Difference between revisions of "cpp/numeric/fenv/feraiseexcept"
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std::feclearexcept(FE_ALL_EXCEPT); | std::feclearexcept(FE_ALL_EXCEPT); | ||
int r = std::feraiseexcept(FE_UNDERFLOW {{!}} FE_DIVBYZERO); | int r = std::feraiseexcept(FE_UNDERFLOW {{!}} FE_DIVBYZERO); | ||
| − | std::cout << "Raising divbyzero and underflow simultaneously " << (r?"fails":"succeeds") << " and results in\n"; | + | std::cout << "Raising divbyzero and underflow simultaneously " |
| + | << (r?"fails":"succeeds") << " and results in\n"; | ||
int e = std::fetestexcept(FE_ALL_EXCEPT); | int e = std::fetestexcept(FE_ALL_EXCEPT); | ||
if(e & FE_DIVBYZERO) | if(e & FE_DIVBYZERO) | ||
Revision as of 14:11, 26 February 2012
Template:cpp/numeric/fenv/sidebar Template:ddcl list begin <tr class="t-dsc-header">
<td>Defined in header
</td>
<cfenv>
<td></td> <td></td> </tr> <tr class="t-dcl ">
<td >int feraiseexcept(int excepts);
</td>
<td class="t-dcl-nopad"> </td> <td > (since C++11) </td> </tr> Template:ddcl list end
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.
Contents |
Parameters
| excepts | - | bitmask listing the exception flags to raise |
Return value
Template:cpp if all listed exceptions were raised, non-zero value otherwise.
