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- Path: sparky!uunet!dtix!darwin.sura.net!jvnc.net!news.edu.tw!news!debbie!daniel!linsbin
- From: linsbin@cc.nctu.edu.tw (Lin shyh bin)
- Newsgroups: comp.lang.c
- Subject: Q : Using 128 bits on VAX C ?
- Message-ID: <1992Jul30.021134.27861@debbie.cc.nctu.edu.tw>
- Date: 30 Jul 92 02:11:34 GMT
- Sender: usenet@debbie.cc.nctu.edu.tw (News Sender)
- Organization: National Chiao Tung University
- Lines: 27
- X-Newsreader: Tin 1.1 PL4
-
- Hi, netters :
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- I only know it's available to use a 128 bits floating point number on VAX
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- FORTRAN (guad precision: REAL*16). And the VAX FORTRAN also support the math
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- library functions with a guad precision floating point number, just as
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- REAL*16 QSIN(REAL*16), REAL*16 QSIN(REAL*16), ...... etc. But I can't use the
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- 128 bits floating point number on VAX C, it just allow to use the double
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- precision type (64 bits). And it also only support the double precision type
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- of the math library functions.
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- Could anyone tell me how to use guad precision type on VAX C ? Or does it
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- have another solution method to get 128 bits precision on VAX C ? By the way,
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- the "using /G_FLOAT on compiling" seems useful. How does it work ?
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- Thanks in advance !!!
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- Sbin Lin
- Internet : u7822044@cc.nctu.edu.tw
- Bitnet : 7822044@TWNCTU02
-