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added hcl_add_ntime()/hcl_sub_ntime()

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hyung-hwan
2020-09-03 06:21:01 +00:00
parent 52aa942508
commit e8ac460f59
3 changed files with 147 additions and 2 deletions
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28
lib/hcl-utl.h
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@ -758,6 +758,34 @@ HCL_EXPORT int hcl_ufmt_out (
...
);
/* =========================================================================
* TIME CALCULATION WITH OVERFLOW/UNDERFLOW DETECTION
* ========================================================================= */
/**
* The hcl_add_ntime() function adds two time structures pointed to by \a x and \a y
* and stores the result in the structure pointed to by \a z. If it detects overflow/
* underflow, it stores the largest/least possible value respectively.
* You may use the HCL_ADD_NTIME() macro if overflow/underflow check isn't needed.
*/
HCL_EXPORT void hcl_add_ntime (
hcl_ntime_t* z,
const hcl_ntime_t* x,
const hcl_ntime_t* y
);
/**
* The hcl_sub_ntime() function subtracts the time value \a y from the time value \a x
* and stores the result in the structure pointed to by \a z. If it detects overflow/
* underflow, it stores the largest/least possible value respectively.
* You may use the HCL_SUB_NTIME() macro if overflow/underflow check isn't needed.
*/
HCL_EXPORT void hcl_sub_ntime (
hcl_ntime_t* z,
const hcl_ntime_t* x,
const hcl_ntime_t* y
);
/* =========================================================================
* BIT SWAP
* ========================================================================= */