| /** |
| * 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> |
| |
| #if defined(__arm__) || defined(_ARM_) |
| /* This works around a compiler bug */ |
| double __rint_internal( double x ); |
| asm(".def __rint_internal; .scl 2; .type 32; .endef\n" |
| "\t.text\n" |
| "\t.align 4\n" |
| "\t.globl __rint_internal\n" |
| "__rint_internal:\n" |
| "\tvcvtr.s32.f64 s0, d0\n" |
| "\tvcvt.f64.s32 d0, s0\n" |
| "\tbx lr"); |
| #endif /* defined(__arm__) || defined(_ARM_) */ |
| |
| double rint (double x) { |
| double retval = 0.0; |
| #if defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__) |
| __asm__ __volatile__ ("frndint;" : "=t" (retval) : "0" (x)); |
| #elif defined(__arm__) || defined(_ARM_) |
| if (isnan(x) || isinf(x)) |
| return x; |
| retval = __rint_internal(x); |
| #endif |
| return retval; |
| } |
