Reverted the const qualifier from the can_read method in both the header and source files, as well as the use_hdf5 member variable, to match the original code. Also added the new cmakedefine for HAVE_PETSIRD_HDF5_PROTOCOLS in the STIRConfig.h.in file.

Author: NikEfth

src/IO/PETSIRDCListmodeInputFileFormat.cxx

@@ -2,7 +2,7 @@
 
  Class defining input file format for coincidence listmode data for PETSIRD.
 
-        Copyright 2025, UMCG
+        Copyright 2025, 2026 UMCG
         Copyright 2025 National Physical Laboratory
 
         Licensed under the Apache License, Version 2.0 (the "License");
@@ -38,7 +38,7 @@
 START_NAMESPACE_STIR
 
 bool
-PETSIRDCListmodeInputFileFormat::can_read(const FileSignature& signature, const std::string& filename)
+PETSIRDCListmodeInputFileFormat::can_read(const FileSignature& signature, const std::string& filename) const
 {
 
   std::array<char, 4> hdf5_signature = { 'H', 'D', 'F', '5' };

src/include/stir/IO/InputFileFormat.h

@@ -46,7 +46,7 @@ class InputFileFormat
   {
     return this->actual_can_read(signature, input);
   }
-  virtual bool can_read(const FileSignature& signature, const std::string& filename)
+  virtual bool can_read(const FileSignature& signature, const std::string& filename) const
   {
     std::ifstream input;
     open_read_binary(input, filename);

src/include/stir/IO/PETSIRDCListmodeInputFileFormat.h

@@ -2,7 +2,7 @@
 
  Class defining input file format for coincidence listmode data for PETSIRD.
 
-        Copyright 2025, UMCG
+        Copyright 2025, 2026 UMCG
         Copyright 2025 National Physical Laboratory
 
         Licensed under the Apache License, Version 2.0 (the "License");
@@ -54,12 +54,12 @@ class PETSIRDCListmodeInputFileFormat : public InputFileFormat<ListModeData>
   const std::string get_name() const override { return "PETSIRD"; }
 
   //! Checks in binary data file for correct signature.
-  bool can_read(const FileSignature& signature, const std::string& filename) override;
+  bool can_read(const FileSignature& signature, const std::string& filename) const override;
 
 protected:
   bool actual_can_read(const FileSignature& signature, std::istream& input) const override { return false; }
 
-  bool use_hdf5 = false;
+  mutable bool use_hdf5 = false;
 
 public:
   unique_ptr<data_type> read_from_file(std::istream& input) const override

src/include/stir/IO/SAFIRCListmodeInputFileFormat.h

@@ -91,7 +91,7 @@ class SAFIRCListmodeInputFileFormat : public InputFileFormat<ListModeData>, publ
 
   //! Checks in binary data file for correct signature (can be either "SAFIR CListModeData", "NeuroLF CListModeData" or "MUPET
   //! CListModeData").
-  bool can_read(const FileSignature& signature, const std::string& filename) override
+  bool can_read(const FileSignature& signature, const std::string& filename) const override
   {
     // Looking for the right key in the parameter file
     std::ifstream par_file(filename.c_str());
@@ -151,7 +151,7 @@ class SAFIRCListmodeInputFileFormat : public InputFileFormat<ListModeData>, publ
   mutable std::string listmode_filename;
   mutable std::string crystal_map_filename;
   mutable std::string template_proj_data_filename;
-  mutable double lor_randomization_sigma = 0.0;
+  mutable double lor_randomization_sigma;
 
   bool actual_can_read(const FileSignature& signature, std::istream& input) const override
   {