Last change
on this file was 390, checked in by coas-nagasima, 5 years ago |
コードを整理
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File size:
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1 | #include "time_impl.h"
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2 | #include <errno.h>
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3 | #include "libc.h"
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4 |
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5 | struct tm *__localtime_r(const time_t *restrict t, struct tm *restrict tm)
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6 | {
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7 | /* Reject time_t values whose year would overflow int because
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8 | * __secs_to_zone cannot safely handle them. */
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9 | if (*t < INT_MIN * 31622400LL || *t > INT_MAX * 31622400LL) {
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10 | errno = EOVERFLOW;
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11 | return 0;
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12 | }
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13 | __secs_to_zone(*t, 0, &tm->tm_isdst, &tm->__tm_gmtoff, 0, &tm->__tm_zone);
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14 | if (__secs_to_tm((long long)*t + tm->__tm_gmtoff, tm) < 0) {
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15 | errno = EOVERFLOW;
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16 | return 0;
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17 | }
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18 | return tm;
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19 | }
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20 |
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21 | weak_alias(__localtime_r, localtime_r);
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