mirror of
https://github.com/python/cpython
synced 2024-09-19 21:01:47 +00:00
29 lines
899 B
C
29 lines
899 B
C
#include "Python.h"
|
|
#include "_time.h"
|
|
|
|
/* Exposed in timefuncs.h. */
|
|
time_t
|
|
_PyTime_DoubleToTimet(double x)
|
|
{
|
|
time_t result;
|
|
double diff;
|
|
|
|
result = (time_t)x;
|
|
/* How much info did we lose? time_t may be an integral or
|
|
* floating type, and we don't know which. If it's integral,
|
|
* we don't know whether C truncates, rounds, returns the floor,
|
|
* etc. If we lost a second or more, the C rounding is
|
|
* unreasonable, or the input just doesn't fit in a time_t;
|
|
* call it an error regardless. Note that the original cast to
|
|
* time_t can cause a C error too, but nothing we can do to
|
|
* work around that.
|
|
*/
|
|
diff = x - (double)result;
|
|
if (diff <= -1.0 || diff >= 1.0) {
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"timestamp out of range for platform time_t");
|
|
result = (time_t)-1;
|
|
}
|
|
return result;
|
|
}
|