Mercurial > hg > nginx-quic
changeset 1964:a3e84e78e785
comment Gauss' formula
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Thu, 10 Apr 2008 09:37:12 +0000 |
parents | 957085b56da3 |
children | 14463ae77723 |
files | src/http/ngx_http_parse_time.c |
diffstat | 1 files changed, 14 insertions(+), 5 deletions(-) [+] |
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--- a/src/http/ngx_http_parse_time.c +++ b/src/http/ngx_http_parse_time.c @@ -240,7 +240,7 @@ ngx_http_parse_time(u_char *value, size_ /* * shift new year to March 1 and start months from 1 (not 0), - * it is needed for Gauss's formula + * it is needed for Gauss' formula */ if (--month <= 0) { @@ -248,11 +248,20 @@ ngx_http_parse_time(u_char *value, size_ year -= 1; } - /* Gauss's formula for Grigorian days from March 1, 1 BC */ + /* Gauss' formula for Grigorian days since March 1, 1 BC */ + + return ( + /* days in years including leap years since March 1, 1 BC */ + + 365 * year + year / 4 - year / 100 + year / 400 - return (365 * year + year / 4 - year / 100 + year / 400 - + 367 * month / 12 - 31 - + day + /* days before the month */ + + + 367 * month / 12 - 30 + + /* days before the day */ + + + day - 1 /* * 719527 days were between March 1, 1 BC and March 1, 1970,