Last change
on this file since 559 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
380 bytes
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Line | |
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1 | /* |
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2 | * __isinfd(x) returns 1 if x is infinity, else 0; |
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3 | * no branching! |
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4 | * Added by Cygnus Support. |
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5 | */ |
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6 | |
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7 | #include "fdlibm.h" |
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8 | |
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9 | #ifndef _DOUBLE_IS_32BITS |
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10 | |
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11 | int |
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12 | __isinfd (double x) |
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13 | { |
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14 | __int32_t hx,lx; |
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15 | EXTRACT_WORDS(hx,lx,x); |
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16 | hx &= 0x7fffffff; |
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17 | hx |= (__uint32_t)(lx|(-lx))>>31; |
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18 | hx = 0x7ff00000 - hx; |
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19 | return 1 - (int)((__uint32_t)(hx|(-hx))>>31); |
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20 | } |
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21 | |
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22 | #endif /* _DOUBLE_IS_32BITS */ |
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