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%2Ffenv%2Fferaiseexcept.html | 55 --------------------------- 1 file changed, 55 deletions(-) delete mode 100644 devdocs/c/numeric%2Ffenv%2Fferaiseexcept.html (limited to 'devdocs/c/numeric%2Ffenv%2Fferaiseexcept.html') diff --git a/devdocs/c/numeric%2Ffenv%2Fferaiseexcept.html b/devdocs/c/numeric%2Ffenv%2Fferaiseexcept.html deleted file mode 100644 index ca35e49d..00000000 --- a/devdocs/c/numeric%2Ffenv%2Fferaiseexcept.html +++ /dev/null @@ -1,55 +0,0 @@ -

feraiseexcept

Defined in header <fenv.h> 
int feraiseexcept( int excepts );
-		 (since C99)

Attempts to raise all floating-point exceptions listed in excepts (a bitwise OR of the floating-point exception macros). If one of the exceptions is FE_OVERFLOW or FE_UNDERFLOW, this function may additionally raise FE_INEXACT. The order in which the exceptions are raised is unspecified, except that FE_OVERFLOW and FE_UNDERFLOW are always raised before FE_INEXACT.

-

Parameters

- -
excepts - bitmask listing the exception flags to raise

Return value

​0​ if all listed exceptions were raised, non-zero value otherwise.

-

Example

#include <stdio.h>
-#include <fenv.h>
- 
-#pragma STDC FENV_ACCESS ON
- 
-void show_fe_exceptions(void)
-{
-    printf("current exceptions raised: ");
-    if(fetestexcept(FE_DIVBYZERO))     printf(" FE_DIVBYZERO");
-    if(fetestexcept(FE_INEXACT))       printf(" FE_INEXACT");
-    if(fetestexcept(FE_INVALID))       printf(" FE_INVALID");
-    if(fetestexcept(FE_OVERFLOW))      printf(" FE_OVERFLOW");
-    if(fetestexcept(FE_UNDERFLOW))     printf(" FE_UNDERFLOW");
-    if(fetestexcept(FE_ALL_EXCEPT)==0) printf(" none");
-    feclearexcept(FE_ALL_EXCEPT);
-    printf("\n");
-}
- 
-double some_computation(void)
-{
-    /* Computation reaches a state that causes overflow. */
-    int r = feraiseexcept(FE_OVERFLOW | FE_INEXACT);
-    printf("feraiseexcept() %s\n", (r?"fails":"succeeds"));
-    return 0.0;
-}
- 
-int main(void)
-{
-    some_computation();
-    show_fe_exceptions();
- 
-    return 0;
-}

Output:

-
feraiseexcept() succeeds
-current exceptions raised:  FE_INEXACT FE_OVERFLOW

References

See also

- - -
-
(C99)
 clears the specified floating-point status flags
(function)
-
(C99)
 determines which of the specified floating-point status flags are set
(function)
C++ documentation for feraiseexcept
-

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

-
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