[llvm] [SystemZ][z/OS] Fix error about const char in Text Encoding (PR #146727)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-support

Author: Abhina Sree (abhina-sree)

<details>
<summary>Changes</summary>

This patch fixes the following error:
```
llvm/lib/Support/TextEncoding.cpp:274:11: error: cannot initialize a variable of type 'char *' with an rvalue of type 'const char *'
  274 |     char *Input = InputLength ? const_cast<char *>(Source.data()) : "";
      |           ^       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```

---
Full diff: https://github.com/llvm/llvm-project/pull/146727.diff


1 Files Affected:

- (modified) llvm/lib/Support/TextEncoding.cpp (+1-1) 


``````````diff
diff --git a/llvm/lib/Support/TextEncoding.cpp b/llvm/lib/Support/TextEncoding.cpp
index b675966c8d822..b4ee0f8ee8bfd 100644
--- a/llvm/lib/Support/TextEncoding.cpp
+++ b/llvm/lib/Support/TextEncoding.cpp
@@ -271,7 +271,7 @@ TextEncodingConverterIconv::convertString(StringRef Source,
     // Setup the input. Use nullptr to reset iconv state if input length is
     // zero.
     size_t InputLength = Source.size();
-    char *Input = InputLength ? const_cast<char *>(Source.data()) : "";
+    char *Input = const_cast<char *>(InputLength ? Source.data() : "");
     Ret = iconv(ConvDesc, &Input, &InputLength, &Output, &OutputLength);
     if (Ret != 0) {
       if (auto EC = HandleError(Ret))

``````````

</details>


https://github.com/llvm/llvm-project/pull/146727