update headers with license SPDX

tools/cmd/areal.cpp

@@ -1,6 +1,7 @@
 // areal.cpp: show the components of different areal configuration
 //
-// Copyright (C) 2017-2021 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/number/areal/areal.hpp>

tools/cmd/cfloat8_2.cpp

@@ -1,6 +1,7 @@
 // cfloat8_2.cpp: components of a float: cli to show the sign/scale/fraction components of a cfloat<8,2>
 //
-// Copyright (C) 2017-2022 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/utility/directives.hpp>

tools/cmd/cfloat8_3.cpp

@@ -1,6 +1,7 @@
 // cfloat8_3.cpp: components of a float: cli to show the sign/scale/fraction components of a cfloat<8,3>
 //
-// Copyright (C) 2017-2022 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/utility/directives.hpp>

tools/cmd/cfloat8_4.cpp

@@ -1,6 +1,7 @@
 // cfloat8_4.cpp: components of a float: cli to show the sign/scale/fraction components of a cfloat<8,4>
 //
-// Copyright (C) 2017-2022 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/utility/directives.hpp>

tools/cmd/double.cpp

@@ -1,6 +1,7 @@
 // double.cpp: components of a double: cli to show the sign/scale/fraction components of a double
 //
-// Copyright (C) 2017-2023 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/utility/directives.hpp>

tools/cmd/fixpnt.cpp

@@ -1,6 +1,7 @@
 // fixpnt.cpp: components of a fixed-point: cli to show the sign/scale/fraction components of a fixed-point value 
 //
-// Copyright (C) 2017-2021 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <iostream>

tools/cmd/float2posit.cpp

@@ -1,6 +1,7 @@
 // float2posit.cpp: convert a floating-point value to a posit
 //
-// Copyright (C) 2017-2021 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/number/posit/posit.hpp>

tools/cmd/half.cpp

@@ -1,6 +1,7 @@
 // half.cpp: components of a float: cli to show the sign/scale/fraction components of a half precision float 
 //
-// Copyright (C) 2017-2022 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/utility/directives.hpp>

tools/cmd/lns.cpp

@@ -1,6 +1,7 @@
 // lns.cpp: components of a logarithmic number: cli to show the sign/scale/fraction components of a logarithmic number 
 //
-// Copyright (C) 2017-2022 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/number/lns/lns.hpp>

tools/cmd/longdouble.cpp

@@ -1,6 +1,7 @@
 // longdouble.cpp: components of a long double: cli to show the sign/scale/fraction components of a long double native IEEE float
 //
-// Copyright (C) 2017-2022 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/utility/directives.hpp>

tools/cmd/plimits.cpp

@@ -1,6 +1,7 @@
 // plimits.cpp: cli to show the numeric_limits<> of the standard posits
 //
-// Copyright (C) 2017-2023 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/utility/directives.hpp>

tools/cmd/posit.cpp

@@ -1,6 +1,7 @@
 // posit.cpp: components of a posit: cli to show the sign/scale/regime/exponent/fraction components of standard posit configurations
 //
-// Copyright (C) 2017-2022 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/number/posit/posit.hpp>

tools/cmd/propenv.cpp

@@ -1,6 +1,7 @@
 // propenv.cpp: cli to show the type properties of the compiler environment
 //
-// Copyright (C) 2017-2022 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/traits/arithmetic_traits.hpp>

tools/cmd/propp.cpp

@@ -1,6 +1,7 @@
 // propp.cpp: cli to show the arithmetic properties of posit configurations
 //
-// Copyright (C) 2017-2021 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/number/posit/posit.hpp>

tools/cmd/propq.cpp

@@ -1,6 +1,7 @@
 // propq.cpp: cli to show a table of quires
 //
-// Copyright (C) 2017-2021 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/number/posit/posit.hpp>

tools/cmd/quad.cpp

@@ -1,6 +1,7 @@
 // quad.cpp: components of a float: cli to show the sign/scale/fraction components of a quad precision float 
 //
-// Copyright (C) 2017-2022 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/utility/directives.hpp>

tools/cmd/quarter.cpp

@@ -1,6 +1,7 @@
 // quarter.cpp: components of a float: cli to show the sign/scale/fraction components of a quarter precision float 
 //
-// Copyright (C) 2017-2022 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/utility/directives.hpp>

tools/cmd/signedint.cpp

@@ -1,6 +1,7 @@
 // signedint.cpp: components of a signed integer: cli to show the sign/scale/fraction components of a signed integer  
 //
-// Copyright (C) 2017-2021 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/utility/directives.hpp>

tools/cmd/single.cpp

@@ -1,6 +1,7 @@
 // single.cpp: components of a float: cli to show the sign/scale/fraction components of a single precision float 
 //
-// Copyright (C) 2017-2023 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <universal/utility/directives.hpp>

tools/cmd/unsignedint.cpp

@@ -1,6 +1,7 @@
 // unsignedint.cpp: components of an unsigned integer: cli to show the sign/scale/fraction components of an unsigned integer  
 //
-// Copyright (C) 2017-2021 Stillwater Supercomputing, Inc.
+// Copyright (C) 2017 Stillwater Supercomputing, Inc.
+// SPDX-License-Identifier: MIT
 //
 // This file is part of the universal numbers project, which is released under an MIT Open Source license.
 #include <iostream>