diff options
Diffstat (limited to 'sysdeps/ieee754/flt-32/s_rintf.c')
| -rw-r--r-- | sysdeps/ieee754/flt-32/s_rintf.c | 44 |
1 files changed, 25 insertions, 19 deletions
diff --git a/sysdeps/ieee754/flt-32/s_rintf.c b/sysdeps/ieee754/flt-32/s_rintf.c index 34c16ea..627bada 100644 --- a/sysdeps/ieee754/flt-32/s_rintf.c +++ b/sysdeps/ieee754/flt-32/s_rintf.c @@ -20,7 +20,7 @@ #include <math-use-builtins.h> float -__rintf(float x) +__rintf (float x) { #if USE_RINTF_BUILTIN return __builtin_rintf (x); @@ -31,25 +31,31 @@ __rintf(float x) 8.3886080000e+06, /* 0x4b000000 */ -8.3886080000e+06, /* 0xcb000000 */ }; - int32_t i0,j0,sx; - float w,t; - GET_FLOAT_WORD(i0,x); - sx = (i0>>31)&1; - j0 = ((i0>>23)&0xff)-0x7f; - if(j0<23) { - if(j0<0) { - w = TWO23[sx]+x; - t = w-TWO23[sx]; - GET_FLOAT_WORD(i0,t); - SET_FLOAT_WORD(t,(i0&0x7fffffff)|(sx<<31)); - return t; - } - } else { - if(j0==0x80) return x+x; /* inf or NaN */ - else return x; /* x is integral */ + int32_t i0, j0, sx; + float w, t; + GET_FLOAT_WORD (i0, x); + sx = (i0 >> 31) & 1; + j0 = ((i0 >> 23) & 0xff) - 0x7f; + if (j0 < 23) + { + if(j0 < 0) + { + w = TWO23[sx] + x; + t = w - TWO23[sx]; + GET_FLOAT_WORD (i0, t); + SET_FLOAT_WORD (t, (i0 & 0x7fffffff) | (sx << 31)); + return t; } - w = TWO23[sx]+x; - return w-TWO23[sx]; + } + else + { + if (j0 == 0x80) + return x + x; /* inf or NaN */ + else + return x; /* x is integral */ + } + w = TWO23[sx] + x; + return w - TWO23[sx]; #endif /* ! USE_RINTF_BUILTIN */ } #ifndef __rintf |