================
@@ -411,6 +412,48 @@ RT_API_ATTRS void ShallowCopy(const Descriptor &to, const
Descriptor &from,
bool toIsContiguous, bool fromIsContiguous);
RT_API_ATTRS void ShallowCopy(const Descriptor &to, const Descriptor &from);
+RT_API_ATTRS const char *EnsureNullTerminated(
+ const char *str, size_t length, Terminator &terminator);
+
+RT_API_ATTRS std::size_t LengthWithoutTrailingSpaces(const Descriptor &d);
+
+// Returns the length of the \p string. Assumes \p string is valid.
+RT_API_ATTRS std::int64_t StringLength(const char *string);
+
+// Assumes Descriptor \p value is not nullptr.
+RT_API_ATTRS bool IsValidCharDescriptor(const Descriptor *value);
+
+// Assumes Descriptor \p intVal is not nullptr.
+RT_API_ATTRS bool IsValidIntDescriptor(const Descriptor *intVal);
+
+// Assume Descriptor \p value is valid: pass IsValidCharDescriptor check.
+RT_API_ATTRS void FillWithSpaces(
+ const Descriptor &value, std::size_t offset = 0);
+
+RT_API_ATTRS std::int32_t CopyToDescriptor(const Descriptor &value,
+ const char *rawValue, std::int64_t rawValueLength, const Descriptor
*errmsg,
+ std::size_t offset = 0);
+
+void CopyCharToDescriptor(
----------------
yi-wu-arm wrote:
add comment.
```cpp
// Copy a null-terminated character array \p rawValue to descriptor \p value.
// The copy starts at the given \p offset, if not present then start at 0.
// If descriptor `errmsg` is provided, error messages will be stored to it.
// Returns stats specified in standard.
```
the returned stats code is only used in `command.cpp` but functionality of
copying is used in both `command.cpp` and `execute.cpp`
https://github.com/llvm/llvm-project/pull/74077
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