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%2Fisinf.html | 46 ----------------------------------- 1 file changed, 46 deletions(-) delete mode 100644 devdocs/c/numeric%2Fmath%2Fisinf.html (limited to 'devdocs/c/numeric%2Fmath%2Fisinf.html') diff --git a/devdocs/c/numeric%2Fmath%2Fisinf.html b/devdocs/c/numeric%2Fmath%2Fisinf.html deleted file mode 100644 index 57713b0e..00000000 --- a/devdocs/c/numeric%2Fmath%2Fisinf.html +++ /dev/null @@ -1,46 +0,0 @@ -

isinf

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

Determines if the given floating-point number arg is positive or negative infinity. 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 an infinite value, ​0​ otherwise.

-

Example

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

Possible output:

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

References

See also

- - - - -
-
(C99)
 classifies the given floating-point value
(function macro)
-
(C99)
 checks if the given number has finite value
(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 isinf
-

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

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