Annotated edit history of
isnan(3) version 1, including all changes.
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ISINF |
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!!!ISINF |
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NAME |
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SYNOPSIS |
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DESCRIPTION |
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CONFORMING TO |
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---- |
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!!NAME |
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isinf, isnan, finite - test for infinity or not-a-number (NaN) |
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!!SYNOPSIS |
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__#include |
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__ ''value''__); |
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int isnan(double__ ''value''__); |
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int finite(double__ ''value''__); |
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__ |
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!!DESCRIPTION |
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The __isinf()__ function returns -1 if ''value'' |
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represents negative infinity, 1 if ''value'' represents |
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positive infinity, and 0 otherwise. |
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The __isnan()__ function returns a non-zero value if |
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''value'' is |
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'' |
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The __finite()__ function returns a non-zero value if |
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''value'' is neither infinite nor a |
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'' |
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!!CONFORMING TO |
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BSD 4.3 |
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---- |
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