Replacement of int to int32_t

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Linux

Hi ,

I need to write a string to replace all non-portable data types to portable types.
e.g int to int32_t

I made the below command to replace int

find . -type f \( -name "*.cpp" -or -name "*.cc" -or -name "*.h" \) -exec sed -i 's/\bint\b/int32_t/g' {} +

But it is also replacing cases inside comment section like int-class etc
I do not want to replace cases if it is inside comment or if int is immediately preceded by any special character like int- etc.

Could you please anyone let me know the solution

What I have tried:

find . -type f \( -name "*.cpp" -or -name "*.cc" -or -name "*.h" \) -exec sed -i 's/\bint\b/int32_t/g' {} +