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				https://github.com/ethereum/solidity
				synced 2023-10-03 13:03:40 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			28 lines
		
	
	
		
			953 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			28 lines
		
	
	
		
			953 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
// since the copy always copies whole slots, we have to make sure that the source size maxes
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// out a whole slot and at the same time there are still elements left in the target at that point
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contract c {
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    bytes8[4] data1; // fits into one slot
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    bytes10[6] data2; // 4 elements need two slots
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    function test() public returns (bytes10 r1, bytes10 r2, bytes10 r3) {
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        data1[0] = bytes8(uint64(1));
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        data1[1] = bytes8(uint64(2));
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        data1[2] = bytes8(uint64(3));
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        data1[3] = bytes8(uint64(4));
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        for (uint256 i = 0; i < data2.length; ++i)
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            data2[i] = bytes10(uint80(0xffff00 | (1 + i)));
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        data2 = data1;
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        r1 = data2[3];
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        r2 = data2[4];
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        r3 = data2[5];
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    }
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}
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// ====
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// compileToEwasm: also
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// compileViaYul: also
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// ----
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// test() -> 0x04000000000000000000000000000000000000000000000000, 0x0, 0x0
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// gas irOptimized: 93855
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// gas legacy: 97451
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// gas legacyOptimized: 94200
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