How to eliminate local variables that are set but not used in generated code?

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Xiaojie Qiu 2018-10-8

0
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https://ww2.mathworks.cn/matlabcentral/answers/422760-how-to-eliminate-local-variables-that-are-set-but-not-used-in-generated-code

评论： John D'Errico 2018-10-8

Hi everyone,

In generated code, there are some variables that are defined but never used. After compilation, the IDE displays warnings because of them.

For example, in generated code below, a local variable named u16_OffsetAddress is defined and assigned, but not used. After compilation, I get a warning from the IDE indicating that this variable is set but not used.

// Code begin
static void my_model_EEPROMEraseBlock_Init(DW_EEPROMEraseBlock_simulink_function_T *localDW)
{
 uint16_T u16_OffsetAddress;
 localDW->s16_ErrorFlag_Temp = 0;
 localDW->s16_ErrorFlag_out = 0;
 u16_OffsetAddress = 0U;
}
// Code end