Line data    Source code

       1             : /* File: u8_interval.inl; Copyright and License: see below */
       2             : 
       3             : #include <math.h>
       4             : 
       5             : static inline u8_interval_t u8_interval_new_void()
       6             : {
       7             :     return (u8_interval_t){ .low = NAN, .high = NAN };
       8             : }
       9             : 
      10         120 : static inline u8_interval_t u8_interval_new_unordered ( double a, double b )
      11             : {
      12         120 :     return ( a < b ) ? (u8_interval_t){ .low = a, .high = b } : (u8_interval_t){ .low = b, .high = a };
      13             : }
      14             : 
      15          14 : static inline u8_interval_t u8_interval_new ( double low, double high )
      16             : {
      17          14 :     assert( low < high );
      18          14 :     return (u8_interval_t){ .low = low, .high = high };
      19             : }
      20             : 
      21          60 : static inline u8_interval_t u8_interval_new_intersect ( const u8_interval_t *a, const u8_interval_t *b )
      22             : {
      23             :     u8_interval_t result;
      24             : 
      25          60 :     if (( (*a).high < (*b).low )||( (*a).low > (*b).high ))
      26           4 :     {
      27             :         /* there is no overlap */
      28           4 :         result = (u8_interval_t){ .low = NAN, .high = NAN };
      29             :     }
      30             :     else
      31             :     {
      32             :         /* there is an overlap, lower border is the max of the low values, upper border is the min of the high values: */
      33          56 :         result = (u8_interval_t){ .low = fmax( (*a).low, (*b).low ), .high = fmin( (*a).high, (*b).high ) };
      34             :     }
      35             : 
      36          60 :     return result;
      37             : }
      38             : 
      39          60 : static inline bool u8_interval_is_valid ( const u8_interval_t *this_ )
      40             : {
      41          60 :     return (( ! isnan( (*this_).low ) )&&( ! isnan( (*this_).high ) ));
      42             : }
      43             : 
      44             : static inline double u8_interval_get_low ( const u8_interval_t *this_ )
      45             : {
      46             :     return (*this_).low;
      47             : }
      48             : 
      49             : static inline double u8_interval_get_high ( const u8_interval_t *this_ )
      50             : {
      51             :     return (*this_).high;
      52             : }
      53             : 
      54          60 : static inline double u8_interval_get_size ( const u8_interval_t *this_ )
      55             : {
      56          60 :     return u8_interval_is_valid( this_ ) ? ( (*this_).high - (*this_).low ) : 0.0;
      57             : }
      58             : 
      59             : 
      60             : /*
      61             : Copyright 2025-2025 Andreas Warnke
      62             : 
      63             : Licensed under the Apache License, Version 2.0 (the "License");
      64             : you may not use this file except in compliance with the License.
      65             : You may obtain a copy of the License at
      66             : 
      67             :     http://www.apache.org/licenses/LICENSE-2.0
      68             : 
      69             : Unless required by applicable law or agreed to in writing, software
      70             : distributed under the License is distributed on an "AS IS" BASIS,
      71             : WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      72             : See the License for the specific language governing permissions and
      73             : limitations under the License.
      74             : */