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Re: CVS commit: src/lib/libc/time
On Thu, 01 Aug 2013, David Holland wrote:
(I thought time_t was required to be an integer type, but I suppose
there's some legacy platform where it isn't.)
C99 requires time_t to be an arithmetic type.
C99 section 7.23.1 point 3 "The types declared are ... clock_t and
time_t which are arithmetic types capable of representing
POSIX adds that time_t must be an integer type.
"clock_t shall be an integer or real-floating type. [CX] [Option
Start] time_t shall be an integer type. [Option End]"
(The "[CX][Option Start]...[Option End]" just means "Extension to he
ISO C standard".)
The tzcode implementation goes to some trouble to be portable to
environments with integer or floating point types for time_t.
--apb (Alan Barrett)
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