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 23var_dump(gmp_binomial(5, -2)); 24 25?> 26--EXPECTF-- 27object(GMP)#1 (1) { 28 ["num"]=> 29 string(3) "252" 30} 31object(GMP)#1 (1) { 32 ["num"]=> 33 string(3) "252" 34} 35object(GMP)#2 (1) { 36 ["num"]=> 37 string(3) "252" 38} 39object(GMP)#2 (1) { 40 ["num"]=> 41 string(242) "65208469245472575695415972927215718683781335425416743372210247172869206520770178988927510291340552990847853030615947098118282371982392705479271195296127415562705948429404753632271959046657595132854990606768967505457396473467998111950929802400" 42} 43object(GMP)#2 (1) { 44 ["num"]=> 45 string(1) "1" 46} 47object(GMP)#2 (1) { 48 ["num"]=> 49 string(1) "0" 50} 51object(GMP)#2 (1) { 52 ["num"]=> 53 string(1) "1" 54} 55object(GMP)#2 (1) { 56 ["num"]=> 57 string(1) "1" 58} 59object(GMP)#2 (1) { 60 ["num"]=> 61 string(2) "-1" 62} 63object(GMP)#2 (1) { 64 ["num"]=> 65 string(1) "7" 66} 67 68Warning: gmp_binomial(): k cannot be negative in %s on line %d 69bool(false) 70
