.TH "std::exception" 3cxx "Wed Jul 14 2021" "libstdc++" \" -*- nroff -*-
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.SH NAME
std::exception \- Base class for all library exceptions\&.  

.SH SYNOPSIS
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.PP
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Inherited by __gnu_cxx::__concurrence_broadcast_error, __gnu_cxx::__concurrence_lock_error, __gnu_cxx::__concurrence_unlock_error, __gnu_cxx::__concurrence_wait_error, \fB__gnu_cxx::forced_error\fP, \fB__gnu_cxx::recursive_init_error\fP, \fBstd::bad_alloc\fP, \fBstd::bad_cast\fP, \fBstd::bad_exception\fP, \fBstd::bad_function_call\fP, \fBstd::bad_typeid\fP, \fBstd::bad_weak_ptr\fP, \fBstd::ios_base::failure\fP, \fBstd::logic_error\fP, and \fBstd::runtime_error\fP\&.
.SS "Public Member Functions"

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.RI "\fBexception\fP (const \fBexception\fP &)=default"
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.RI "\fBexception\fP (\fBexception\fP &&)=default"
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.RI "\fBexception\fP & \fBoperator=\fP (const \fBexception\fP &)=default"
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.RI "\fBexception\fP & \fBoperator=\fP (\fBexception\fP &&)=default"
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.RI "virtual const char * \fBwhat\fP () const noexcept"
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.SH "Detailed Description"
.PP 
Base class for all library exceptions\&. 

This is the base class for all exceptions thrown by the standard library, and by certain language expressions\&. You are free to derive your own exception classes, or use a different hierarchy, or to throw non-class data (e\&.g\&., fundamental types)\&. 
.PP
Definition at line 60 of file exception\&.h\&.
.SH "Member Function Documentation"
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.SS "virtual const char* std::exception::what () const\fC [virtual]\fP, \fC [noexcept]\fP"
Returns a C-style character string describing the general cause of the current error\&. 
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Reimplemented in \fBstd::bad_typeid\fP, \fBstd::bad_cast\fP, \fBstd::bad_exception\fP, \fBstd::runtime_error\fP, \fBstd::logic_error\fP, \fBstd::future_error\fP, \fBstd::experimental::filesystem::v1::filesystem_error\fP, \fBstd::experimental::fundamentals_v1::bad_any_cast\fP, \fBstd::bad_function_call\fP, \fBstd::bad_weak_ptr\fP, \fBstd::bad_alloc\fP, and \fBstd::ios_base::failure\fP\&.

.SH "Author"
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Generated automatically by Doxygen for libstdc++ from the source code\&.