Bug #7744 ยป 242.patch
| time.c | ||
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static void
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time_overflow_p(time_t *secp, long *nsecp)
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{
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time_t tmp, sec = *secp;
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time_t sec = *secp;
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long nsec = *nsecp;
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if (nsec >= 1000000000) { /* nsec positive overflow */
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tmp = sec + nsec / 1000000000;
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nsec %= 1000000000;
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if (sec > 0 && tmp < 0) {
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if (sec > TIMET_MAX - nsec / 1000000000) {
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rb_raise(rb_eRangeError, "out of Time range");
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}
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sec = tmp;
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sec += nsec / 1000000000;
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nsec %= 1000000000;
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}
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if (nsec < 0) { /* nsec negative overflow */
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tmp = sec + NDIV(nsec,1000000000); /* negative div */
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nsec = NMOD(nsec,1000000000); /* negative mod */
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if (sec < 0 && tmp > 0) {
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if (sec < TIMET_MIN - NDIV(nsec,1000000000)) {
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rb_raise(rb_eRangeError, "out of Time range");
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}
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sec = tmp;
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sec += NDIV(nsec,1000000000); /* negative div */
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nsec = NMOD(nsec,1000000000); /* negative mod */
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}
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#ifndef NEGATIVE_TIME_T
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if (sec < 0)
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-
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| ext/openssl/ossl.c | ||
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string2hex(const unsigned char *buf, int buf_len, char **hexbuf, int *hexbuf_len)
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{
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static const char hex[]="0123456789abcdef";
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int i, len = 2 * buf_len;
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int i, len;
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if (buf_len < 0 || len < buf_len) { /* PARANOIA? */
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if (buf_len < 0 || buf_len > INT_MAX / 2) { /* PARANOIA? */
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return -1;
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}
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len = 2 * buf_len;
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if (!hexbuf) { /* if no buf, return calculated len */
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if (hexbuf_len) {
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*hexbuf_len = len;
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-
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| ext/bigdecimal/bigdecimal.c | ||
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return VpConstOne;
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}
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#define SIGNED_VALUE_MAX (SIGNED_VALUE)((~(VALUE)0) >> 1)
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#define SIGNED_VALUE_MIN (SIGNED_VALUE)(~((~(VALUE)0) >> 1))
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/* If exponent overflows,then raise exception or returns 0 */
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static int
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AddExponent(Real *a, SIGNED_VALUE n)
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{
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SIGNED_VALUE e = a->exponent;
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SIGNED_VALUE m = e+n;
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SIGNED_VALUE eb, mb;
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if(e>0) {
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if(n>0) {
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mb = m*(SIGNED_VALUE)BASE_FIG;
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eb = e*(SIGNED_VALUE)BASE_FIG;
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if(mb<eb) goto overflow;
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}
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} else if(n<0) {
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mb = m*(SIGNED_VALUE)BASE_FIG;
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eb = e*(SIGNED_VALUE)BASE_FIG;
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if(mb>eb) goto underflow;
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if (n > 0) {
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if (e > SIGNED_VALUE_MAX / BASE_FIG - n)
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goto overflow;
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} else {
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if (e < SIGNED_VALUE_MIN / BASE_FIG - n)
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goto underflow;
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}
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a->exponent = m;
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a->exponent = e + n;
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return 1;
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/* Overflow/Underflow ==> Raise exception or returns 0 */
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