From 42deccd94fe2a1c5ef6e181ee4c5128872182046 Mon Sep 17 00:00:00 2001 From: ruki Date: Sun, 21 Jun 2020 10:07:17 +0800 Subject: improve math.inf --- xmake/core/base/math.lua | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) (limited to 'xmake/core/base/math.lua') diff --git a/xmake/core/base/math.lua b/xmake/core/base/math.lua index 2cd53a21f..c46982328 100644 --- a/xmake/core/base/math.lua +++ b/xmake/core/base/math.lua @@ -24,16 +24,14 @@ local math = math or {} -- init constants math.nan = math.log(-1) math.e = math.exp(1) +math.inf = 1/0 -- @see http://lua-users.org/wiki/InfAndNanComparisons -- check a number is int -- -- @returns true for int, otherwise false -- function math:isint() - - -- check assert(type(self) == "number", "number expacted") - return self == math.floor(self) and self ~= math.huge and self ~= -math.huge end @@ -42,13 +40,10 @@ end -- @returns 1 for inf, -1 for -inf, otherwise false -- function math:isinf() - - -- check assert(type(self) == "number", "number expacted") - - if self == math.huge then + if self == math.inf then return 1 - elseif self == -math.huge then + elseif self == -math.inf then return -1 else return false @@ -60,10 +55,7 @@ end -- @returns true for nan, otherwise false -- function math:isnan() - - -- check assert(type(self) == "number", "number expacted") - return self ~= self end -- cgit v1.3.1