usr/share/man/cat3/siglongjmp.0

SETJMP(3)                   BSD Programmer's Manual                  SETJMP(3)

N\bNA\bAM\bME\bE
     s\bsi\big\bgs\bse\bet\btj\bjm\bmp\bp, s\bsi\big\bgl\blo\bon\bng\bgj\bjm\bmp\bp, s\bse\bet\btj\bjm\bmp\bp, l\blo\bon\bng\bgj\bjm\bmp\bp, _\b_s\bse\bet\btj\bjm\bmp\bp, _\b_l\blo\bon\bng\bgj\bjm\bmp\bp l\blo\bon\bng\bgj\bjm\bmp\bpe\ber\brr\bro\bor\br -
     non-local jumps

S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
     #\b#i\bin\bnc\bcl\blu\bud\bde\be <\b<s\bse\bet\btj\bjm\bmp\bp.\b.h\bh>\b>

     _\bi_\bn_\bt
     s\bsi\big\bgs\bse\bet\btj\bjm\bmp\bp(_\bs_\bi_\bg_\bj_\bm_\bp_\b__\bb_\bu_\bf _\be_\bn_\bv, _\bi_\bn_\bt _\bs_\ba_\bv_\be_\bm_\ba_\bs_\bk);

     _\bv_\bo_\bi_\bd
     s\bsi\big\bgl\blo\bon\bng\bgj\bjm\bmp\bp(_\bs_\bi_\bg_\bj_\bm_\bp_\b__\bb_\bu_\bf _\be_\bn_\bv, _\bi_\bn_\bt _\bv_\ba_\bl);

     _\bi_\bn_\bt
     s\bse\bet\btj\bjm\bmp\bp(_\bj_\bm_\bp_\b__\bb_\bu_\bf _\be_\bn_\bv);

     _\bv_\bo_\bi_\bd
     l\blo\bon\bng\bgj\bjm\bmp\bp(_\bj_\bm_\bp_\b__\bb_\bu_\bf _\be_\bn_\bv, _\bi_\bn_\bt _\bv_\ba_\bl);

     _\bi_\bn_\bt
     _\b_s\bse\bet\btj\bjm\bmp\bp(_\bj_\bm_\bp_\b__\bb_\bu_\bf _\be_\bn_\bv);

     _\bv_\bo_\bi_\bd
     _\b_l\blo\bon\bng\bgj\bjm\bmp\bp(_\bj_\bm_\bp_\b__\bb_\bu_\bf _\be_\bn_\bv, _\bi_\bn_\bt _\bv_\ba_\bl);

     _\bv_\bo_\bi_\bd
     l\blo\bon\bng\bgj\bjm\bmp\bpe\ber\brr\bro\bor\br(_\bv_\bo_\bi_\bd);

D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
     The s\bsi\big\bgs\bse\bet\btj\bjm\bmp\bp(), s\bse\bet\btj\bjm\bmp\bp(), and _\b_s\bse\bet\btj\bjm\bmp\bp() functions save their calling en-
     vironment in _\be_\bn_\bv. Each of these functions returns 0.

     The corresponding l\blo\bon\bng\bgj\bjm\bmp\bp() functions restore the environment saved by
     their most recent respective invocations of the s\bse\bet\btj\bjm\bmp\bp() function.  They
     then return so that program execution continues as if the corresponding
     invocation of the s\bse\bet\btj\bjm\bmp\bp() call had just returned  the value specified by
     _\bv_\ba_\bl, instead of 0.

     Pairs of calls may be intermixed, i.e. both s\bsi\big\bgs\bse\bet\btj\bjm\bmp\bp() and s\bsi\big\bgl\blo\bon\bng\bgj\bjm\bmp\bp()
     and s\bse\bet\btj\bjm\bmp\bp() and l\blo\bon\bng\bgj\bjm\bmp\bp() combinations may be used in the same program,
     however, individual calls may not, e.g. the _\be_\bn_\bv argument to s\bse\bet\btj\bjm\bmp\bp() may
     not be passed to s\bsi\big\bgl\blo\bon\bng\bgj\bjm\bmp\bp().

     The l\blo\bon\bng\bgj\bjm\bmp\bp() routines may not be called after the routine which called
     the s\bse\bet\btj\bjm\bmp\bp() routines returns.

     All accessible objects have values as of the time l\blo\bon\bng\bgj\bjm\bmp\bp() routine was
     called, except that the values of objects of automatic storage invocation
     duration that do not have the _\bv_\bo_\bl_\ba_\bt_\bi_\bl_\be type and have been changed between
     the s\bse\bet\btj\bjm\bmp\bp() invocation and l\blo\bon\bng\bgj\bjm\bmp\bp() call are indeterminate.

     The s\bse\bet\btj\bjm\bmp\bp()/l\blo\bon\bng\bgj\bjm\bmp\bp() pairs save and restore the signal mask while
     _\b_s\bse\bet\btj\bjm\bmp\bp()/_\b_l\blo\bon\bng\bgj\bjm\bmp\bp() pairs save and restore only the register set and the
     stack.  (See s\bsi\big\bgm\bma\bas\bsk\bk(_\b2).)

     The s\bsi\big\bgs\bse\bet\btj\bjm\bmp\bp()/s\bsi\big\bgl\blo\bon\bng\bgj\bjm\bmp\bp() function pairs save and restore the signal
     mask if the argument _\bs_\ba_\bv_\be_\bm_\ba_\bs_\bk is non-zero, otherwise only the register
     set and the stack are saved.

E\bER\bRR\bRO\bOR\bRS\bS
     If the contents of the _\be_\bn_\bv are corrupted, or correspond to an environment
     that has already returned, the l\blo\bon\bng\bgj\bjm\bmp\bp() routine calls the routine
     l\blo\bon\bng\bgj\bjm\bmp\bpe\ber\brr\bro\bor\br(_\b3).  If l\blo\bon\bng\bgj\bjm\bmp\bpe\ber\brr\bro\bor\br() returns the program is aborted (see
     abort(2)).  The default version of l\blo\bon\bng\bgj\bjm\bmp\bpe\ber\brr\bro\bor\br() prints the message
     ``longjmp botch'' to standard error and returns.  User programs wishing
     to exit more gracefully should write their own versions of
     l\blo\bon\bng\bgj\bjm\bmp\bpe\ber\brr\bro\bor\br().

S\bSE\bEE\bE A\bAL\bLS\bSO\bO
     sigaction(2),  sigaltstack(2),  signal(3)

S\bST\bTA\bAN\bND\bDA\bAR\bRD\bDS\bS
     The s\bse\bet\btj\bjm\bmp\bp() and l\blo\bon\bng\bgj\bjm\bmp\bp() functions conform to ANSI C X3.159-1989
     (``ANSI C ''). The s\bsi\big\bgs\bse\bet\btj\bjm\bmp\bp() and s\bsi\big\bgl\blo\bon\bng\bgj\bjm\bmp\bp() functions conform to IEEE
     Std1003.1-1988 (``POSIX'').

4th Berkeley Distribution        June 4, 1993                                2