1--TEST-- 2gmp_binomial(): Binomial coefficients 3--SKIPIF-- 4<?php if (!extension_loaded('gmp')) die('skip gmp extension not loaded'); ?> 5--FILE-- 6<?php 7 8var_dump(gmp_binomial(10, 5)); 9var_dump(gmp_binomial("10", 5)); 10$n = gmp_init(10); 11var_dump(gmp_binomial($n, 5)); 12 13var_dump(gmp_binomial(10000, 100)); 14 15var_dump(gmp_binomial(0, 0)); 16var_dump(gmp_binomial(0, 1)); 17var_dump(gmp_binomial(1, 0)); 18var_dump(gmp_binomial(1, 1)); 19 20var_dump(gmp_binomial(-1, 5)); // == -(1 + 5 - 1 over 5) 21var_dump(gmp_binomial(-2, 6)); // == (2 + 6 - 1 over 6) 22 23try { 24 var_dump(gmp_binomial(5, -2)); 25} catch (\ValueError $e) { 26 echo $e->getMessage() . \PHP_EOL; 27} 28?> 29--EXPECT-- 30object(GMP)#1 (1) { 31 ["num"]=> 32 string(3) "252" 33} 34object(GMP)#1 (1) { 35 ["num"]=> 36 string(3) "252" 37} 38object(GMP)#2 (1) { 39 ["num"]=> 40 string(3) "252" 41} 42object(GMP)#2 (1) { 43 ["num"]=> 44 string(242) "65208469245472575695415972927215718683781335425416743372210247172869206520770178988927510291340552990847853030615947098118282371982392705479271195296127415562705948429404753632271959046657595132854990606768967505457396473467998111950929802400" 45} 46object(GMP)#2 (1) { 47 ["num"]=> 48 string(1) "1" 49} 50object(GMP)#2 (1) { 51 ["num"]=> 52 string(1) "0" 53} 54object(GMP)#2 (1) { 55 ["num"]=> 56 string(1) "1" 57} 58object(GMP)#2 (1) { 59 ["num"]=> 60 string(1) "1" 61} 62object(GMP)#2 (1) { 63 ["num"]=> 64 string(2) "-1" 65} 66object(GMP)#2 (1) { 67 ["num"]=> 68 string(1) "7" 69} 70gmp_binomial(): Argument #2 ($k) must be greater than or equal to 0 71
