[flang-commits] [flang] [flang][runtime] Implement EX editing for input & output (PR #67208)

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@@ -229,17 +229,22 @@ bool EditIntegerInput(
 
 // Parses a REAL input number from the input source as a normalized
 // fraction into a supplied buffer -- there's an optional '-', a
-// decimal point, and at least one digit.  The adjusted exponent value
-// is returned in a reference argument.  The returned value is the number
-// of characters that (should) have been written to the buffer -- this can
-// be larger than the buffer size and can indicate overflow.  Replaces
-// blanks with zeroes if appropriate.
-static int ScanRealInput(char *buffer, int bufferSize, IoStatementState &io,
-    const DataEdit &edit, int &exponent) {
+// (hexa)decimal point, and at least one digit.
+// Replaces blanks with zeroes where appropriate.
+struct ScannedRealInput {
+  // Number of characters that (should) have been written to the
+  // buffer -- this can be larger than the buffer size, which
+  // indicates buffer overflow.  Zero indicates an error.
+  int got{0};
+  int exponent{0}; // adjusted as necessary; binary if isHexadecimal
+  bool isHexadecimal{false}; // 0X...
+};
+static ScannedRealInput ScanRealInput(
+    char *buffer, int bufferSize, IoStatementState &io, const DataEdit &edit) {
   std::optional<int> remaining;
   std::optional<char32_t> next;
   int got{0};
-  std::optional<int> decimalPoint;
+  std::optional<int> decimalPoint; // misnamed for hexadecimal, sorry
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vdonaldson wrote:

+1

https://github.com/llvm/llvm-project/pull/67208