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- isnan C Library Procedures isnan
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- NNAAMMEE
- isnan, isinf - Determine whether double-precision floating
- point numbers are not-a-number or infinity.
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- SSYYNNOOPPSSIISS
- int
- iissnnaann(_v_a_l_u_e)
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- int
- iissiinnff(_v_a_l_u_e)
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- AARRGGUUMMEENNTTSS
- double _v_a_l_u_e (in) Double-precision floating
- point number to check for
- type.
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- DDEESSCCRRIIPPTTIIOONN
- iissnnaann returns 1 if its argument is an IEEE double-precision
- floating-point number corresponding to NaN (not a number).
- iissnnaann returns 0 otherwise.
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- iissiinnff returns 1 if its argument is an IEEE double-precision
- floating-point number corresponding to infinity. iissiinnff
- returns 0 otherwise.
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- KKEEYYWWOORRDDSS
- not a number, infinity, IEEE, double
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- Sprite v.1.0 Printed: November 28, 1989 1
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