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libc -> libzigc: copysign

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This commit is contained in:
rpkak
2026-01-08 08:19:53 +01:00
parent aa7dac9739
commit 813ae89208
14 changed files with 18 additions and 187 deletions
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lib/c/math.zig
+18
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@@ -32,6 +32,12 @@ comptime {
@export(&nanf, .{ .name = "nanf", .linkage = common.linkage, .visibility = common.visibility });
@export(&nanl, .{ .name = "nanl", .linkage = common.linkage, .visibility = common.visibility });
}
if (builtin.target.isMuslLibC()) {
@export(&copysignf, .{ .name = "copysignf", .linkage = common.linkage, .visibility = common.visibility });
@export(&copysign, .{ .name = "copysign", .linkage = common.linkage, .visibility = common.visibility });
}
@export(&copysignl, .{ .name = "copysignl", .linkage = common.linkage, .visibility = common.visibility });
}
fn isnan(x: f64) callconv(.c) c_int {
@@ -57,3 +63,15 @@ fn nanf(_: [*:0]const c_char) callconv(.c) f32 {
fn nanl(_: [*:0]const c_char) callconv(.c) c_longdouble {
return std.math.nan(c_longdouble);
}
fn copysignf(x: f32, y: f32) callconv(.c) f32 {
return std.math.copysign(x, y);
}
fn copysign(x: f64, y: f64) callconv(.c) f64 {
return std.math.copysign(x, y);
}
fn copysignl(x: c_longdouble, y: c_longdouble) callconv(.c) c_longdouble {
return std.math.copysign(x, y);
}
lib/libc/mingw/math/copysign.c
Vendored
-21
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@@ -1,21 +0,0 @@
/**
* This file has no copyright assigned and is placed in the Public Domain.
* This file is part of the mingw-w64 runtime package.
* No warranty is given; refer to the file DISCLAIMER.PD within this package.
*/
#include <math.h>
typedef union U
{
unsigned int u[2];
double d;
} U;
double copysign(double x, double y)
{
U h,j;
h.d = x;
j.d = y;
h.u[1] = (h.u[1] & 0x7fffffff) | (j.u[1] & 0x80000000);
return h.d;
}
lib/libc/mingw/math/copysignf.c
Vendored
-19
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@@ -1,19 +0,0 @@
/**
* This file has no copyright assigned and is placed in the Public Domain.
* This file is part of the mingw-w64 runtime package.
* No warranty is given; refer to the file DISCLAIMER.PD within this package.
*/
#include <math.h>
typedef union ui_f {
float f;
unsigned int ui;
} ui_f;
float copysignf(float aX, float aY)
{
ui_f x,y;
x.f=aX; y.f=aY;
x.ui= (x.ui & 0x7fffffff) | (y.ui & 0x80000000);
return x.f;
}
lib/libc/mingw/math/x86/copysignl.S
Vendored
-44
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@@ -1,44 +0,0 @@
/**
* This file has no copyright assigned and is placed in the Public Domain.
* This file is part of the mingw-w64 runtime package.
* No warranty is given; refer to the file DISCLAIMER.PD within this package.
*/
/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Changes for long double by Ulrich Drepper <drepper@cygnus.com>
* Public domain.
*/
#include <_mingw_mac.h>
.file "copysignl.S"
.text
#ifdef __x86_64__
.align 8
#else
.align 4
#endif
.globl __MINGW_USYMBOL(copysignl)
.def __MINGW_USYMBOL(copysignl); .scl 2; .type 32; .endef
__MINGW_USYMBOL(copysignl):
#if defined(_AMD64_) || defined(__x86_64__)
movq (%rdx), %rax
movq %rax, (%rcx)
movq 8(%rdx), %rax
movq 8(%r8), %rdx
andq $0x7fff, %rax
andq $0x8000, %rdx
orq %rdx, %rax
movq %rax, 8(%rcx)
movq %rcx, %rax
ret
#elif defined(_X86_) || defined(__i386__)
movl 24(%esp),%edx
movl 12(%esp),%eax
andl $0x8000,%edx
andl $0x7fff,%eax
orl %edx,%eax
movl %eax,12(%esp)
fldt 4(%esp)
ret
#endif
lib/libc/musl/src/math/copysign.c
Vendored
-8
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@@ -1,8 +0,0 @@
#include "libm.h"
double copysign(double x, double y) {
union {double f; uint64_t i;} ux={x}, uy={y};
ux.i &= -1ULL/2;
ux.i |= uy.i & 1ULL<<63;
return ux.f;
}
lib/libc/musl/src/math/copysignf.c
Vendored
-10
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@@ -1,10 +0,0 @@
#include <math.h>
#include <stdint.h>
float copysignf(float x, float y)
{
union {float f; uint32_t i;} ux={x}, uy={y};
ux.i &= 0x7fffffff;
ux.i |= uy.i & 0x80000000;
return ux.f;
}
lib/libc/musl/src/math/copysignl.c
Vendored
-16
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@@ -1,16 +0,0 @@
#include "libm.h"
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double copysignl(long double x, long double y)
{
return copysign(x, y);
}
#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
long double copysignl(long double x, long double y)
{
union ldshape ux = {x}, uy = {y};
ux.i.se &= 0x7fff;
ux.i.se |= uy.i.se & 0x8000;
return ux.f;
}
#endif
lib/libc/musl/src/math/riscv32/copysign.c
Vendored
-15
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@@ -1,15 +0,0 @@
#include <math.h>
#if __riscv_flen >= 64
double copysign(double x, double y)
{
__asm__ ("fsgnj.d %0, %1, %2" : "=f"(x) : "f"(x), "f"(y));
return x;
}
#else
#include "../copysign.c"
#endif
lib/libc/musl/src/math/riscv32/copysignf.c
Vendored
-15
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@@ -1,15 +0,0 @@
#include <math.h>
#if __riscv_flen >= 32
float copysignf(float x, float y)
{
__asm__ ("fsgnj.s %0, %1, %2" : "=f"(x) : "f"(x), "f"(y));
return x;
}
#else
#include "../copysignf.c"
#endif
lib/libc/musl/src/math/riscv64/copysign.c
Vendored
-15
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@@ -1,15 +0,0 @@
#include <math.h>
#if __riscv_flen >= 64
double copysign(double x, double y)
{
__asm__ ("fsgnj.d %0, %1, %2" : "=f"(x) : "f"(x), "f"(y));
return x;
}
#else
#include "../copysign.c"
#endif
lib/libc/musl/src/math/riscv64/copysignf.c
Vendored
-15
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@@ -1,15 +0,0 @@
#include <math.h>
#if __riscv_flen >= 32
float copysignf(float x, float y)
{
__asm__ ("fsgnj.s %0, %1, %2" : "=f"(x) : "f"(x), "f"(y));
return x;
}
#else
#include "../copysignf.c"
#endif
src/libs/mingw.zig
-1
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@@ -957,7 +957,6 @@ const mingw32_x86_src = [_][]const u8{
"math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "atan2l.c",
"math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "atanhl.c",
"math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "atanl.c",
"math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "copysignl.S",
"math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "cosl.c",
"math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "cosl_internal.S",
"math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "cossinl.c",
src/libs/musl.zig
-7
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@@ -856,9 +856,6 @@ const src_files = [_][]const u8{
"musl/src/math/cbrt.c",
"musl/src/math/cbrtf.c",
"musl/src/math/cbrtl.c",
"musl/src/math/copysign.c",
"musl/src/math/copysignf.c",
"musl/src/math/copysignl.c",
"musl/src/math/__cos.c",
"musl/src/math/__cosdf.c",
"musl/src/math/cosh.c",
@@ -1048,14 +1045,10 @@ const src_files = [_][]const u8{
"musl/src/math/rint.c",
"musl/src/math/rintf.c",
"musl/src/math/rintl.c",
"musl/src/math/riscv32/copysign.c",
"musl/src/math/riscv32/copysignf.c",
"musl/src/math/riscv32/fma.c",
"musl/src/math/riscv32/fmaf.c",
"musl/src/math/riscv32/sqrt.c",
"musl/src/math/riscv32/sqrtf.c",
"musl/src/math/riscv64/copysign.c",
"musl/src/math/riscv64/copysignf.c",
"musl/src/math/riscv64/fma.c",
"musl/src/math/riscv64/fmaf.c",
"musl/src/math/riscv64/sqrt.c",
src/libs/wasi_libc.zig
-1
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@@ -710,7 +710,6 @@ const libc_top_half_src_files = [_][]const u8{
"musl/src/math/cbrt.c",
"musl/src/math/cbrtf.c",
"musl/src/math/cbrtl.c",
"musl/src/math/copysignl.c",
"musl/src/math/__cos.c",
"musl/src/math/__cosdf.c",
"musl/src/math/coshl.c",