From 82ba818ff456bcd6d56a06226e3f27e98fbb55c3 Mon Sep 17 00:00:00 2001 From: Craig Jennings Date: Thu, 14 Aug 2025 22:58:58 -0500 Subject: removing all downloaded devdocs files --- devdocs/c/numeric%2Fmath%2Fisfinite.html | 44 -------------------------------- 1 file changed, 44 deletions(-) delete mode 100644 devdocs/c/numeric%2Fmath%2Fisfinite.html (limited to 'devdocs/c/numeric%2Fmath%2Fisfinite.html') diff --git a/devdocs/c/numeric%2Fmath%2Fisfinite.html b/devdocs/c/numeric%2Fmath%2Fisfinite.html deleted file mode 100644 index f700b213..00000000 --- a/devdocs/c/numeric%2Fmath%2Fisfinite.html +++ /dev/null @@ -1,44 +0,0 @@ -

isfinite

Defined in header <math.h> 
#define isfinite(arg) /* implementation defined */
-		 (since C99)

Determines if the given floating point number arg has finite value i.e. it is normal, subnormal or zero, but not infinite or NaN. The macro returns an integral value.

-

FLT_EVAL_METHOD is ignored: even if the argument is evaluated with more range and precision than its type, it is first converted to its semantic type, and the classification is based on that.

-

Parameters

- -
arg - floating point value

Return value

Nonzero integral value if arg has finite value, ​0​ otherwise.

-

Example

#include <stdio.h>
-#include <math.h>
-#include <float.h>
- 
-int main(void)
-{
-    printf("isfinite(NAN)         = %d\n", isfinite(NAN));
-    printf("isfinite(INFINITY)    = %d\n", isfinite(INFINITY));
-    printf("isfinite(0.0)         = %d\n", isfinite(0.0));
-    printf("isfinite(DBL_MIN/2.0) = %d\n", isfinite(DBL_MIN/2.0));
-    printf("isfinite(1.0)         = %d\n", isfinite(1.0));
-    printf("isfinite(exp(800))    = %d\n", isfinite(exp(800)));
-}

Possible output:

-
isfinite(NAN)         = 0
-isfinite(INFINITY)    = 0
-isfinite(0.0)         = 1
-isfinite(DBL_MIN/2.0) = 1
-isfinite(1.0)         = 1
-isfinite(exp(800))    = 0

References

See also

- - - - -
-
(C99)
 classifies the given floating-point value
(function macro)
-
(C99)
 checks if the given number is infinite
(function macro)
-
(C99)
 checks if the given number is NaN
(function macro)
-
(C99)
 checks if the given number is normal
(function macro)
C++ documentation for isfinite
-

- © cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
- https://en.cppreference.com/w/c/numeric/math/isfinite -

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