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more intuitive left shift and right shift operators

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Before:
 * << is left shift, not allowed to shift 1 bits out
 * <<% is left shift, allowed to shift 1 bits out
 * >> is right shift, allowed to shift 1 bits out

After:
 * << is left shift, allowed to shift 1 bits out
 * >> is right shift, allowed to shift 1 bits out
 * @shlExact is left shift, not allowed to shift 1 bits out
 * @shrExact is right shift, not allowed to shift 1 bits out

Closes #413
This commit is contained in:
Andrew Kelley
2017-08-09 10:09:38 -04:00
parent 54675b060a
commit 35d3444e27
28 changed files with 274 additions and 128 deletions
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src/error.cpp
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@@ -25,6 +25,7 @@ const char *err_str(int err) {
case ErrorUnexpected: return "unexpected error";
case ErrorExactDivRemainder: return "exact division had a remainder";
case ErrorNegativeDenominator: return "negative denominator";
case ErrorShiftedOutOneBits: return "exact shift shifted out one bits";
}
return "(invalid error)";
}