Add new constructor and setter for Fw::String #4617
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Add a new Fw::String constructor and setter to copy the first n bytes of a string into Fw::String. The result is similar to the application of strncpy.
| String(const char* src) : StringBase() { *this = src; } | ||
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| String(const char* src, FwSizeType length) : StringBase() { | ||
| setString(src, length); |
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I am not entirely sure if this is fine in terms of efficiency. The constructor calls the setter and there's an assert as well.
Also, should constructors/setters be added that accept String and ConstStringBase? This will make copies such as Fw::String copyStr5(copyStr4, 5); possible. This doesn't work at the moment.
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| String(const char* src) : StringBase() { *this = src; } | ||
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| String(const char* src, FwSizeType length) : StringBase() { | ||
| setString(src, length); |
Check warning
Code scanning / CodeQL
Unchecked function argument Warning
| String(const char* src) : StringBase() { *this = src; } | ||
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| String(const char* src, FwSizeType length) : StringBase() { | ||
| setString(src, length); |
Check warning
Code scanning / CodeQL
Unchecked function argument Warning
| void setString(const char* src, FwSizeType length) { | ||
| // "length" non-null bytes should be followed by a null byte | ||
| FW_ASSERT(length < this->getCapacity()); | ||
| (void)Fw::StringUtils::string_copy(const_cast<char*>(this->toChar()), src, length + 1); |
Check warning
Code scanning / CodeQL
Unchecked function argument Warning
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| String(const char* src) : StringBase() { *this = src; } | ||
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| String(const char* src, FwSizeType length) : StringBase() { |
Check notice
Code scanning / CodeQL
Use of basic integral type Note
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| StringBase::SizeType getCapacity() const { return sizeof this->m_buf; } | ||
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| void setString(const char* src, FwSizeType length) { |
Check notice
Code scanning / CodeQL
Use of basic integral type Note
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Change Description
Add a new Fw::String constructor and setter to copy the first n bytes of a string into Fw::String.
Rationale
This could come in handy when writing to a field/buffer whose length is known beforehand.
Testing/Review Recommendations
Two test cases have been added to
Fw/Types/test/ut/TypesTest.cpp:StringTest.Future Work
NA
AI Usage (see policy)
NA