From: Adhemerval Zanella Date: Wed, 8 Apr 2020 22:51:44 +0000 (-0300) Subject: New exp10f version without SVID compat wrapper X-Git-Tag: glibc-2.32~204 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=be668a8d782ab6bf363d4cdd7086295b5eebb8ea;p=thirdparty%2Fglibc.git New exp10f version without SVID compat wrapper This patch changes the exp10f error handling semantics to only set errno according to POSIX rules. New symbol version is introduced at GLIBC_2.32. The old wrappers are kept for compat symbols. There are some outliers that need special handling: - ia64 provides an optimized implementation of exp10f that uses ia64 specific routines to set SVID compatibility. The new symbol version is aliased to the exp10f one. - m68k also provides an optimized implementation, and the new version uses it instead of the sysdeps/ieee754/flt32 one. - riscv and csky uses the generic template implementation that does not provide SVID support. For both cases a new exp10f version is not added, but rather the symbols version of the generic sysdeps/ieee754/flt32 is adjusted instead. Checked on aarch64-linux-gnu, x86_64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu. --- diff --git a/math/Versions b/math/Versions index d892c5f911b..5b3c3214906 100644 --- a/math/Versions +++ b/math/Versions @@ -590,4 +590,7 @@ libm { totalorderf128; totalordermagf128; } + GLIBC_2.32 { + exp10f; + } } diff --git a/math/w_exp10f.c b/math/w_exp10f.c new file mode 100644 index 00000000000..6e25b021ab5 --- /dev/null +++ b/math/w_exp10f.c @@ -0,0 +1 @@ +/* Empty. */ diff --git a/math/w_exp10f_compat.c b/math/w_exp10f_compat.c index 2ab09406013..ea8f947193d 100644 --- a/math/w_exp10f_compat.c +++ b/math/w_exp10f_compat.c @@ -28,9 +28,9 @@ #if LIBM_SVID_COMPAT float -__exp10f (float x) +__exp10f_compat (float x) { - float z = __ieee754_exp10f (x); + float z = __exp10f (x); if (__builtin_expect (!isfinite (z) || z == 0, 0) && isfinite (x) && _LIB_VERSION != _IEEE_) /* exp10f overflow (146) if x > 0, underflow (147) if x < 0. */ @@ -38,9 +38,9 @@ __exp10f (float x) return z; } -libm_alias_float (__exp10, exp10) +compat_symbol (libm, __exp10f_compat, exp10f, GLIBC_2_1); # if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27) -strong_alias (__exp10f, __pow10f) +strong_alias (__exp10f_compat, __pow10f) compat_symbol (libm, __pow10f, pow10f, GLIBC_2_1); # endif #endif diff --git a/sysdeps/ia64/fpu/e_exp10f.S b/sysdeps/ia64/fpu/e_exp10f.S index 67218c737ff..e82394b7253 100644 --- a/sysdeps/ia64/fpu/e_exp10f.S +++ b/sysdeps/ia64/fpu/e_exp10f.S @@ -218,7 +218,7 @@ LOCAL_OBJECT_END(T_table) .section .text -GLOBAL_IEEE754_ENTRY(exp10f) +GLOBAL_IEEE754_ENTRY(__exp10f) {.mfi @@ -487,11 +487,17 @@ OUT_RANGE_exp10: } ;; -GLOBAL_IEEE754_END(exp10f) +GLOBAL_IEEE754_END(__exp10f) libm_alias_float_other (__exp10, exp10) #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27) -compat_symbol (libm, exp10f, pow10f, GLIBC_2_2) +strong_alias (__exp10f, __pow10f_compat) +compat_symbol (libm, __pow10f_compat, pow10f, GLIBC_2_2) #endif +#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_32) +strong_alias (__exp10f, __exp10f_compat) +compat_symbol (libm, __exp10f_compat, exp10f, GLIBC_2_1) +#endif +versioned_symbol (libm, __exp10f, exp10f, GLIBC_2_32) LOCAL_LIBM_ENTRY(__libm_error_region) diff --git a/sysdeps/ieee754/flt-32/e_exp10f.c b/sysdeps/ieee754/flt-32/e_exp10f.c index 034a9e364ae..f51c499b835 100644 --- a/sysdeps/ieee754/flt-32/e_exp10f.c +++ b/sysdeps/ieee754/flt-32/e_exp10f.c @@ -21,6 +21,8 @@ #include #include #include +#include +#include #include "math_config.h" /* @@ -139,7 +141,7 @@ top13 (float x) } float -__ieee754_exp10f (float x) +__exp10f (float x) { uint32_t abstop; uint64_t ki, t; @@ -195,4 +197,16 @@ __ieee754_exp10f (float x) y = y * s; return (float) y; } +#ifndef __exp10f +strong_alias (__exp10f, __ieee754_exp10f) libm_alias_finite (__ieee754_exp10f, __exp10f) +/* For architectures that already provided exp10f without SVID support, there + is no need to add a new version. */ +#if !LIBM_SVID_COMPAT +# define EXP10F_VERSION GLIBC_2_26 +#else +# define EXP10F_VERSION GLIBC_2_32 +#endif +versioned_symbol (libm, __exp10f, exp10f, EXP10F_VERSION); +libm_alias_float_other (__exp10, exp10) +#endif diff --git a/sysdeps/m68k/m680x0/fpu/e_exp10f.c b/sysdeps/m68k/m680x0/fpu/e_exp10f.c index f58fddd8a6a..0d03f00e068 100644 --- a/sysdeps/m68k/m680x0/fpu/e_exp10f.c +++ b/sysdeps/m68k/m680x0/fpu/e_exp10f.c @@ -1,3 +1,8 @@ +#include #define FUNC __ieee754_exp10f #define FUNC_FINITE __exp10f #include +strong_alias (__ieee754_exp10f, __exp10f) +libm_alias_finite (__ieee754_exp10f, __exp10f) +versioned_symbol (libm, __exp10f, exp10f, GLIBC_2_32); +libm_alias_float_other (__ieee754_exp10, exp10) diff --git a/sysdeps/mach/hurd/i386/libm.abilist b/sysdeps/mach/hurd/i386/libm.abilist index 1a41ae589ff..a19a69ce6ae 100644 --- a/sysdeps/mach/hurd/i386/libm.abilist +++ b/sysdeps/mach/hurd/i386/libm.abilist @@ -1089,3 +1089,4 @@ GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagf64x F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F diff --git a/sysdeps/unix/sysv/linux/aarch64/libm.abilist b/sysdeps/unix/sysv/linux/aarch64/libm.abilist index 62e1fee467d..5362c24e4c4 100644 --- a/sysdeps/unix/sysv/linux/aarch64/libm.abilist +++ b/sysdeps/unix/sysv/linux/aarch64/libm.abilist @@ -1053,3 +1053,4 @@ GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagf64x F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F diff --git a/sysdeps/unix/sysv/linux/alpha/libm.abilist b/sysdeps/unix/sysv/linux/alpha/libm.abilist index 08ac3905a08..650d10ec8e3 100644 --- a/sysdeps/unix/sysv/linux/alpha/libm.abilist +++ b/sysdeps/unix/sysv/linux/alpha/libm.abilist @@ -1110,6 +1110,7 @@ GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagf64x F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 __clog10l F GLIBC_2.4 __finitel F GLIBC_2.4 __fpclassifyl F diff --git a/sysdeps/unix/sysv/linux/arm/be/libm.abilist b/sysdeps/unix/sysv/linux/arm/be/libm.abilist index dd5931f2883..6914b58d76b 100644 --- a/sysdeps/unix/sysv/linux/arm/be/libm.abilist +++ b/sysdeps/unix/sysv/linux/arm/be/libm.abilist @@ -470,6 +470,7 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 _LIB_VERSION D 0x4 GLIBC_2.4 __clog10 F GLIBC_2.4 __clog10f F diff --git a/sysdeps/unix/sysv/linux/arm/le/libm.abilist b/sysdeps/unix/sysv/linux/arm/le/libm.abilist index dd5931f2883..6914b58d76b 100644 --- a/sysdeps/unix/sysv/linux/arm/le/libm.abilist +++ b/sysdeps/unix/sysv/linux/arm/le/libm.abilist @@ -470,6 +470,7 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 _LIB_VERSION D 0x4 GLIBC_2.4 __clog10 F GLIBC_2.4 __clog10f F diff --git a/sysdeps/unix/sysv/linux/hppa/libm.abilist b/sysdeps/unix/sysv/linux/hppa/libm.abilist index e7686d71cfe..6ac2295b05a 100644 --- a/sysdeps/unix/sysv/linux/hppa/libm.abilist +++ b/sysdeps/unix/sysv/linux/hppa/libm.abilist @@ -781,4 +781,5 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 exp2l F diff --git a/sysdeps/unix/sysv/linux/i386/libm.abilist b/sysdeps/unix/sysv/linux/i386/libm.abilist index e67f9d7d27e..0ab740dd97c 100644 --- a/sysdeps/unix/sysv/linux/i386/libm.abilist +++ b/sysdeps/unix/sysv/linux/i386/libm.abilist @@ -1096,3 +1096,4 @@ GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagf64x F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F diff --git a/sysdeps/unix/sysv/linux/ia64/libm.abilist b/sysdeps/unix/sysv/linux/ia64/libm.abilist index 0cf637f2481..c8e8fd71426 100644 --- a/sysdeps/unix/sysv/linux/ia64/libm.abilist +++ b/sysdeps/unix/sysv/linux/ia64/libm.abilist @@ -1026,3 +1026,4 @@ GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagf64x F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist index dd5931f2883..6914b58d76b 100644 --- a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist +++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist @@ -470,6 +470,7 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 _LIB_VERSION D 0x4 GLIBC_2.4 __clog10 F GLIBC_2.4 __clog10f F diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist index f0b17ae485c..c60fdc62987 100644 --- a/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist +++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist @@ -821,3 +821,4 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F diff --git a/sysdeps/unix/sysv/linux/microblaze/be/libm.abilist b/sysdeps/unix/sysv/linux/microblaze/be/libm.abilist index 8dedc9a8a6e..adea0fe4c01 100644 --- a/sysdeps/unix/sysv/linux/microblaze/be/libm.abilist +++ b/sysdeps/unix/sysv/linux/microblaze/be/libm.abilist @@ -782,3 +782,4 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libm.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libm.abilist index 8dedc9a8a6e..adea0fe4c01 100644 --- a/sysdeps/unix/sysv/linux/microblaze/le/libm.abilist +++ b/sysdeps/unix/sysv/linux/microblaze/le/libm.abilist @@ -782,3 +782,4 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F diff --git a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist index a221d7be092..272969a26f5 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist @@ -781,4 +781,5 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 exp2l F diff --git a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist index 823f87277e2..dd0dc6689c0 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist @@ -1053,3 +1053,4 @@ GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagf64x F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F diff --git a/sysdeps/unix/sysv/linux/nios2/libm.abilist b/sysdeps/unix/sysv/linux/nios2/libm.abilist index 64ac932c6ab..4941deefa61 100644 --- a/sysdeps/unix/sysv/linux/nios2/libm.abilist +++ b/sysdeps/unix/sysv/linux/nios2/libm.abilist @@ -782,3 +782,4 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist index 3fab31ff9c8..fc2d142bd5a 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist @@ -827,6 +827,7 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 __clog10l F GLIBC_2.4 __finitel F GLIBC_2.4 __fpclassifyl F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist index b90d28a8feb..e6feaf7ec7d 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist @@ -826,6 +826,7 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 __clog10l F GLIBC_2.4 __finitel F GLIBC_2.4 __fpclassifyl F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist index 1369ab510cb..972c9bc5971 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist @@ -820,6 +820,7 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 __clog10l F GLIBC_2.4 __finitel F GLIBC_2.4 __fpclassifyl F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist index aa45e2639cf..4f8d3c11917 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist @@ -1214,3 +1214,4 @@ GLIBC_2.32 __ufromfpxieee128 F GLIBC_2.32 __y0ieee128 F GLIBC_2.32 __y1ieee128 F GLIBC_2.32 __ynieee128 F +GLIBC_2.32 exp10f F diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist index cd6be8e5849..321810d5a40 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist @@ -1054,6 +1054,7 @@ GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagf64x F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 __clog10l F GLIBC_2.4 __finitel F GLIBC_2.4 __fpclassifyl F diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist index 5291424feba..451a860a83e 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist @@ -1054,6 +1054,7 @@ GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagf64x F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 __clog10l F GLIBC_2.4 __finitel F GLIBC_2.4 __fpclassifyl F diff --git a/sysdeps/unix/sysv/linux/sh/be/libm.abilist b/sysdeps/unix/sysv/linux/sh/be/libm.abilist index de0f1c57c37..a5fb514eaed 100644 --- a/sysdeps/unix/sysv/linux/sh/be/libm.abilist +++ b/sysdeps/unix/sysv/linux/sh/be/libm.abilist @@ -781,4 +781,5 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 exp2l F diff --git a/sysdeps/unix/sysv/linux/sh/le/libm.abilist b/sysdeps/unix/sysv/linux/sh/le/libm.abilist index de0f1c57c37..a5fb514eaed 100644 --- a/sysdeps/unix/sysv/linux/sh/le/libm.abilist +++ b/sysdeps/unix/sysv/linux/sh/le/libm.abilist @@ -781,4 +781,5 @@ GLIBC_2.31 totalordermagf32 F GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 exp2l F diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist index fc52ebf64ec..d81e8a726ba 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist @@ -1061,6 +1061,7 @@ GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagf64x F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F GLIBC_2.4 __clog10l F GLIBC_2.4 __finitel F GLIBC_2.4 __fpclassifyl F diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist index 5288a28533c..3d12376d334 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist @@ -1053,3 +1053,4 @@ GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagf64x F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist index d620e465d25..89c4ac484dc 100644 --- a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist @@ -1087,3 +1087,4 @@ GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagf64x F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist index 44b0eddc506..d3c9cec71a5 100644 --- a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist @@ -1087,3 +1087,4 @@ GLIBC_2.31 totalordermagf32x F GLIBC_2.31 totalordermagf64 F GLIBC_2.31 totalordermagf64x F GLIBC_2.31 totalordermagl F +GLIBC_2.32 exp10f F