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-rw-r--r--src/setjmp/_setjmp.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/setjmp/_setjmp.c b/src/setjmp/_setjmp.c
index 922a36dc..a2537915 100644
--- a/src/setjmp/_setjmp.c
+++ b/src/setjmp/_setjmp.c
@@ -1,9 +1,28 @@
#include <setjmp.h>
+/** save program state **/
+
int _setjmp(jmp_buf env)
{
return setjmp(env);
}
+
+/***
+saves the current state, without the signal mask, of the calling environment
+in the TYPEDEF(jmp_buf) ARGUMENT(env).
+***/
+
/*
+CONSTRAINT: entire controlling expression of a selection or iteration statement
+CONSTRAINT: one operand of a relational or equality operator which is the entire controlling expression of a selction or iteration statement
+CONSTRAINT: the operand of a unary ! as the entire controlling expression of a selection or iteration statement
+CONSTRAINT: an entire expression statement
+
+UNSPECIFIED(Whether THIS() is a macro or identifier with external linkage)
+
+UNDEFINED(A macro definition of THIS() is suppressed in order to access an actual function)
+UNDEFINED(A program defines an external identifier named LITERAL(setjmp))
+
XOPEN(400)
+XOBSOLETE(700, FUNCTION(siglongjmp))
*/