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Last change
on this file was 1392, checked in by bird, 21 years ago |
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This commit was generated by cvs2svn to compensate for changes in r1391,
which included commits to RCS files with non-trunk default branches.
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Property cvs2svn:cvs-rev
set to
1.1.1.2
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Property svn:eol-style
set to
native
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Property svn:executable
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*
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File size:
522 bytes
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| 1 | #include "f2c.h"
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| 2 |
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| 3 | #ifdef IEEE_drem
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| 4 | double drem (double, double);
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| 5 | #else
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| 6 | #undef abs
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| 7 | #include <math.h>
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| 8 | #endif
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| 9 | double
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| 10 | r_mod (real * x, real * y)
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| 11 | {
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| 12 | #ifdef IEEE_drem
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| 13 | double xa, ya, z;
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| 14 | if ((ya = *y) < 0.)
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| 15 | ya = -ya;
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| 16 | z = drem (xa = *x, ya);
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| 17 | if (xa > 0)
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| 18 | {
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| 19 | if (z < 0)
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| 20 | z += ya;
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| 21 | }
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| 22 | else if (z > 0)
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| 23 | z -= ya;
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| 24 | return z;
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| 25 | #else
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| 26 | double quotient;
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| 27 | if ((quotient = (double) *x / *y) >= 0)
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| 28 | quotient = floor (quotient);
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| 29 | else
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| 30 | quotient = -floor (-quotient);
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| 31 | return (*x - (*y) * quotient);
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| 32 | #endif
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| 33 | }
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