From b69f695acedd4ce2798ef9ea28d834ceccc789bd Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Tue, 13 Mar 2012 01:17:53 -0400
Subject: first commit of the new libm!

thanks to the hard work of Szabolcs Nagy (nsz), identifying the best
(from correctness and license standpoint) implementations from freebsd
and openbsd and cleaning them up! musl should now fully support c99
float and long double math functions, and has near-complete complex
math support. tgmath should also work (fully on gcc-compatible
compilers, and mostly on any c99 compiler).

based largely on commit 0376d44a890fea261506f1fc63833e7a686dca19 from
nsz's libm git repo, with some additions (dummy versions of a few
missing long double complex functions, etc.) by me.

various cleanups still need to be made, including re-adding (if
they're correct) some asm functions that were dropped.
---
 src/stdlib/frexp.c  | 23 -----------------------
 src/stdlib/frexpf.c | 23 -----------------------
 src/stdlib/frexpl.c | 37 -------------------------------------
 3 files changed, 83 deletions(-)
 delete mode 100644 src/stdlib/frexp.c
 delete mode 100644 src/stdlib/frexpf.c
 delete mode 100644 src/stdlib/frexpl.c

(limited to 'src/stdlib')

diff --git a/src/stdlib/frexp.c b/src/stdlib/frexp.c
deleted file mode 100644
index ae82cb30..00000000
--- a/src/stdlib/frexp.c
+++ /dev/null
@@ -1,23 +0,0 @@
-#include <math.h>
-#include <inttypes.h>
-
-double frexp(double x, int *e)
-{
-	union { double d; uint64_t i; } y = { x };
-	int ee = y.i>>52 & 0x7ff;
-
-	if (!ee) {
-		if (x) {
-			x = frexp(x*0x1p64, e);
-			*e -= 64;
-		} else *e = 0;
-		return x;
-	} else if (ee == 0x7ff) {
-		return x;
-	}
-
-	*e = ee - 0x3fe;
-	y.i &= 0x800fffffffffffffull;
-	y.i |= 0x3fe0000000000000ull;
-	return y.d;
-}
diff --git a/src/stdlib/frexpf.c b/src/stdlib/frexpf.c
deleted file mode 100644
index ee5e910a..00000000
--- a/src/stdlib/frexpf.c
+++ /dev/null
@@ -1,23 +0,0 @@
-#include <math.h>
-#include <inttypes.h>
-
-float frexpf(float x, int *e)
-{
-	union { float f; uint32_t i; } y = { x };
-	int ee = y.i>>23 & 0xff;
-
-	if (!ee) {
-		if (x) {
-			x = frexpf(x*0x1p64, e);
-			*e -= 64;
-		} else *e = 0;
-		return x;
-	} else if (ee == 0xff) {
-		return x;
-	}
-
-	*e = ee - 0x7e;
-	y.i &= 0x807ffffful;
-	y.i |= 0x3f000000ul;
-	return y.f;
-}
diff --git a/src/stdlib/frexpl.c b/src/stdlib/frexpl.c
deleted file mode 100644
index 3472bf70..00000000
--- a/src/stdlib/frexpl.c
+++ /dev/null
@@ -1,37 +0,0 @@
-#include <math.h>
-#include <inttypes.h>
-#include <float.h>
-
-#if LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
-
-/* This version is for 80-bit little endian long double */
-
-long double frexpl(long double x, int *e)
-{
-	union { long double ld; uint16_t hw[5]; } y = { x };
-	int ee = y.hw[4]&0x7fff;
-
-	if (!ee) {
-		if (x) {
-			x = frexpl(x*0x1p64, e);
-			*e -= 64;
-		} else *e = 0;
-		return x;
-	} else if (ee == 0x7fff) {
-		return x;
-	}
-
-	*e = ee - 0x3ffe;
-	y.hw[4] &= 0x8000;
-	y.hw[4] |= 0x3ffe;
-	return y.ld;
-}
-
-#else
-
-long double frexpl(long double x, int *e)
-{
-	return frexp(x, e);
-}
-
-#endif
-- 
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