Fix MISRA C++ 2023 rule 0.1.2 "The value returned by a function shall be used"

[mohammedRafeeque]

Zserio version and language
Zserio: master branch
Commit hash: 4d22803
Language: C++
Priority : 3

Describe the bug
Check and resolve SCA warning MISRACPP2023-0_1_2-a " Unused function's 'put' return value"

See the attached xls for the SCA warning details
MISRACPP2023-0_1_2-a_Warning_ZserioRuntime.xlsx

How to reproduce
Steps to reproduce the behavior:
SCA run using MISRA 2023 configuration.

Expected behavior
No SCA warnings for MISRA 2023 ruleset

Additional context
N.A

@Roland-Homeier @mikir FYI.

[mikir]

Probably SonarCloud rule 'The value returned by a function shall be "used"' could be used for this. We will investigate it during the current milestone.

[mikir]

We went through all reported functions where the returned value should be checked. We have added explicit check of returned value wherever it makes sense.

However, there are still some cases where the check does not make sense (e.g. if function returns *this to allow subsequent calls). The following list contains all SonarCloud issues which have been accepted as the exceptions:

Module	Line	Command	Link
BitStreamReader.h	334	std::copy(sourceIt, sourceIt + numBytesToRead, buffer.begin());	SonarCloud
BitStreamWriter.cpp	488	std::copy(data.begin(), data.end(), m_buffer.begin() + beginBitPosition / 8);	SonarCloud
BitStreamWriter.cpp	513	std::copy(data.begin(), data.begin() + len, m_buffer.data() + beginBitPosition / 8);	SonarCloud
BitStreamWriter.h	260	std::copy(buffer.begin(), buffer.begin() + numBytesToWrite, m_buffer.data() + beginBitPosition / 8);	SonarCloud
CppRuntimeException.cpp	39	std::copy(message.begin(), message.end(), m_buffer.begin() + m_len);	SonarCloud
FileUtil.cpp	33	stream.seekg(0, stream.end);	SonarCloud
FileUtil.cpp	35	stream.seekg(0);	SonarCloud
JsonEncoder.cpp	54 + 9x	stream.put('"');	SonarCloud

There are no exceptions in the generated code.