fix: Fixed the issue of examples failing to compile under MSVC

examples/context-engineering/context-engineering.cpp

@@ -15,7 +15,13 @@
 #include <functional>
 #include <iostream>
 #include <string>
+
+#ifdef _WIN32
+#include <io.h>
+#define isatty _isatty
+#else
 #include <unistd.h>
+#endif // _WIN32
 
 static constexpr size_t DEFAULT_MAX_TOOL_CALLS = 1;
 

examples/memory/memory.cpp

@@ -15,7 +15,6 @@
 #include <iostream>
 #include <map>
 #include <string>
-#include <unistd.h>
 
 using agent_cpp::json;
 

examples/multi-agent/multi-agent.cpp

@@ -15,7 +15,6 @@
 #include <iostream>
 #include <memory>
 #include <string>
-#include <unistd.h>
 
 using agent_cpp::json;
 

examples/shared/chat_loop.h

@@ -5,9 +5,15 @@
 #include <cstdio>
 #include <iostream>
 #include <string>
-#include <unistd.h>
 #include <vector>
 
+#ifdef _WIN32
+#include <io.h>
+#define isatty _isatty
+#else
+#include <unistd.h>
+#endif // _WIN32
+
 // Run an interactive chat loop with the given agent.
 // Reads user input from stdin and prints agent responses to stdout.
 // The loop continues until the user enters an empty line.
@@ -48,3 +54,7 @@ run_chat_loop(agent_cpp::Agent& agent)
 
     printf("\n👋 Goodbye!\n");
 }
+
+#ifdef _WIN32
+#undef isatty
+#endif // _WIN32

examples/shared/logging_callback.h

@@ -4,7 +4,13 @@
 #include "tool_result.h"
 #include <cstdio>
 #include <string>
+
+#ifdef _WIN32
+#include <io.h>
+#define isatty _isatty
+#else
 #include <unistd.h>
+#endif // _WIN32
 
 // Logging callback to display tool execution information.
 // Shared across examples to provide consistent tool call logging.
@@ -47,3 +53,7 @@ class LoggingCallback : public agent_cpp::Callback
         }
     }
 };
+
+#ifdef _WIN32
+#undef isatty
+#endif // _WIN32

examples/shell/shell.cpp

@@ -15,7 +15,16 @@
 #include <iostream>
 #include <memory>
 #include <string>
+
+#ifdef _WIN32
+#include <io.h>
+#include <stdio.h>
+#define isatty _isatty
+#define popen _popen
+#define pclose _pclose
+#else
 #include <unistd.h>
+#endif // _WIN32
 
 using agent_cpp::json;
 using agent_cpp::ToolExecutionSkipped;