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-rw-r--r--modules/fdlibm/patches/14_do_not_use_hexadecimal_floating_point_number.patch68
1 files changed, 68 insertions, 0 deletions
diff --git a/modules/fdlibm/patches/14_do_not_use_hexadecimal_floating_point_number.patch b/modules/fdlibm/patches/14_do_not_use_hexadecimal_floating_point_number.patch
new file mode 100644
index 0000000000..151a7a3b11
--- /dev/null
+++ b/modules/fdlibm/patches/14_do_not_use_hexadecimal_floating_point_number.patch
@@ -0,0 +1,68 @@
+diff --git a/e_exp.cpp b/e_exp.cpp
+--- a/e_exp.cpp
++++ b/e_exp.cpp
+@@ -146,14 +146,17 @@ __ieee754_exp(double x) /* default IEEE double exp */
+ if(k >= -1021)
+ INSERT_WORDS(twopk,((u_int32_t)(0x3ff+k))<<20, 0);
+ else
+ INSERT_WORDS(twopk,((u_int32_t)(0x3ff+(k+1000)))<<20, 0);
+ c = x - t*(P1+t*(P2+t*(P3+t*(P4+t*P5))));
+ if(k==0) return one-((x*c)/(c-2.0)-x);
+ else y = one-((lo-(x*c)/(2.0-c))-hi);
+ if(k >= -1021) {
+- if (k==1024) return y*2.0*0x1p1023;
++ if (k==1024) {
++ double const_0x1p1023 = pow(2, 1023);
++ return y*2.0*const_0x1p1023;
++ }
+ return y*twopk;
+ } else {
+ return y*twopk*twom1000;
+ }
+ }
+diff --git a/s_expm1.cpp b/s_expm1.cpp
+--- a/s_expm1.cpp
++++ b/s_expm1.cpp
+@@ -192,17 +192,20 @@ expm1(double x)
+ e -= hxs;
+ if(k== -1) return 0.5*(x-e)-0.5;
+ if(k==1) {
+ if(x < -0.25) return -2.0*(e-(x+0.5));
+ else return one+2.0*(x-e);
+ }
+ if (k <= -2 || k>56) { /* suffice to return exp(x)-1 */
+ y = one-(e-x);
+- if (k == 1024) y = y*2.0*0x1p1023;
++ if (k == 1024) {
++ double const_0x1p1023 = pow(2, 1023);
++ y = y*2.0*const_0x1p1023;
++ }
+ else y = y*twopk;
+ return y-one;
+ }
+ t = one;
+ if(k<20) {
+ SET_HIGH_WORD(t,0x3ff00000 - (0x200000>>k)); /* t=1-2^-k */
+ y = t-(e-x);
+ y = y*twopk;
+--- a/s_exp2.cpp 2022-12-11 21:26:36.045643147 -0500
++++ b/s_exp2.cpp_new 2022-12-11 21:28:42.058769925 -0500
+@@ -381,14 +381,16 @@
+ INSERT_WORDS(twopk, 0x3ff00000 + k, 0);
+ else
+ INSERT_WORDS(twopkp1000, 0x3ff00000 + k + (1000 << 20), 0);
+ r = t + t * z * (P1 + z * (P2 + z * (P3 + z * (P4 + z * P5))));
+
+ /* Scale by 2**(k>>20). */
+ if(k >= -(1021 << 20)) {
+- if (k == 1024 << 20)
+- return (r * 2.0 * 0x1p1023);
++ if (k == 1024 << 20) {
++ double const_0x1p1023 = pow(2, 1023);
++ return (r * 2.0 * const_0x1p1023);
++ }
+ return (r * twopk);
+ } else {
+ return (r * twopkp1000 * twom1000);
+ }
+ }