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1.. title:: clang-tidy - bugprone-incorrect-roundings2 3bugprone-incorrect-roundings4============================5 6Checks the usage of patterns known to produce incorrect rounding.7Programmers often use::8 9 (int)(double_expression + 0.5)10 11to round the double expression to an integer. The problem with this:12 131. It is unnecessarily slow.142. It is incorrect. The number 0.499999975 (smallest representable float15 number below 0.5) rounds to 1.0. Even worse behavior for negative16 numbers where both -0.5f and -1.4f both round to 0.0.17