cpu_arch: char out

Author: scivision

+stdlib/+dotnet/cpu_arch.m

@@ -1,6 +1,6 @@
 %% DOTNET.CPU_ARCH get the Operating System architecture
 
 function a = cpu_arch()
-a = string(System.Runtime.InteropServices.RuntimeInformation.OSArchitecture);
+a = char(System.Runtime.InteropServices.RuntimeInformation.OSArchitecture);
 % https://learn.microsoft.com/en-us/dotnet/core/compatibility/interop/7.0/osarchitecture-emulation
 end

+stdlib/+java/cpu_arch.m

@@ -1,5 +1,5 @@
 function a = cpu_arch()
 
-a = string(javaMethod("getProperty", "java.lang.System", "os.arch"));
+a = char(javaMethod("getProperty", "java.lang.System", "os.arch"));
 
 end

+stdlib/+native/cpu_arch.m

@@ -1,5 +1,5 @@
 function a = cpu_arch()
 
-a = string(computer('arch'));
+a = computer('arch');
 
 end

test/TestSys.m

@@ -181,6 +181,7 @@ function test_cpu_arch(tc, cpu_arch_fun)
   tc.verifyEqual(e.identifier, 'stdlib:hbackend:NameError', e.message)
   return
 end
+tc.verifyClass(arch, 'char')
 tc.verifyGreaterThan(strlength(arch), 0, "CPU architecture should not be empty")
 end