__setfpucw

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Version: 1997-03-08 (openSuse - 09/10/07)

Section: 3 (Bibliothèques de fonctions)

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__setfpucw - i386¥¢¡¼¥­¥Æ¥¯¥Á¥ã¤Ë¤ª¤±¤ëfpu¤Î¥³¥ó¥È¥í¡¼¥ë¥ï¡¼¥É¤ÎÀßÄê (obsolete)

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#include <i386/fpu_control.h>

void __setfpucw((unsigned short) control_word);

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__setfpucw() ¤Ï¡¢i386¥¢¡¼¥­¥Æ¥¯¥Á¥ã¤Ë¤ª¤¤¤Æ control_word ¤ò fpu (floating point unit) ¤Î¥ì¥¸¥¹¥¿¤ËžÁ÷¤¹¤ë¡£ ¤³¤ì¤ÏÉâÆ°¾®¿ôÅÀ±é»»¤ÎÀºÅÙ¡¢´Ý¤áÊý¡¢ ¤ª¤è¤ÓÉâÆ°¾®¿ôÅÀÎã³°¤òÀ©¸æ¤¹¤ë¤Î¤Ë»È¤ï¤ì¤ë¡£

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FPU ¤Î¥³¥ó¥È¥í¡¼¥ë¥ï¡¼¥É¤Ø¤É¤¦¤·¤Æ¤âľÀÜ¥¢¥¯¥»¥¹¤¹¤ëɬÍפ¬¤¢¤ë¾ì¹ç¤Ë¤Ï¡¢ /usr/include/fpu_control.h ¤Î _FPU_GETCW ¥Þ¥¯¥í¤È _FPU_SETCW ¥Þ¥¯¥í¤òÍѤ¤¤ë¤³¤È¤Ï²Äǽ¤Ç¤¢¤ë¡£

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__setfpucw(0x1372)

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feclearexcept(3)
/usr/include/i386/fpu_control.h