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| -rw-r--r-- | src/library.js | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/library.js b/src/library.js index 92907c55..a5166c72 100644 --- a/src/library.js +++ b/src/library.js @@ -5507,6 +5507,14 @@ LibraryManager.library = { return -a; }, copysignf: 'copysign', + __signbit__deps: ['copysign'], + __signbit: function(x) { + // We implement using copysign so that we get support + // for negative zero (once copysign supports that). + return _copysign(1.0, x) < 0; + }, + __signbitf: '__signbit', + __signbitd: '__signbit', hypot: function(a, b) { return Math.sqrt(a*a + b*b); }, |