コードの修正

Author: K10-K10

reference/csignal/sigill.md

@@ -16,7 +16,7 @@
 #include <csignal>
 #include <cstdlib>
 
-void handler(int sig)
+void handler(int)
 {
   std::_Exit(0);
 }
@@ -25,12 +25,10 @@ int main()
 {
   std::signal(SIGILL, handler);
   std::raise(SIGILL);
-  return 0;
 }
 ```
 * SIGILL[color ff0000]
 
 ### 出力
 ```
-SIGILL received
 ```

reference/csignal/sigint.md

@@ -14,29 +14,24 @@
 ## 例
 ```cpp example
 #include <csignal>
-#include <iostream>
+#include <cstdlib>
 
 volatile std::sig_atomic_t flag = 0;
 
-void handler(int sig)
+void handler(int)
 {
-  flag = 1;
+  std::_Exit(0);
 }
 
 int main()
 {
   std::signal(SIGINT, handler);
   std::raise(SIGINT);
-  if (flag)
-  {
-    std::cout << "SIGINT received" << std::endl;
-  }
   return 0;
 }
 ```
 * SIGINT[color ff0000]
 
 ### 出力
 ```
-SIGINT received
 ```

reference/csignal/sigterm.md

@@ -16,7 +16,7 @@
 #include <csignal>
 #include <cstdlib>
 
-void handler(int sig)
+void handler(int)
 {
   std::_Exit(0);
 }