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68 lines
2.2 KiB
Plaintext
68 lines
2.2 KiB
Plaintext
.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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.TH "FEGETENV" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
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.\" fegetenv
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.SH NAME
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fegetenv, fesetenv \- get and set current floating-point environment
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.SH SYNOPSIS
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.LP
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\fB#include <fenv.h>
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.br
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.sp
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int fegetenv(fenv_t *\fP\fIenvp\fP\fB);
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.br
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int fesetenv(const fenv_t *\fP\fIenvp\fP\fB);
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.br
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\fP
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.SH DESCRIPTION
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.LP
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The \fIfegetenv\fP() function shall attempt to store the current floating-point
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environment in the object pointed to by
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\fIenvp\fP.
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.LP
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The \fIfesetenv\fP() function shall attempt to establish the floating-point
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environment represented by the object pointed to by
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\fIenvp\fP. The argument \fIenvp\fP shall point to an object set by
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a call to \fIfegetenv\fP() or \fIfeholdexcept\fP(), or equal a floating-point
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environment macro. The \fIfesetenv\fP()
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function does not raise floating-point exceptions, but only installs
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the state of the floating-point status flags represented
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through its argument.
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.SH RETURN VALUE
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.LP
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If the representation was successfully stored, \fIfegetenv\fP() shall
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return zero. Otherwise, it shall return a non-zero value.
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If the environment was successfully established, \fIfesetenv\fP()
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shall return zero. Otherwise, it shall return a non-zero
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value.
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.SH ERRORS
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.LP
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No errors are defined.
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.LP
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\fIThe following sections are informative.\fP
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.SH EXAMPLES
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.LP
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None.
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.SH APPLICATION USAGE
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.LP
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None.
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.SH RATIONALE
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.LP
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None.
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.SH FUTURE DIRECTIONS
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.LP
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None.
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.SH SEE ALSO
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.LP
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\fIfeholdexcept\fP() , \fIfeupdateenv\fP() , the Base
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Definitions volume of IEEE\ Std\ 1003.1-2001, \fI<fenv.h>\fP
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.SH COPYRIGHT
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Portions of this text are reprinted and reproduced in electronic form
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from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
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-- Portable Operating System Interface (POSIX), The Open Group Base
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Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
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Electrical and Electronics Engineers, Inc and The Open Group. In the
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event of any discrepancy between this version and the original IEEE and
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The Open Group Standard, the original IEEE and The Open Group Standard
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is the referee document. The original Standard can be obtained online at
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http://www.opengroup.org/unix/online.html .
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