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Using d1mach.f, i1mach.f copied from scipy/scipy/special/mach/. 

The complex Bessel functions are finally working.


Former-commit-id: 6a1b896fc2cef938cb88bf8dbc6170f501ccf119
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Marek Nečada 2019-03-20 20:52:10 +02:00
parent 6ee4518bb1
commit eafd1609a5
2 changed files with 472 additions and 1072 deletions
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*DECK D1MACH
DOUBLE PRECISION FUNCTION D1MACH(I)
C***BEGIN PROLOGUE D1MACH
C***DATE WRITTEN 750101 (YYMMDD)
C***REVISION DATE 890213 (YYMMDD)
C***CATEGORY NO. R1
C***KEYWORDS LIBRARY=SLATEC,TYPE=DOUBLE PRECISION(R1MACH-S D1MACH-D),
C MACHINE CONSTANTS
C***AUTHOR FOX, P. A., (BELL LABS)
C HALL, A. D., (BELL LABS)
C SCHRYER, N. L., (BELL LABS)
C***PURPOSE Returns double precision machine dependent constants
C***DESCRIPTION
INTEGER I
C
C D1MACH can be used to obtain machine-dependent parameters
C for the local machine environment. It is a function
C subprogram with one (input) argument, and can be called
C as follows, for example
C
C D = D1MACH(I)
C
C where I=1,...,5. The (output) value of D above is
C determined by the (input) value of I. The results for
C various values of I are discussed below.
C
C D1MACH( 1) = B**(EMIN-1), the smallest positive magnitude.
C D1MACH( 2) = B**EMAX*(1 - B**(-T)), the largest magnitude.
C D1MACH( 3) = B**(-T), the smallest relative spacing.
C D1MACH( 4) = B**(1-T), the largest relative spacing.
C DOUBLE-PRECISION MACHINE CONSTANTS
C D1MACH( 1) = B**(EMIN-1), THE SMALLEST POSITIVE MAGNITUDE.
C D1MACH( 2) = B**EMAX*(1 - B**(-T)), THE LARGEST MAGNITUDE.
C D1MACH( 3) = B**(-T), THE SMALLEST RELATIVE SPACING.
C D1MACH( 4) = B**(1-T), THE LARGEST RELATIVE SPACING.
C D1MACH( 5) = LOG10(B)
C
C Assume double precision numbers are represented in the T-digit,
C base-B form
C
C sign (B**E)*( (X(1)/B) + ... + (X(T)/B**T) )
C
C where 0 .LE. X(I) .LT. B for I=1,...,T, 0 .LT. X(1), and
C EMIN .LE. E .LE. EMAX.
C
C The values of B, T, EMIN and EMAX are provided in I1MACH as
C follows:
C I1MACH(10) = B, the base.
C I1MACH(14) = T, the number of base-B digits.
C I1MACH(15) = EMIN, the smallest exponent E.
C I1MACH(16) = EMAX, the largest exponent E.
C
C To alter this function for a particular environment,
C the desired set of DATA statements should be activated by
C removing the C from column 1. Also, the values of
C D1MACH(1) - D1MACH(4) should be checked for consistency
C with the local operating system.
C
C***REFERENCES FOX P.A., HALL A.D., SCHRYER N.L.,*FRAMEWORK FOR A
C PORTABLE LIBRARY*, ACM TRANSACTIONS ON MATHEMATICAL
C SOFTWARE, VOL. 4, NO. 2, JUNE 1978, PP. 177-188.
C***ROUTINES CALLED XERROR
C***END PROLOGUE D1MACH
C
INTEGER SMALL(4)
INTEGER LARGE(4)
INTEGER RIGHT(4)
INTEGER DIVER(4)
INTEGER LOG10(4)
C
INTEGER SMALL(2)
INTEGER LARGE(2)
INTEGER RIGHT(2)
INTEGER DIVER(2)
INTEGER LOG10(2)
INTEGER SC, CRAY1(38), J
COMMON /D9MACH/ CRAY1
SAVE SMALL, LARGE, RIGHT, DIVER, LOG10, SC
DOUBLE PRECISION DMACH(5)
SAVE DMACH
C
EQUIVALENCE (DMACH(1),SMALL(1))
EQUIVALENCE (DMACH(2),LARGE(1))
EQUIVALENCE (DMACH(3),RIGHT(1))
EQUIVALENCE (DMACH(4),DIVER(1))
EQUIVALENCE (DMACH(5),LOG10(1))
C THIS VERSION ADAPTS AUTOMATICALLY TO MOST CURRENT MACHINES.
C R1MACH CAN HANDLE AUTO-DOUBLE COMPILING, BUT THIS VERSION OF
C D1MACH DOES NOT, BECAUSE WE DO NOT HAVE QUAD CONSTANTS FOR
C MANY MACHINES YET.
C TO COMPILE ON OLDER MACHINES, ADD A C IN COLUMN 1
C ON THE NEXT LINE
DATA SC/0/
C AND REMOVE THE C FROM COLUMN 1 IN ONE OF THE SECTIONS BELOW.
C CONSTANTS FOR EVEN OLDER MACHINES CAN BE OBTAINED BY
C mail netlib@research.bell-labs.com
C send old1mach from blas
C PLEASE SEND CORRECTIONS TO dmg OR ehg@bell-labs.com.
C
C MACHINE CONSTANTS FOR THE AMIGA
C ABSOFT FORTRAN COMPILER USING THE 68020/68881 COMPILER OPTION
C
C DATA SMALL(1), SMALL(2) / Z'00100000', Z'00000000' /
C DATA LARGE(1), LARGE(2) / Z'7FEFFFFF', Z'FFFFFFFF' /
C DATA RIGHT(1), RIGHT(2) / Z'3CA00000', Z'00000000' /
C DATA DIVER(1), DIVER(2) / Z'3CB00000', Z'00000000' /
C DATA LOG10(1), LOG10(2) / Z'3FD34413', Z'509F79FF' /
C
C MACHINE CONSTANTS FOR THE AMIGA
C ABSOFT FORTRAN COMPILER USING SOFTWARE FLOATING POINT
C
C DATA SMALL(1), SMALL(2) / Z'00100000', Z'00000000' /
C DATA LARGE(1), LARGE(2) / Z'7FDFFFFF', Z'FFFFFFFF' /
C DATA RIGHT(1), RIGHT(2) / Z'3CA00000', Z'00000000' /
C DATA DIVER(1), DIVER(2) / Z'3CB00000', Z'00000000' /
C DATA LOG10(1), LOG10(2) / Z'3FD34413', Z'509F79FF' /
C
C MACHINE CONSTANTS FOR THE APOLLO
C
C DATA SMALL(1), SMALL(2) / 16#00100000, 16#00000000 /
C DATA LARGE(1), LARGE(2) / 16#7FFFFFFF, 16#FFFFFFFF /
C DATA RIGHT(1), RIGHT(2) / 16#3CA00000, 16#00000000 /
C DATA DIVER(1), DIVER(2) / 16#3CB00000, 16#00000000 /
C DATA LOG10(1), LOG10(2) / 16#3FD34413, 16#509F79FF /
C
C MACHINE CONSTANTS FOR THE BURROUGHS 1700 SYSTEM
C
C DATA SMALL(1) / ZC00800000 /
C DATA SMALL(2) / Z000000000 /
C DATA LARGE(1) / ZDFFFFFFFF /
C DATA LARGE(2) / ZFFFFFFFFF /
C DATA RIGHT(1) / ZCC5800000 /
C DATA RIGHT(2) / Z000000000 /
C DATA DIVER(1) / ZCC6800000 /
C DATA DIVER(2) / Z000000000 /
C DATA LOG10(1) / ZD00E730E7 /
C DATA LOG10(2) / ZC77800DC0 /
C
C MACHINE CONSTANTS FOR THE BURROUGHS 5700 SYSTEM
C
C DATA SMALL(1) / O1771000000000000 /
C DATA SMALL(2) / O0000000000000000 /
C DATA LARGE(1) / O0777777777777777 /
C DATA LARGE(2) / O0007777777777777 /
C DATA RIGHT(1) / O1461000000000000 /
C DATA RIGHT(2) / O0000000000000000 /
C DATA DIVER(1) / O1451000000000000 /
C DATA DIVER(2) / O0000000000000000 /
C DATA LOG10(1) / O1157163034761674 /
C DATA LOG10(2) / O0006677466732724 /
C
C MACHINE CONSTANTS FOR THE BURROUGHS 6700/7700 SYSTEMS
C
C DATA SMALL(1) / O1771000000000000 /
C DATA SMALL(2) / O7770000000000000 /
C DATA LARGE(1) / O0777777777777777 /
C DATA LARGE(2) / O7777777777777777 /
C DATA RIGHT(1) / O1461000000000000 /
C DATA RIGHT(2) / O0000000000000000 /
C DATA DIVER(1) / O1451000000000000 /
C DATA DIVER(2) / O0000000000000000 /
C DATA LOG10(1) / O1157163034761674 /
C DATA LOG10(2) / O0006677466732724 /
C
C MACHINE CONSTANTS FOR THE CDC 170/180 SERIES USING NOS/VE
C
C DATA SMALL(1) / Z"3001800000000000" /
C DATA SMALL(2) / Z"3001000000000000" /
C DATA LARGE(1) / Z"4FFEFFFFFFFFFFFE" /
C DATA LARGE(2) / Z"4FFE000000000000" /
C DATA RIGHT(1) / Z"3FD2800000000000" /
C DATA RIGHT(2) / Z"3FD2000000000000" /
C DATA DIVER(1) / Z"3FD3800000000000" /
C DATA DIVER(2) / Z"3FD3000000000000" /
C DATA LOG10(1) / Z"3FFF9A209A84FBCF" /
C DATA LOG10(2) / Z"3FFFF7988F8959AC" /
C
C MACHINE CONSTANTS FOR THE CDC 6000/7000 SERIES
C
C DATA SMALL(1) / 00564000000000000000B /
C DATA SMALL(2) / 00000000000000000000B /
C DATA LARGE(1) / 37757777777777777777B /
C DATA LARGE(2) / 37157777777777777777B /
C DATA RIGHT(1) / 15624000000000000000B /
C DATA RIGHT(2) / 00000000000000000000B /
C DATA DIVER(1) / 15634000000000000000B /
C DATA DIVER(2) / 00000000000000000000B /
C DATA LOG10(1) / 17164642023241175717B /
C DATA LOG10(2) / 16367571421742254654B /
C
C MACHINE CONSTANTS FOR THE CELERITY C1260
C
C DATA SMALL(1), SMALL(2) / Z'00100000', Z'00000000' /
C DATA LARGE(1), LARGE(2) / Z'7FEFFFFF', Z'FFFFFFFF' /
C DATA RIGHT(1), RIGHT(2) / Z'3CA00000', Z'00000000' /
C DATA DIVER(1), DIVER(2) / Z'3CB00000', Z'00000000' /
C DATA LOG10(1), LOG10(2) / Z'3FD34413', Z'509F79FF' /
C
C MACHINE CONSTANTS FOR THE CONVEX C-1
C
C DATA SMALL(1), SMALL(2) / '00100000'X,'00000000'X /
C DATA LARGE(1), LARGE(2) / '7FFFFFFF'X,'FFFFFFFF'X /
C DATA RIGHT(1), RIGHT(2) / '3CC00000'X,'00000000'X /
C DATA DIVER(1), DIVER(2) / '3CD00000'X,'00000000'X /
C DATA LOG10(1), LOG10(2) / '3FF34413'X,'509F79FF'X /
C
C MACHINE CONSTANTS FOR THE CRAY-1
C
C DATA SMALL(1) / 201354000000000000000B /
C DATA SMALL(2) / 000000000000000000000B /
C DATA LARGE(1) / 577767777777777777777B /
C DATA LARGE(2) / 000007777777777777774B /
C DATA RIGHT(1) / 376434000000000000000B /
C DATA RIGHT(2) / 000000000000000000000B /
C DATA DIVER(1) / 376444000000000000000B /
C DATA DIVER(2) / 000000000000000000000B /
C DATA LOG10(1) / 377774642023241175717B /
C DATA LOG10(2) / 000007571421742254654B /
C
C MACHINE CONSTANTS FOR THE DATA GENERAL ECLIPSE S/200
C
C NOTE - IT MAY BE APPROPRIATE TO INCLUDE THE FOLLOWING CARD -
C STATIC DMACH(5)
C
C DATA SMALL / 20K, 3*0 /
C DATA LARGE / 77777K, 3*177777K /
C DATA RIGHT / 31420K, 3*0 /
C DATA DIVER / 32020K, 3*0 /
C DATA LOG10 / 40423K, 42023K, 50237K, 74776K /
C
C MACHINE CONSTANTS FOR THE ELXSI 6400
C (ASSUMING REAL*8 IS THE DEFAULT DOUBLE PRECISION)
C
C DATA SMALL(1), SMALL(2) / '00100000'X,'00000000'X /
C DATA LARGE(1), LARGE(2) / '7FEFFFFF'X,'FFFFFFFF'X /
C DATA RIGHT(1), RIGHT(2) / '3CB00000'X,'00000000'X /
C DATA DIVER(1), DIVER(2) / '3CC00000'X,'00000000'X /
C DATA LOG10(1), LOG10(2) / '3FD34413'X,'509F79FF'X /
C
C MACHINE CONSTANTS FOR THE HARRIS 220
C
C DATA SMALL(1), SMALL(2) / '20000000, '00000201 /
C DATA LARGE(1), LARGE(2) / '37777777, '37777577 /
C DATA RIGHT(1), RIGHT(2) / '20000000, '00000333 /
C DATA DIVER(1), DIVER(2) / '20000000, '00000334 /
C DATA LOG10(1), LOG10(2) / '23210115, '10237777 /
C
C MACHINE CONSTANTS FOR THE HONEYWELL 600/6000 SERIES
C
C MACHINE CONSTANTS FOR THE HONEYWELL DPS 8/70 SERIES.
C DATA SMALL(1),SMALL(2) / O402400000000, O000000000000 /
C DATA LARGE(1),LARGE(2) / O376777777777, O777777777777 /
C DATA RIGHT(1),RIGHT(2) / O604400000000, O000000000000 /
C DATA DIVER(1),DIVER(2) / O606400000000, O000000000000 /
C DATA LOG10(1), LOG10(2) / O776464202324, O117571775714 /
C
C MACHINE CONSTANTS FOR THE HP 2100
C THREE WORD DOUBLE PRECISION OPTION WITH FTN4
C
C DATA SMALL(1), SMALL(2), SMALL(3) / 40000B, 0, 1 /
C DATA LARGE(1), LARGE(2), LARGE(3) / 77777B, 177777B, 177776B /
C DATA RIGHT(1), RIGHT(2), RIGHT(3) / 40000B, 0, 265B /
C DATA DIVER(1), DIVER(2), DIVER(3) / 40000B, 0, 276B /
C DATA LOG10(1), LOG10(2), LOG10(3) / 46420B, 46502B, 77777B /
C
C MACHINE CONSTANTS FOR THE HP 2100
C FOUR WORD DOUBLE PRECISION OPTION WITH FTN4
C
C DATA SMALL(1), SMALL(2) / 40000B, 0 /
C DATA SMALL(3), SMALL(4) / 0, 1 /
C DATA LARGE(1), LARGE(2) / 77777B, 177777B /
C DATA LARGE(3), LARGE(4) / 177777B, 177776B /
C DATA RIGHT(1), RIGHT(2) / 40000B, 0 /
C DATA RIGHT(3), RIGHT(4) / 0, 225B /
C DATA DIVER(1), DIVER(2) / 40000B, 0 /
C DATA DIVER(3), DIVER(4) / 0, 227B /
C DATA LOG10(1), LOG10(2) / 46420B, 46502B /
C DATA LOG10(3), LOG10(4) / 76747B, 176377B /
C
C MACHINE CONSTANTS FOR THE HP 9000
C
C DATA SMALL(1), SMALL(2) / 00040000000B, 00000000000B /
C DATA LARGE(1), LARGE(2) / 17737777777B, 37777777777B /
C DATA RIGHT(1), RIGHT(2) / 07454000000B, 00000000000B /
C DATA DIVER(1), DIVER(2) / 07460000000B, 00000000000B /
C DATA LOG10(1), LOG10(2) / 07764642023B, 12047674777B /
C
C MACHINE CONSTANTS FOR THE IBM 360/370 SERIES,
C THE XEROX SIGMA 5/7/9, THE SEL SYSTEMS 85/86, AND
C THE PERKIN ELMER (INTERDATA) 7/32.
C
C DATA SMALL(1), SMALL(2) / Z00100000, Z00000000 /
C DATA LARGE(1), LARGE(2) / Z7FFFFFFF, ZFFFFFFFF /
C DATA RIGHT(1), RIGHT(2) / Z33100000, Z00000000 /
C DATA DIVER(1), DIVER(2) / Z34100000, Z00000000 /
C DATA LOG10(1), LOG10(2) / Z41134413, Z509F79FF /
C
C MACHINE CONSTANTS FOR THE IBM PC
C ASSUMES THAT ALL ARITHMETIC IS DONE IN DOUBLE PRECISION
C ON 8088, I.E., NOT IN 80 BIT FORM FOR THE 8087.
C
C DATA SMALL(1),SMALL(2) / 2002288515, 1050897 /
C DATA LARGE(1),LARGE(2) / 1487780761, 2146426097 /
C DATA RIGHT(1),RIGHT(2) / -1209488034, 1017118298 /
C DATA DIVER(1),DIVER(2) / -1209488034, 1018166874 /
C DATA LOG10(1),LOG10(2) / 1352628735, 1070810131 /
C
C MACHINE CONSTANTS FOR THE IBM RS 6000
C
C DATA SMALL(1), SMALL(2) / Z'00100000', Z'00000000' /
C DATA LARGE(1), LARGE(2) / Z'7FEFFFFF', Z'FFFFFFFF' /
C DATA RIGHT(1), RIGHT(2) / Z'3CA00000', Z'00000000' /
C DATA DIVER(1), DIVER(2) / Z'3CB00000', Z'00000000' /
C DATA LOG10(1), LOG10(2) / Z'3FD34413', Z'509F79FF' /
C
C MACHINE CONSTANTS FOR THE PDP-10 (KA PROCESSOR)
C
C DATA SMALL(1), SMALL(2) / "033400000000, "000000000000 /
C DATA LARGE(1), LARGE(2) / "377777777777, "344777777777 /
C DATA RIGHT(1), RIGHT(2) / "113400000000, "000000000000 /
C DATA DIVER(1), DIVER(2) / "114400000000, "000000000000 /
C DATA LOG10(1), LOG10(2) / "177464202324, "144117571776 /
C
C MACHINE CONSTANTS FOR THE PDP-10 (KI PROCESSOR)
C
C DATA SMALL(1), SMALL(2) / "000400000000, "000000000000 /
C DATA LARGE(1), LARGE(2) / "377777777777, "377777777777 /
C DATA RIGHT(1), RIGHT(2) / "103400000000, "000000000000 /
C DATA DIVER(1), DIVER(2) / "104400000000, "000000000000 /
C DATA LOG10(1), LOG10(2) / "177464202324, "476747767461 /
C
C MACHINE CONSTANTS FOR PDP-11 FORTRAN SUPPORTING
C 32-BIT INTEGERS (EXPRESSED IN INTEGER AND OCTAL).
C DATA LOG10(1),LOG10(2) / O776464202324, O117571775714 /, SC/987/
C
C MACHINE CONSTANTS FOR PDP-11 FORTRANS SUPPORTING
C 32-BIT INTEGERS.
C DATA SMALL(1),SMALL(2) / 8388608, 0 /
C DATA LARGE(1),LARGE(2) / 2147483647, -1 /
C DATA RIGHT(1),RIGHT(2) / 612368384, 0 /
C DATA DIVER(1),DIVER(2) / 620756992, 0 /
C DATA LOG10(1), LOG10(2) / 1067065498, -2063872008 /
C
C DATA SMALL(1), SMALL(2) / O00040000000, O00000000000 /
C DATA LARGE(1), LARGE(2) / O17777777777, O37777777777 /
C DATA RIGHT(1), RIGHT(2) / O04440000000, O00000000000 /
C DATA DIVER(1), DIVER(2) / O04500000000, O00000000000 /
C DATA LOG10(1), LOG10(2) / O07746420232, O20476747770 /
C
C MACHINE CONSTANTS FOR PDP-11 FORTRAN SUPPORTING
C 16-BIT INTEGERS (EXPRESSED IN INTEGER AND OCTAL).
C
C DATA SMALL(1), SMALL(2) / 128, 0 /
C DATA SMALL(3), SMALL(4) / 0, 0 /
C DATA LARGE(1), LARGE(2) / 32767, -1 /
C DATA LARGE(3), LARGE(4) / -1, -1 /
C DATA RIGHT(1), RIGHT(2) / 9344, 0 /
C DATA RIGHT(3), RIGHT(4) / 0, 0 /
C DATA DIVER(1), DIVER(2) / 9472, 0 /
C DATA DIVER(3), DIVER(4) / 0, 0 /
C DATA LOG10(1), LOG10(2) / 16282, 8346 /
C DATA LOG10(3), LOG10(4) / -31493, -12296 /
C
C DATA SMALL(1), SMALL(2) / O000200, O000000 /
C DATA SMALL(3), SMALL(4) / O000000, O000000 /
C DATA LARGE(1), LARGE(2) / O077777, O177777 /
C DATA LARGE(3), LARGE(4) / O177777, O177777 /
C DATA RIGHT(1), RIGHT(2) / O022200, O000000 /
C DATA RIGHT(3), RIGHT(4) / O000000, O000000 /
C DATA DIVER(1), DIVER(2) / O022400, O000000 /
C DATA DIVER(3), DIVER(4) / O000000, O000000 /
C DATA LOG10(1), LOG10(2) / O037632, O020232 /
C DATA LOG10(3), LOG10(4) / O102373, O147770 /
C
C MACHINE CONSTANTS FOR THE SILICON GRAPHICS IRIS
C
c data dmach(1) / 2.22507 38585 072012 d-308 /
c data dmach(2) / 1.79769 31348 623158 d+308 /
c data dmach(3) / 2.22044 60492 503131 d-16 /
c data dmach(4) / 4.44089 20985 006262 d-16 /
c data dmach(5) / 0.30102 99956 639812 /
C
C DATA SMALL(1), SMALL(2) / Z'00100000',Z'00000000' /
C DATA LARGE(1), LARGE(2) / Z'7FEFFFFF',Z'FFFFFFFF' /
C DATA RIGHT(1), RIGHT(2) / Z'3CB00000',Z'00000000' /
C DATA DIVER(1), DIVER(2) / Z'3CC00000',Z'00000000' /
C DATA LOG10(1), LOG10(2) / Z'3FD34413',Z'509F79FF' /
C
C MACHINE CONSTANTS FOR THE SUN
C
C from SLATEC CML committee - work for Sun3, Sun4, and Sparc
C
C DATA SMALL(1), SMALL(2) / Z'00100000', Z'00000000' /
C DATA LARGE(1), LARGE(2) / Z'7FEFFFFF', Z'FFFFFFFF' /
C DATA RIGHT(1), RIGHT(2) / Z'3CA00000', Z'00000000' /
C DATA DIVER(1), DIVER(2) / Z'3CB00000', Z'00000000' /
C DATA LOG10(1), LOG10(2) / Z'3FD34413', Z'509F79FF' /
C
C from Sun Microsystems - work for Sun 386i
C
C DATA SMALL(1), SMALL(2) / Z'00000000', Z'00100000' /
C DATA LARGE(1), LARGE(2) / Z'FFFFFFFF', Z'7FEFFFFF' /
C DATA RIGHT(1), RIGHT(2) / Z'00000000', Z'3CA00000' /
C DATA DIVER(1), DIVER(2) / Z'00000000', Z'3CB00000' /
C DATA LOG10(1), LOG10(2) / Z'509F79FF', Z'3FD34413' /
C
C MACHINE CONSTANTS FOR THE UNIVAC 1100 SERIES FTN COMPILER
C DATA LOG10(1),LOG10(2) / 1067065498, -2063872008 /, SC/987/
C
C MACHINE CONSTANTS FOR THE UNIVAC 1100 SERIES.
C DATA SMALL(1),SMALL(2) / O000040000000, O000000000000 /
C DATA LARGE(1),LARGE(2) / O377777777777, O777777777777 /
C DATA RIGHT(1),RIGHT(2) / O170540000000, O000000000000 /
C DATA DIVER(1),DIVER(2) / O170640000000, O000000000000 /
C DATA LOG10(1), LOG10(2) / O177746420232, O411757177572 /
C
C MACHINE CONSTANTS FOR VAX 11/780
C (EXPRESSED IN INTEGER AND HEXADECIMAL)
C THE HEX FORMAT BELOW MAY NOT BE SUITABLE FOR UNIX SYSYEMS
C THE INTEGER FORMAT SHOULD BE OK FOR UNIX SYSTEMS
C
C DATA SMALL(1), SMALL(2) / 128, 0 /
C DATA LARGE(1), LARGE(2) / -32769, -1 /
C DATA RIGHT(1), RIGHT(2) / 9344, 0 /
C DATA DIVER(1), DIVER(2) / 9472, 0 /
C DATA LOG10(1), LOG10(2) / 546979738, -805796613 /
C
C DATA SMALL(1), SMALL(2) / Z00000080, Z00000000 /
C DATA LARGE(1), LARGE(2) / ZFFFF7FFF, ZFFFFFFFF /
C DATA RIGHT(1), RIGHT(2) / Z00002480, Z00000000 /
C DATA DIVER(1), DIVER(2) / Z00002500, Z00000000 /
C DATA LOG10(1), LOG10(2) / Z209A3F9A, ZCFF884FB /
C
C MACHINE CONSTANTS FOR VAX 11/780 (G-FLOATING)
C (EXPRESSED IN INTEGER AND HEXADECIMAL)
C THE HEX FORMAT BELOW MAY NOT BE SUITABLE FOR UNIX SYSYEMS
C THE INTEGER FORMAT SHOULD BE OK FOR UNIX SYSTEMS
C
C DATA SMALL(1), SMALL(2) / 16, 0 /
C DATA LARGE(1), LARGE(2) / -32769, -1 /
C DATA RIGHT(1), RIGHT(2) / 15552, 0 /
C DATA DIVER(1), DIVER(2) / 15568, 0 /
C DATA LOG10(1), LOG10(2) / 1142112243, 2046775455 /
C
C DATA SMALL(1), SMALL(2) / Z00000010, Z00000000 /
C DATA LARGE(1), LARGE(2) / ZFFFF7FFF, ZFFFFFFFF /
C DATA RIGHT(1), RIGHT(2) / Z00003CC0, Z00000000 /
C DATA DIVER(1), DIVER(2) / Z00003CD0, Z00000000 /
C DATA LOG10(1), LOG10(2) / Z44133FF3, Z79FF509F /
C
C
C***FIRST EXECUTABLE STATEMENT D1MACH
IF (I .LT. 1 .OR. I .GT. 5)
1 CALL XERROR ('D1MACH -- I OUT OF BOUNDS', 25, 1, 2)
C DATA LOG10(1),LOG10(2) / O177746420232, O411757177572 /, SC/987/
C
C ON FIRST CALL, IF NO DATA UNCOMMENTED, TEST MACHINE TYPES.
IF (SC .NE. 987) THEN
DMACH(1) = 1.D13
IF ( SMALL(1) .EQ. 1117925532
* .AND. SMALL(2) .EQ. -448790528) THEN
* *** IEEE BIG ENDIAN ***
SMALL(1) = 1048576
SMALL(2) = 0
LARGE(1) = 2146435071
LARGE(2) = -1
RIGHT(1) = 1017118720
RIGHT(2) = 0
DIVER(1) = 1018167296
DIVER(2) = 0
LOG10(1) = 1070810131
LOG10(2) = 1352628735
ELSE IF ( SMALL(2) .EQ. 1117925532
* .AND. SMALL(1) .EQ. -448790528) THEN
* *** IEEE LITTLE ENDIAN ***
SMALL(2) = 1048576
SMALL(1) = 0
LARGE(2) = 2146435071
LARGE(1) = -1
RIGHT(2) = 1017118720
RIGHT(1) = 0
DIVER(2) = 1018167296
DIVER(1) = 0
LOG10(2) = 1070810131
LOG10(1) = 1352628735
ELSE IF ( SMALL(1) .EQ. -2065213935
* .AND. SMALL(2) .EQ. 10752) THEN
* *** VAX WITH D_FLOATING ***
SMALL(1) = 128
SMALL(2) = 0
LARGE(1) = -32769
LARGE(2) = -1
RIGHT(1) = 9344
RIGHT(2) = 0
DIVER(1) = 9472
DIVER(2) = 0
LOG10(1) = 546979738
LOG10(2) = -805796613
ELSE IF ( SMALL(1) .EQ. 1267827943
* .AND. SMALL(2) .EQ. 704643072) THEN
* *** IBM MAINFRAME ***
SMALL(1) = 1048576
SMALL(2) = 0
LARGE(1) = 2147483647
LARGE(2) = -1
RIGHT(1) = 856686592
RIGHT(2) = 0
DIVER(1) = 873463808
DIVER(2) = 0
LOG10(1) = 1091781651
LOG10(2) = 1352628735
ELSE IF ( SMALL(1) .EQ. 1120022684
* .AND. SMALL(2) .EQ. -448790528) THEN
* *** CONVEX C-1 ***
SMALL(1) = 1048576
SMALL(2) = 0
LARGE(1) = 2147483647
LARGE(2) = -1
RIGHT(1) = 1019215872
RIGHT(2) = 0
DIVER(1) = 1020264448
DIVER(2) = 0
LOG10(1) = 1072907283
LOG10(2) = 1352628735
ELSE IF ( SMALL(1) .EQ. 815547074
* .AND. SMALL(2) .EQ. 58688) THEN
* *** VAX G-FLOATING ***
SMALL(1) = 16
SMALL(2) = 0
LARGE(1) = -32769
LARGE(2) = -1
RIGHT(1) = 15552
RIGHT(2) = 0
DIVER(1) = 15568
DIVER(2) = 0
LOG10(1) = 1142112243
LOG10(2) = 2046775455
ELSE
DMACH(2) = 1.D27 + 1
DMACH(3) = 1.D27
LARGE(2) = LARGE(2) - RIGHT(2)
IF (LARGE(2) .EQ. 64 .AND. SMALL(2) .EQ. 0) THEN
CRAY1(1) = 67291416
DO 10 J = 1, 20
CRAY1(J+1) = CRAY1(J) + CRAY1(J)
10 CONTINUE
CRAY1(22) = CRAY1(21) + 321322
DO 20 J = 22, 37
CRAY1(J+1) = CRAY1(J) + CRAY1(J)
20 CONTINUE
IF (CRAY1(38) .EQ. SMALL(1)) THEN
* *** CRAY ***
CALL I1MCRY(SMALL(1), J, 8285, 8388608, 0)
SMALL(2) = 0
CALL I1MCRY(LARGE(1), J, 24574, 16777215, 16777215)
CALL I1MCRY(LARGE(2), J, 0, 16777215, 16777214)
CALL I1MCRY(RIGHT(1), J, 16291, 8388608, 0)
RIGHT(2) = 0
CALL I1MCRY(DIVER(1), J, 16292, 8388608, 0)
DIVER(2) = 0
CALL I1MCRY(LOG10(1), J, 16383, 10100890, 8715215)
CALL I1MCRY(LOG10(2), J, 0, 16226447, 9001388)
ELSE
WRITE(*,9000)
STOP 779
END IF
ELSE
WRITE(*,9000)
STOP 779
END IF
END IF
SC = 987
END IF
* SANITY CHECK
IF (DMACH(4) .GE. 1.0D0) STOP 778
IF (I .LT. 1 .OR. I .GT. 5) THEN
WRITE(*,*) 'D1MACH(I): I =',I,' is out of bounds.'
STOP
END IF
D1MACH = DMACH(I)
RETURN
C
9000 FORMAT(/' Adjust D1MACH by uncommenting data statements'/
*' appropriate for your machine.')
* /* Standard C source for D1MACH -- remove the * in column 1 */
*#include <stdio.h>
*#include <float.h>
*#include <math.h>
*double d1mach_(long *i)
*{
* switch(*i){
* case 1: return DBL_MIN;
* case 2: return DBL_MAX;
* case 3: return DBL_EPSILON/FLT_RADIX;
* case 4: return DBL_EPSILON;
* case 5: return log10(FLT_RADIX);
* }
* fprintf(stderr, "invalid argument: d1mach(%ld)\n", *i);
* exit(1); return 0; /* some compilers demand return values */
*}
END
SUBROUTINE I1MCRY(A, A1, B, C, D)
**** SPECIAL COMPUTATION FOR OLD CRAY MACHINES ****
INTEGER A, A1, B, C, D
A1 = 16777216*B + C
A = 16777216*A1 + D
END

852
amos/i1mach.f
View File

@ -1,338 +1,55 @@
*DECK I1MACH
INTEGER FUNCTION I1MACH(I)
C***BEGIN PROLOGUE I1MACH
C***DATE WRITTEN 750101 (YYMMDD)
C***REVISION DATE 890213 (YYMMDD)
C***CATEGORY NO. R1
C***KEYWORDS LIBRARY=SLATEC,TYPE=INTEGER(I1MACH-I),MACHINE CONSTANTS
C***AUTHOR FOX, P. A., (BELL LABS)
C HALL, A. D., (BELL LABS)
C SCHRYER, N. L., (BELL LABS)
C***PURPOSE Returns integer machine dependent constants
C***DESCRIPTION
INTEGER I
C
C I1MACH can be used to obtain machine-dependent parameters
C for the local machine environment. It is a function
C subroutine with one (input) argument, and can be called
C as follows, for example
C I1MACH( 1) = THE STANDARD INPUT UNIT.
C I1MACH( 2) = THE STANDARD OUTPUT UNIT.
C I1MACH( 3) = THE STANDARD PUNCH UNIT.
C I1MACH( 4) = THE STANDARD ERROR MESSAGE UNIT.
C I1MACH( 5) = THE NUMBER OF BITS PER INTEGER STORAGE UNIT.
C I1MACH( 6) = THE NUMBER OF CHARACTERS PER CHARACTER STORAGE UNIT.
C INTEGERS HAVE FORM SIGN ( X(S-1)*A**(S-1) + ... + X(1)*A + X(0) )
C I1MACH( 7) = A, THE BASE.
C I1MACH( 8) = S, THE NUMBER OF BASE-A DIGITS.
C I1MACH( 9) = A**S - 1, THE LARGEST MAGNITUDE.
C FLOATS HAVE FORM SIGN (B**E)*( (X(1)/B) + ... + (X(T)/B**T) )
C WHERE EMIN .LE. E .LE. EMAX.
C I1MACH(10) = B, THE BASE.
C SINGLE-PRECISION
C I1MACH(11) = T, THE NUMBER OF BASE-B DIGITS.
C I1MACH(12) = EMIN, THE SMALLEST EXPONENT E.
C I1MACH(13) = EMAX, THE LARGEST EXPONENT E.
C DOUBLE-PRECISION
C I1MACH(14) = T, THE NUMBER OF BASE-B DIGITS.
C I1MACH(15) = EMIN, THE SMALLEST EXPONENT E.
C I1MACH(16) = EMAX, THE LARGEST EXPONENT E.
C
C K = I1MACH(I)
INTEGER IMACH(16), OUTPUT, SC, SMALL(2)
SAVE IMACH, SC
REAL RMACH
EQUIVALENCE (IMACH(4),OUTPUT), (RMACH,SMALL(1))
INTEGER I3, J, K, T3E(3)
DATA T3E(1) / 9777664 /
DATA T3E(2) / 5323660 /
DATA T3E(3) / 46980 /
C THIS VERSION ADAPTS AUTOMATICALLY TO MOST CURRENT MACHINES,
C INCLUDING AUTO-DOUBLE COMPILERS.
C TO COMPILE ON OLDER MACHINES, ADD A C IN COLUMN 1
C ON THE NEXT LINE
DATA SC/0/
C AND REMOVE THE C FROM COLUMN 1 IN ONE OF THE SECTIONS BELOW.
C CONSTANTS FOR EVEN OLDER MACHINES CAN BE OBTAINED BY
C mail netlib@research.bell-labs.com
C send old1mach from blas
C PLEASE SEND CORRECTIONS TO dmg OR ehg@bell-labs.com.
C
C where I=1,...,16. The (output) value of K above is
C determined by the (input) value of I. The results for
C various values of I are discussed below.
C
C I/O unit numbers.
C I1MACH( 1) = the standard input unit.
C I1MACH( 2) = the standard output unit.
C I1MACH( 3) = the standard punch unit.
C I1MACH( 4) = the standard error message unit.
C
C Words.
C I1MACH( 5) = the number of bits per integer storage unit.
C I1MACH( 6) = the number of characters per integer storage unit.
C
C Integers.
C assume integers are represented in the S-digit, base-A form
C
C sign ( X(S-1)*A**(S-1) + ... + X(1)*A + X(0) )
C
C where 0 .LE. X(I) .LT. A for I=0,...,S-1.
C I1MACH( 7) = A, the base.
C I1MACH( 8) = S, the number of base-A digits.
C I1MACH( 9) = A**S - 1, the largest magnitude.
C
C Floating-Point Numbers.
C Assume floating-point numbers are represented in the T-digit,
C base-B form
C sign (B**E)*( (X(1)/B) + ... + (X(T)/B**T) )
C
C where 0 .LE. X(I) .LT. B for I=1,...,T,
C 0 .LT. X(1), and EMIN .LE. E .LE. EMAX.
C I1MACH(10) = B, the base.
C
C Single-Precision
C I1MACH(11) = T, the number of base-B digits.
C I1MACH(12) = EMIN, the smallest exponent E.
C I1MACH(13) = EMAX, the largest exponent E.
C
C Double-Precision
C I1MACH(14) = T, the number of base-B digits.
C I1MACH(15) = EMIN, the smallest exponent E.
C I1MACH(16) = EMAX, the largest exponent E.
C
C To alter this function for a particular environment,
C the desired set of DATA statements should be activated by
C removing the C from column 1. Also, the values of
C I1MACH(1) - I1MACH(4) should be checked for consistency
C with the local operating system.
C
C***REFERENCES FOX P.A., HALL A.D., SCHRYER N.L.,*FRAMEWORK FOR A
C PORTABLE LIBRARY*, ACM TRANSACTIONS ON MATHEMATICAL
C SOFTWARE, VOL. 4, NO. 2, JUNE 1978, PP. 177-188.
C***ROUTINES CALLED (NONE)
C***END PROLOGUE I1MACH
C
INTEGER IMACH(16),OUTPUT
SAVE IMACH
EQUIVALENCE (IMACH(4),OUTPUT)
C
C MACHINE CONSTANTS FOR THE AMIGA
C ABSOFT COMPILER
C
C DATA IMACH(1) / 5 /
C DATA IMACH(2) / 6 /
C DATA IMACH(3) / 5 /
C DATA IMACH(4) / 6 /
C DATA IMACH(5) / 32 /
C DATA IMACH(6) / 4 /
C DATA IMACH(7) / 2 /
C DATA IMACH(8) / 31 /
C DATA IMACH(9) / 2147483647 /
C DATA IMACH(10)/ 2 /
C DATA IMACH(11)/ 24 /
C DATA IMACH(12)/ -126 /
C DATA IMACH(13)/ 127 /
C DATA IMACH(14)/ 53 /
C DATA IMACH(15)/ -1022 /
C DATA IMACH(16)/ 1023 /
C
C MACHINE CONSTANTS FOR THE APOLLO
C
C DATA IMACH(1) / 5 /
C DATA IMACH(2) / 6 /
C DATA IMACH(3) / 6 /
C DATA IMACH(4) / 6 /
C DATA IMACH(5) / 32 /
C DATA IMACH(6) / 4 /
C DATA IMACH(7) / 2 /
C DATA IMACH(8) / 31 /
C DATA IMACH(9) / 2147483647 /
C DATA IMACH(10)/ 2 /
C DATA IMACH(11)/ 24 /
C DATA IMACH(12)/ -125 /
C DATA IMACH(13)/ 129 /
C DATA IMACH(14)/ 53 /
C DATA IMACH(15)/ -1021 /
C DATA IMACH(16)/ 1025 /
C
C MACHINE CONSTANTS FOR THE BURROUGHS 1700 SYSTEM
C
C DATA IMACH( 1) / 7 /
C DATA IMACH( 2) / 2 /
C DATA IMACH( 3) / 2 /
C DATA IMACH( 4) / 2 /
C DATA IMACH( 5) / 36 /
C DATA IMACH( 6) / 4 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 33 /
C DATA IMACH( 9) / Z1FFFFFFFF /
C DATA IMACH(10) / 2 /
C DATA IMACH(11) / 24 /
C DATA IMACH(12) / -256 /
C DATA IMACH(13) / 255 /
C DATA IMACH(14) / 60 /
C DATA IMACH(15) / -256 /
C DATA IMACH(16) / 255 /
C
C MACHINE CONSTANTS FOR THE BURROUGHS 5700 SYSTEM
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 7 /
C DATA IMACH( 4) / 6 /
C DATA IMACH( 5) / 48 /
C DATA IMACH( 6) / 6 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 39 /
C DATA IMACH( 9) / O0007777777777777 /
C DATA IMACH(10) / 8 /
C DATA IMACH(11) / 13 /
C DATA IMACH(12) / -50 /
C DATA IMACH(13) / 76 /
C DATA IMACH(14) / 26 /
C DATA IMACH(15) / -50 /
C DATA IMACH(16) / 76 /
C
C MACHINE CONSTANTS FOR THE BURROUGHS 6700/7700 SYSTEMS
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 7 /
C DATA IMACH( 4) / 6 /
C DATA IMACH( 5) / 48 /
C DATA IMACH( 6) / 6 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 39 /
C DATA IMACH( 9) / O0007777777777777 /
C DATA IMACH(10) / 8 /
C DATA IMACH(11) / 13 /
C DATA IMACH(12) / -50 /
C DATA IMACH(13) / 76 /
C DATA IMACH(14) / 26 /
C DATA IMACH(15) / -32754 /
C DATA IMACH(16) / 32780 /
C
C MACHINE CONSTANTS FOR THE CDC 170/180 SERIES USING NOS/VE
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 7 /
C DATA IMACH( 4) / 6 /
C DATA IMACH( 5) / 64 /
C DATA IMACH( 6) / 8 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 63 /
C DATA IMACH( 9) / 9223372036854775807 /
C DATA IMACH(10) / 2 /
C DATA IMACH(11) / 47 /
C DATA IMACH(12) / -4095 /
C DATA IMACH(13) / 4094 /
C DATA IMACH(14) / 94 /
C DATA IMACH(15) / -4095 /
C DATA IMACH(16) / 4094 /
C
C MACHINE CONSTANTS FOR THE CDC 6000/7000 SERIES
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 7 /
C DATA IMACH( 4) /6LOUTPUT/
C DATA IMACH( 5) / 60 /
C DATA IMACH( 6) / 10 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 48 /
C DATA IMACH( 9) / 00007777777777777777B /
C DATA IMACH(10) / 2 /
C DATA IMACH(11) / 47 /
C DATA IMACH(12) / -929 /
C DATA IMACH(13) / 1070 /
C DATA IMACH(14) / 94 /
C DATA IMACH(15) / -929 /
C DATA IMACH(16) / 1069 /
C
C MACHINE CONSTANTS FOR THE CELERITY C1260
C
C DATA IMACH(1) / 5 /
C DATA IMACH(2) / 6 /
C DATA IMACH(3) / 6 /
C DATA IMACH(4) / 0 /
C DATA IMACH(5) / 32 /
C DATA IMACH(6) / 4 /
C DATA IMACH(7) / 2 /
C DATA IMACH(8) / 31 /
C DATA IMACH(9) / Z'7FFFFFFF' /
C DATA IMACH(10)/ 2 /
C DATA IMACH(11)/ 24 /
C DATA IMACH(12)/ -126 /
C DATA IMACH(13)/ 127 /
C DATA IMACH(14)/ 53 /
C DATA IMACH(15)/ -1022 /
C DATA IMACH(16)/ 1023 /
C
C MACHINE CONSTANTS FOR THE CONVEX C-1
C
C DATA IMACH( 1) / 5/
C DATA IMACH( 2) / 6/
C DATA IMACH( 3) / 7/
C DATA IMACH( 4) / 6/
C DATA IMACH( 5) / 32/
C DATA IMACH( 6) / 4/
C DATA IMACH( 7) / 2/
C DATA IMACH( 8) / 31/
C DATA IMACH( 9) /2147483647/
C DATA IMACH(10) / 2/
C DATA IMACH(11) / 24/
C DATA IMACH(12) / -128/
C DATA IMACH(13) / 127/
C DATA IMACH(14) / 53/
C DATA IMACH(15) / -1024/
C DATA IMACH(16) / 1023/
C
C MACHINE CONSTANTS FOR THE CRAY-1
C
C DATA IMACH( 1) / 100 /
C DATA IMACH( 2) / 101 /
C DATA IMACH( 3) / 102 /
C DATA IMACH( 4) / 101 /
C DATA IMACH( 5) / 64 /
C DATA IMACH( 6) / 8 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 63 /
C DATA IMACH( 9) / 777777777777777777777B /
C DATA IMACH(10) / 2 /
C DATA IMACH(11) / 47 /
C DATA IMACH(12) / -8189 /
C DATA IMACH(13) / 8190 /
C DATA IMACH(14) / 94 /
C DATA IMACH(15) / -8099 /
C DATA IMACH(16) / 8190 /
C
C MACHINE CONSTANTS FOR THE DATA GENERAL ECLIPSE S/200
C
C DATA IMACH( 1) / 11 /
C DATA IMACH( 2) / 12 /
C DATA IMACH( 3) / 8 /
C DATA IMACH( 4) / 10 /
C DATA IMACH( 5) / 16 /
C DATA IMACH( 6) / 2 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 15 /
C DATA IMACH( 9) /32767 /
C DATA IMACH(10) / 16 /
C DATA IMACH(11) / 6 /
C DATA IMACH(12) / -64 /
C DATA IMACH(13) / 63 /
C DATA IMACH(14) / 14 /
C DATA IMACH(15) / -64 /
C DATA IMACH(16) / 63 /
C
C MACHINE CONSTANTS FOR THE ELXSI 6400
C
C DATA IMACH( 1) / 5/
C DATA IMACH( 2) / 6/
C DATA IMACH( 3) / 6/
C DATA IMACH( 4) / 6/
C DATA IMACH( 5) / 32/
C DATA IMACH( 6) / 4/
C DATA IMACH( 7) / 2/
C DATA IMACH( 8) / 32/
C DATA IMACH( 9) /2147483647/
C DATA IMACH(10) / 2/
C DATA IMACH(11) / 24/
C DATA IMACH(12) / -126/
C DATA IMACH(13) / 127/
C DATA IMACH(14) / 53/
C DATA IMACH(15) / -1022/
C DATA IMACH(16) / 1023/
C
C MACHINE CONSTANTS FOR THE HARRIS 220
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 0 /
C DATA IMACH( 4) / 6 /
C DATA IMACH( 5) / 24 /
C DATA IMACH( 6) / 3 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 23 /
C DATA IMACH( 9) / 8388607 /
C DATA IMACH(10) / 2 /
C DATA IMACH(11) / 23 /
C DATA IMACH(12) / -127 /
C DATA IMACH(13) / 127 /
C DATA IMACH(14) / 38 /
C DATA IMACH(15) / -127 /
C DATA IMACH(16) / 127 /
C
C MACHINE CONSTANTS FOR THE HONEYWELL 600/6000 SERIES
C MACHINE CONSTANTS FOR THE HONEYWELL DPS 8/70 SERIES.
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 43 /
C DATA IMACH( 4) / 6 /
C DATA IMACH( 5) / 36 /
C DATA IMACH( 6) / 6 /
C DATA IMACH( 6) / 4 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 35 /
C DATA IMACH( 9) / O377777777777 /
@ -342,170 +59,14 @@ C DATA IMACH(12) / -127 /
C DATA IMACH(13) / 127 /
C DATA IMACH(14) / 63 /
C DATA IMACH(15) / -127 /
C DATA IMACH(16) / 127 /
C DATA IMACH(16) / 127 /, SC/987/
C
C MACHINE CONSTANTS FOR THE HP 2100
C 3 WORD DOUBLE PRECISION OPTION WITH FTN4
C
C DATA IMACH(1) / 5/
C DATA IMACH(2) / 6 /
C DATA IMACH(3) / 4 /
C DATA IMACH(4) / 1 /
C DATA IMACH(5) / 16 /
C DATA IMACH(6) / 2 /
C DATA IMACH(7) / 2 /
C DATA IMACH(8) / 15 /
C DATA IMACH(9) / 32767 /
C DATA IMACH(10)/ 2 /
C DATA IMACH(11)/ 23 /
C DATA IMACH(12)/ -128 /
C DATA IMACH(13)/ 127 /
C DATA IMACH(14)/ 39 /
C DATA IMACH(15)/ -128 /
C DATA IMACH(16)/ 127 /
C
C MACHINE CONSTANTS FOR THE HP 2100
C 4 WORD DOUBLE PRECISION OPTION WITH FTN4
C
C DATA IMACH(1) / 5 /
C DATA IMACH(2) / 6 /
C DATA IMACH(3) / 4 /
C DATA IMACH(4) / 1 /
C DATA IMACH(5) / 16 /
C DATA IMACH(6) / 2 /
C DATA IMACH(7) / 2 /
C DATA IMACH(8) / 15 /
C DATA IMACH(9) / 32767 /
C DATA IMACH(10)/ 2 /
C DATA IMACH(11)/ 23 /
C DATA IMACH(12)/ -128 /
C DATA IMACH(13)/ 127 /
C DATA IMACH(14)/ 55 /
C DATA IMACH(15)/ -128 /
C DATA IMACH(16)/ 127 /
C
C MACHINE CONSTANTS FOR THE HP 9000
C
C DATA IMACH(1) / 5 /
C DATA IMACH(2) / 6 /
C DATA IMACH(3) / 6 /
C DATA IMACH(3) / 7 /
C DATA IMACH(5) / 32 /
C DATA IMACH(6) / 4 /
C DATA IMACH(7) / 2 /
C DATA IMACH(8) / 32 /
C DATA IMACH(9) /2147483647 /
C DATA IMACH(10) / 2 /
C DATA IMACH(11) / 24 /
C DATA IMACH(12) / -126 /
C DATA IMACH(13) / 127 /
C DATA IMACH(14) / 53 /
C DATA IMACH(15) /-1015 /
C DATA IMACH(16) / 1017 /
C
C MACHINE CONSTANTS FOR THE IBM 360/370 SERIES,
C THE XEROX SIGMA 5/7/9, THE SEL SYSTEMS 85/86, AND
C THE PERKIN ELMER (INTERDATA) 7/32.
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 7 /
C DATA IMACH( 4) / 6 /
C DATA IMACH( 5) / 32 /
C DATA IMACH( 6) / 4 /
C DATA IMACH( 7) / 16 /
C DATA IMACH( 8) / 31 /
C DATA IMACH( 9) / Z7FFFFFFF /
C DATA IMACH(10) / 16 /
C DATA IMACH(11) / 6 /
C DATA IMACH(12) / -64 /
C DATA IMACH(13) / 63 /
C DATA IMACH(14) / 14 /
C DATA IMACH(15) / -64 /
C DATA IMACH(16) / 63 /
C
C MACHINE CONSTANTS FOR THE IBM PC
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 0 /
C DATA IMACH( 4) / 0 /
C DATA IMACH( 5) / 32 /
C DATA IMACH( 6) / 4 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 31 /
C DATA IMACH( 9) / 2147483647 /
C DATA IMACH(10) / 2 /
C DATA IMACH(11) / 24 /
C DATA IMACH(12) / -125 /
C DATA IMACH(13) / 127 /
C DATA IMACH(14) / 53 /
C DATA IMACH(15) / -1021 /
C DATA IMACH(16) / 1023 /
C
C MACHINE CONSTANTS FOR THE IBM RS 6000
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 6 /
C DATA IMACH( 4) / 0 /
C DATA IMACH( 5) / 32 /
C DATA IMACH( 6) / 4 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 31 /
C DATA IMACH( 9) / 2147483647 /
C DATA IMACH(10) / 2 /
C DATA IMACH(11) / 24 /
C DATA IMACH(12) / -125 /
C DATA IMACH(13) / 128 /
C DATA IMACH(14) / 53 /
C DATA IMACH(15) / -1021 /
C DATA IMACH(16) / 1024 /
C
C MACHINE CONSTANTS FOR THE PDP-10 (KA PROCESSOR)
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 5 /
C DATA IMACH( 4) / 6 /
C DATA IMACH( 5) / 36 /
C DATA IMACH( 6) / 5 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 35 /
C DATA IMACH( 9) / "377777777777 /
C DATA IMACH(10) / 2 /
C DATA IMACH(11) / 27 /
C DATA IMACH(12) / -128 /
C DATA IMACH(13) / 127 /
C DATA IMACH(14) / 54 /
C DATA IMACH(15) / -101 /
C DATA IMACH(16) / 127 /
C
C MACHINE CONSTANTS FOR THE PDP-10 (KI PROCESSOR)
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 5 /
C DATA IMACH( 4) / 6 /
C DATA IMACH( 5) / 36 /
C DATA IMACH( 6) / 5 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 35 /
C DATA IMACH( 9) / "377777777777 /
C DATA IMACH(10) / 2 /
C DATA IMACH(11) / 27 /
C DATA IMACH(12) / -128 /
C DATA IMACH(13) / 127 /
C DATA IMACH(14) / 62 /
C DATA IMACH(15) / -128 /
C DATA IMACH(16) / 127 /
C
C MACHINE CONSTANTS FOR PDP-11 FORTRAN SUPPORTING
C MACHINE CONSTANTS FOR PDP-11 FORTRANS SUPPORTING
C 32-BIT INTEGER ARITHMETIC.
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 5 /
C DATA IMACH( 3) / 7 /
C DATA IMACH( 4) / 6 /
C DATA IMACH( 5) / 32 /
C DATA IMACH( 6) / 4 /
@ -518,75 +79,20 @@ C DATA IMACH(12) / -127 /
C DATA IMACH(13) / 127 /
C DATA IMACH(14) / 56 /
C DATA IMACH(15) / -127 /
C DATA IMACH(16) / 127 /
C DATA IMACH(16) / 127 /, SC/987/
C
C MACHINE CONSTANTS FOR PDP-11 FORTRAN SUPPORTING
C 16-BIT INTEGER ARITHMETIC.
C MACHINE CONSTANTS FOR THE UNIVAC 1100 SERIES.
C
C NOTE THAT THE PUNCH UNIT, I1MACH(3), HAS BEEN SET TO 7
C WHICH IS APPROPRIATE FOR THE UNIVAC-FOR SYSTEM.
C IF YOU HAVE THE UNIVAC-FTN SYSTEM, SET IT TO 1.
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 5 /
C DATA IMACH( 4) / 6 /
C DATA IMACH( 5) / 16 /
C DATA IMACH( 6) / 2 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 15 /
C DATA IMACH( 9) / 32767 /
C DATA IMACH(10) / 2 /
C DATA IMACH(11) / 24 /
C DATA IMACH(12) / -127 /
C DATA IMACH(13) / 127 /
C DATA IMACH(14) / 56 /
C DATA IMACH(15) / -127 /
C DATA IMACH(16) / 127 /
C
C MACHINE CONSTANTS FOR THE SILICON GRAPHICS IRIS
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 6 /
C DATA IMACH( 4) / 0 /
C DATA IMACH( 5) / 32 /
C DATA IMACH( 6) / 4 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 31 /
C DATA IMACH( 9) / 2147483647 /
C DATA IMACH(10) / 2 /
C DATA IMACH(11) / 23 /
C DATA IMACH(12) / -126 /
C DATA IMACH(13) / 127 /
C DATA IMACH(14) / 52 /
C DATA IMACH(15) / -1022 /
C DATA IMACH(16) / 1023 /
C
C MACHINE CONSTANTS FOR THE SUN
C
C DATA IMACH(1) / 5 /
C DATA IMACH(2) / 6 /
C DATA IMACH(3) / 6 /
C DATA IMACH(4) / 6 /
C DATA IMACH(5) / 32 /
C DATA IMACH(6) / 4 /
C DATA IMACH(7) / 2 /
C DATA IMACH(8) / 31 /
C DATA IMACH(9) /2147483647 /
C DATA IMACH(10)/ 2 /
C DATA IMACH(11)/ 24 /
C DATA IMACH(12)/ -125 /
C DATA IMACH(13)/ 128 /
C DATA IMACH(14)/ 53 /
C DATA IMACH(15)/ -1021 /
C DATA IMACH(16)/ 1024 /
C
C MACHINE CONSTANTS FOR THE UNIVAC 1100 SERIES FTN COMPILER
C
C
C DATA IMACH( 1) / 5 /
C DATA IMACH( 2) / 6 /
C DATA IMACH( 3) / 1 /
C DATA IMACH( 3) / 7 /
C DATA IMACH( 4) / 6 /
C DATA IMACH( 5) / 36 /
C DATA IMACH( 6) / 4 /
C DATA IMACH( 6) / 6 /
C DATA IMACH( 7) / 2 /
C DATA IMACH( 8) / 35 /
C DATA IMACH( 9) / O377777777777 /
@ -596,78 +102,190 @@ C DATA IMACH(12) / -128 /
C DATA IMACH(13) / 127 /
C DATA IMACH(14) / 60 /
C DATA IMACH(15) /-1024 /
C DATA IMACH(16) / 1023 /
C
C MACHINE CONSTANTS FOR THE VAX 11/780
C
C DATA IMACH(1) / 5 /
C DATA IMACH(2) / 6 /
C DATA IMACH(3) / 5 /
C DATA IMACH(4) / 6 /
C DATA IMACH(5) / 32 /
C DATA IMACH(6) / 4 /
C DATA IMACH(7) / 2 /
C DATA IMACH(8) / 31 /
C DATA IMACH(9) /2147483647 /
C DATA IMACH(10)/ 2 /
C DATA IMACH(11)/ 24 /
C DATA IMACH(12)/ -127 /
C DATA IMACH(13)/ 127 /
C DATA IMACH(14)/ 56 /
C DATA IMACH(15)/ -127 /
C DATA IMACH(16)/ 127 /
C
C MACHINE CONSTANTS FOR THE VAX 11/780, G-FLOAT OPTION
C
C DATA IMACH(1) / 5 /
C DATA IMACH(2) / 6 /
C DATA IMACH(3) / 5 /
C DATA IMACH(4) / 6 /
C DATA IMACH(5) / 32 /
C DATA IMACH(6) / 4 /
C DATA IMACH(7) / 2 /
C DATA IMACH(8) / 31 /
C DATA IMACH(9) /2147483647 /
C DATA IMACH(10)/ 2 /
C DATA IMACH(11)/ 24 /
C DATA IMACH(12)/ -127 /
C DATA IMACH(13)/ 127 /
C DATA IMACH(14)/ 53 /
C DATA IMACH(15)/ -1022 /
C DATA IMACH(16)/ 1023 /
C
C MACHINE CONSTANTS FOR THE Z80 MICROPROCESSOR
C
C DATA IMACH( 1) / 1/
C DATA IMACH( 2) / 1/
C DATA IMACH( 3) / 0/
C DATA IMACH( 4) / 1/
C DATA IMACH( 5) / 16/
C DATA IMACH( 6) / 2/
C DATA IMACH( 7) / 2/
C DATA IMACH( 8) / 15/
C DATA IMACH( 9) / 32767/
C DATA IMACH(10) / 2/
C DATA IMACH(11) / 24/
C DATA IMACH(12) / -127/
C DATA IMACH(13) / 127/
C DATA IMACH(14) / 56/
C DATA IMACH(15) / -127/
C DATA IMACH(16) / 127/
C
C
C***FIRST EXECUTABLE STATEMENT I1MACH
IF (I .LT. 1 .OR. I .GT. 16) GO TO 10
C DATA IMACH(16) / 1023 /, SC/987/
C
IF (SC .NE. 987) THEN
* *** CHECK FOR AUTODOUBLE ***
SMALL(2) = 0
RMACH = 1E13
IF (SMALL(2) .NE. 0) THEN
* *** AUTODOUBLED ***
IF ( (SMALL(1) .EQ. 1117925532
* .AND. SMALL(2) .EQ. -448790528)
* .OR. (SMALL(2) .EQ. 1117925532
* .AND. SMALL(1) .EQ. -448790528)) THEN
* *** IEEE ***
IMACH(10) = 2
IMACH(14) = 53
IMACH(15) = -1021
IMACH(16) = 1024
ELSE IF ( SMALL(1) .EQ. -2065213935
* .AND. SMALL(2) .EQ. 10752) THEN
* *** VAX WITH D_FLOATING ***
IMACH(10) = 2
IMACH(14) = 56
IMACH(15) = -127
IMACH(16) = 127
ELSE IF ( SMALL(1) .EQ. 1267827943
* .AND. SMALL(2) .EQ. 704643072) THEN
* *** IBM MAINFRAME ***
IMACH(10) = 16
IMACH(14) = 14
IMACH(15) = -64
IMACH(16) = 63
ELSE
WRITE(*,9010)
STOP 777
END IF
IMACH(11) = IMACH(14)
IMACH(12) = IMACH(15)
IMACH(13) = IMACH(16)
ELSE
RMACH = 1234567.
IF (SMALL(1) .EQ. 1234613304) THEN
* *** IEEE ***
IMACH(10) = 2
IMACH(11) = 24
IMACH(12) = -125
IMACH(13) = 128
IMACH(14) = 53
IMACH(15) = -1021
IMACH(16) = 1024
SC = 987
ELSE IF (SMALL(1) .EQ. -1271379306) THEN
* *** VAX ***
IMACH(10) = 2
IMACH(11) = 24
IMACH(12) = -127
IMACH(13) = 127
IMACH(14) = 56
IMACH(15) = -127
IMACH(16) = 127
SC = 987
ELSE IF (SMALL(1) .EQ. 1175639687) THEN
* *** IBM MAINFRAME ***
IMACH(10) = 16
IMACH(11) = 6
IMACH(12) = -64
IMACH(13) = 63
IMACH(14) = 14
IMACH(15) = -64
IMACH(16) = 63
SC = 987
ELSE IF (SMALL(1) .EQ. 1251390520) THEN
* *** CONVEX C-1 ***
IMACH(10) = 2
IMACH(11) = 24
IMACH(12) = -128
IMACH(13) = 127
IMACH(14) = 53
IMACH(15) = -1024
IMACH(16) = 1023
ELSE
DO 10 I3 = 1, 3
J = SMALL(1) / 10000000
K = SMALL(1) - 10000000*J
IF (K .NE. T3E(I3)) GO TO 20
SMALL(1) = J
10 CONTINUE
* *** CRAY T3E ***
IMACH( 1) = 5
IMACH( 2) = 6
IMACH( 3) = 0
IMACH( 4) = 0
IMACH( 5) = 64
IMACH( 6) = 8
IMACH( 7) = 2
IMACH( 8) = 63
CALL I1MCR1(IMACH(9), K, 32767, 16777215, 16777215)
IMACH(10) = 2
IMACH(11) = 53
IMACH(12) = -1021
IMACH(13) = 1024
IMACH(14) = 53
IMACH(15) = -1021
IMACH(16) = 1024
GO TO 35
20 CALL I1MCR1(J, K, 16405, 9876536, 0)
IF (SMALL(1) .NE. J) THEN
WRITE(*,9020)
STOP 777
END IF
* *** CRAY 1, XMP, 2, AND 3 ***
IMACH(1) = 5
IMACH(2) = 6
IMACH(3) = 102
IMACH(4) = 6
IMACH(5) = 46
IMACH(6) = 8
IMACH(7) = 2
IMACH(8) = 45
CALL I1MCR1(IMACH(9), K, 0, 4194303, 16777215)
IMACH(10) = 2
IMACH(11) = 47
IMACH(12) = -8188
IMACH(13) = 8189
IMACH(14) = 94
IMACH(15) = -8141
IMACH(16) = 8189
GO TO 35
END IF
END IF
IMACH( 1) = 5
IMACH( 2) = 6
IMACH( 3) = 7
IMACH( 4) = 6
IMACH( 5) = 32
IMACH( 6) = 4
IMACH( 7) = 2
IMACH( 8) = 31
IMACH( 9) = 2147483647
35 SC = 987
END IF
9010 FORMAT(/' Adjust autodoubled I1MACH by uncommenting data'/
* ' statements appropriate for your machine and setting'/
* ' IMACH(I) = IMACH(I+3) for I = 11, 12, and 13.')
9020 FORMAT(/' Adjust I1MACH by uncommenting data statements'/
* ' appropriate for your machine.')
IF (I .LT. 1 .OR. I .GT. 16) GO TO 40
I1MACH = IMACH(I)
RETURN
C
10 CONTINUE
WRITE (UNIT = OUTPUT, FMT = 9000)
9000 FORMAT ('1ERROR 1 IN I1MACH - I OUT OF BOUNDS')
C
C CALL FDUMP
C
C
40 WRITE(*,*) 'I1MACH(I): I =',I,' is out of bounds.'
STOP
* /* C source for I1MACH -- remove the * in column 1 */
* /* Note that some values may need changing. */
*#include <stdio.h>
*#include <float.h>
*#include <limits.h>
*#include <math.h>
*
*long i1mach_(long *i)
*{
* switch(*i){
* case 1: return 5; /* standard input */
* case 2: return 6; /* standard output */
* case 3: return 7; /* standard punch */
* case 4: return 0; /* standard error */
* case 5: return 32; /* bits per integer */
* case 6: return sizeof(int);
* case 7: return 2; /* base for integers */
* case 8: return 31; /* digits of integer base */
* case 9: return LONG_MAX;
* case 10: return FLT_RADIX;
* case 11: return FLT_MANT_DIG;
* case 12: return FLT_MIN_EXP;
* case 13: return FLT_MAX_EXP;
* case 14: return DBL_MANT_DIG;
* case 15: return DBL_MIN_EXP;
* case 16: return DBL_MAX_EXP;
* }
* fprintf(stderr, "invalid argument: i1mach(%ld)\n", *i);
* exit(1);return 0; /* some compilers demand return values */
*}
END
SUBROUTINE I1MCR1(A, A1, B, C, D)
**** SPECIAL COMPUTATION FOR OLD CRAY MACHINES ****
INTEGER A, A1, B, C, D
A1 = 16777216*B + C
A = 16777216*A1 + D
END