#bug_of_the_month

Barotrauma
▻https://hownot2code.com/2022/03/31/barotrauma

BUG OF THE MONTH | Unnecessary actions V3107 Identical expression ‘power’ to the left and to the right of compound assignment. RelayComponent.cs 150 The programmer is trying to add MaxPower, power and the difference between currPowerConsumption and power. The expanded version of the expression will look as follows: There’s no need to subtract the power variable from itself. The simplified code will look like … Continue reading Barotrauma

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Unity
▻https://hownot2code.com/2022/04/26/unity-2

BUG OF THE MONTH | Assignment to Variable without Use V3008 The ‘rect.y’ variable is assigned values twice successively. Perhaps this is a mistake. Check lines: 370, 366. ShaderVariantCollectionInspector.cs 370 The analyzer reports that the same variable — rect.y — is assigned a value twice and the code does not use the variable between the assignments. If we … Continue reading Unity

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Bitwarden
▻https://hownot2code.com/2022/05/25/bitwarden

BUG OF THE MONTH | Erroneous postfix PVS-Studio warning: V3159 Modified value of the ‘retriedCount’ operand is not used after the postfix increment operation. FreshdeskController.cs 167 Look at the incrementation of the retriedCount variable. Weird — the postfix notation is used here. The current value of the variable is returned first, and only then this value is increased. Maybe … Continue reading Bitwarden

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Ogre3D
▻https://hownot2code.com/2022/03/29/ogre3d

BUG OF THE MONTH | Incorrect Calculation V1064 The ‘1’ operand of integer division is less than the ‘100000’ one. The result will always be zero. OgreAutoParamDataSource.cpp 1094 Here the dummy vector should store floating point numbers. In this case, the constructor receives 4 arguments of the float type. However, there are integer values to the left and right of … Continue reading Ogre3D

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Blend2D
▻https://hownot2code.com/2022/04/29/blend2d

BUG OF THE MONTH | An always-false expression V547 Expression ‘h == 0’ is always false. jpegcodec.cpp 252 In this code fragment, the result of the blMemReadU16uBE function call is assigned to the h variable. Then if the h == 0 check is true, we exit from the function’s body. During initialization impl->delayedHeight, the h variable has non-zero value. Thus, impl->delayedHeight is false.

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DuckStation
▻https://hownot2code.com/2022/05/27/duckstation

BUG OF THE MONTH | Free of Pointer not at Start of Buffer V726 An attempt to free memory containing the ‘wbuf’ array by using the ‘free’ function. This is incorrect as ‘wbuf’ was created on stack. log.cpp 216 Here the analyzer detected code with an error. In this code fragment, we see an attempt to … Continue reading DuckStation

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