diff options
Diffstat (limited to 'src/setjmp/setjmp.c')
-rw-r--r-- | src/setjmp/setjmp.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/setjmp/setjmp.c b/src/setjmp/setjmp.c new file mode 100644 index 00000000..c578d2a9 --- /dev/null +++ b/src/setjmp/setjmp.c @@ -0,0 +1,32 @@ +#include <setjmp.h> + +int setjmp(jmp_buf env) +{ + extern int __setjmp(jmp_buf); + /* + RETURN(0, the environment has been saved by THIS()) + RETURN(NONZERO, the environment has been restored by FUNCTION(longjmp)) + */ + return __setjmp(env); +} + +/** save program state **/ + +/*** +saves the current state 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)) +*/ +/* +STDC(1) +*/ |