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Merge pull request #157 from chrboesch/e64
fixed: https://github.com/ratfactor/ziglings/issues/156
This commit is contained in:
commit
318873a0fc
1 changed files with 2 additions and 4 deletions
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@ -38,14 +38,12 @@ pub fn main() void {
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// Let's try it with a tiny 4-bit integer size to make it clear:
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// Let's try it with a tiny 4-bit integer size to make it clear:
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const a: u4 = 0b1101;
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const a: u4 = 0b1101;
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const b: u4 = 0b0101;
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const b: u4 = 0b0101;
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var my_result: u4 = undefined;
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const my_result = @addWithOverflow(a, b);
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var overflowed: bool = undefined;
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overflowed = @addWithOverflow(u4, a, b, &my_result);
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// Check out our fancy formatting! b:0>4 means, "print
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// Check out our fancy formatting! b:0>4 means, "print
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// as a binary number, zero-pad right-aligned four digits."
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// as a binary number, zero-pad right-aligned four digits."
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// The print() below will produce: "1101 + 0101 = 0010 (true)".
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// The print() below will produce: "1101 + 0101 = 0010 (true)".
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print("{b:0>4} + {b:0>4} = {b:0>4} ({})", .{ a, b, my_result, overflowed });
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print("{b:0>4} + {b:0>4} = {b:0>4} ({s})", .{ a, b, my_result[0], if (my_result[1] == 1) "true" else "false" });
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// Let's make sense of this answer. The value of 'b' in decimal is 5.
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// Let's make sense of this answer. The value of 'b' in decimal is 5.
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// Let's add 5 to 'a' but go one by one and see where it overflows:
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// Let's add 5 to 'a' but go one by one and see where it overflows:
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