add skeleton of things from C11

1 files changed, 45 insertions, 0 deletions

diff --git a/src/stdlib/quick_exit.c b/src/stdlib/quick_exit.c
new file mode 100644
index 00000000..25937325
--- /dev/null
+++ b/src/stdlib/quick_exit.c
@@ -0,0 +1,45 @@
+#include <stdlib.h>
+#include <limits.h>
+#include <stddef.h>
+#include "_stdlib.h"
+
+/** cause normal quick program termination **/
+_Noreturn void quick_exit(int status)
+{
+	/* execute all at_quick_exit() registered functions in reverse order */
+	while (__stdlib.at_quick_exit) {
+		__stdlib.at_quick_exit->fn();
+		__stdlib.at_quick_exit = __stdlib.at_quick_exit->prev;
+	}
+
+	fflush(NULL);
+	// fclose(all the things);
+	// remove(all the tmpfile()s);
+	/* TODO */
+	/* __syscall(exit, status); */
+	_Exit(status);
+}
+
+/***
+The fn(quick_exit) function causes the program to terminate normally, returning
+the value arg(status) to the host environment.
+
+First, all functions registered by fn(at_quick_exit) are called in the reverse
+order in which they were registered.
+
+Then, all open streams with unwritten buffered data are flushed. All open
+streams are closed. All temporary files created by fn(tmpfile) are removed.
+***/
+
+/* UNSPECIFIED: - */
+/* UNDEFINED: calls to fn(longjmp) in a registered handler */
+/* UNDEFINED: calling fn(quick_exit) twice */
+/* UNDEFINED: calling fn(quick_exit) and fn(exit) twice */
+/* UNDEFINED: signals during fn(quick_exit) */
+/* IMPLEMENTATION: the successful termination value returned to the host environment when arg(status) is 0 of macro(EXIT_SUCESS) */
+/* IMPLEMENTATION: the unsuccessful termination value returned to the host environment when arg(status) is macro(EXIT_FAILURE) */
+/* LOCALE: - */
+
+/*
+STDC(201112)
+*/