.TH "std::error_category" 3cxx "Tue Jul 18 2023" "libstdc++" \" -*- nroff -*-
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.SH NAME
std::error_category
.SH SYNOPSIS
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.PP
.SS "Public Member Functions"

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.RI "\fBerror_category\fP (const \fBerror_category\fP &)=delete"
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.RI "virtual \fBerror_condition\fP \fBdefault_error_condition\fP (int __i) const noexcept"
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.RI "virtual bool \fBequivalent\fP (const \fBerror_code\fP &__code, int __i) const noexcept"
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.RI "virtual bool \fBequivalent\fP (int __i, const \fBerror_condition\fP &__cond) const noexcept"
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.RI "virtual \fBstring\fP \fBmessage\fP (int) const =0"
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.RI "virtual const char * \fBname\fP () const noexcept=0"
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.RI "bool \fBoperator!=\fP (const \fBerror_category\fP &__other) const noexcept"
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.RI "bool \fBoperator<\fP (const \fBerror_category\fP &__other) const noexcept"
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.RI "\fBerror_category\fP & \fBoperator=\fP (const \fBerror_category\fP &)=delete"
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.RI "bool \fBoperator==\fP (const \fBerror_category\fP &__other) const noexcept"
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.SH "Detailed Description"
.PP 
Abstract base class for types defining a category of error codes\&.
.PP
An error category defines a context that give meaning to the integer stored in an \fCerror_code\fP or \fCerror_condition\fP object\&. For example, the standard \fCerrno\fP constants such a \fCEINVAL\fP and \fCENOMEM\fP are associated with the 'generic' category and other OS-specific error numbers are associated with the 'system' category, but a user-defined category might give different meanings to the same numerical values\&. 

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