Fix typo.

From-SVN: r25273

gcc/f/intdoc.in

@@ -2584,7 +2584,7 @@ to such programs, to wrap around
 (change from a larger value to a smaller one)
 as of the Year 10000.
 
-@xref{Fdate Intrinsic (subroutine)} for an equivalent routine.
+@xref{FDate Intrinsic (subroutine)} for an equivalent routine.
 ")
 
 DEFDOC (IBCLR, "Clear a bit.", "\

gcc/f/intdoc.texi

@@ -46,7 +46,7 @@
 @end ifset
 @ifset familyF77
 * ALog Intrinsic::      Natural logarithm (archaic).
-* ALog10 Intrinsic::    Natural logarithm (archaic).
+* ALog10 Intrinsic::    Common logarithm (archaic).
 * AMax0 Intrinsic::     Maximum value (archaic).
 * AMax1 Intrinsic::     Maximum value (archaic).
 * AMin0 Intrinsic::     Minimum value (archaic).
@@ -240,7 +240,7 @@
 @ifset familyF77
 * DInt Intrinsic::      Truncate to whole number (archaic).
 * DLog Intrinsic::      Natural logarithm (archaic).
-* DLog10 Intrinsic::    Natural logarithm (archaic).
+* DLog10 Intrinsic::    Common logarithm (archaic).
 * DMax1 Intrinsic::     Maximum value (archaic).
 * DMin1 Intrinsic::     Minimum value (archaic).
 * DMod Intrinsic::      Remainder (archaic).
@@ -274,10 +274,10 @@
 * DTanH Intrinsic::     Hyperbolic tangent (archaic).
 @end ifset
 @ifset familyF2U
-* Dtime Intrinsic (subroutine):: Get elapsed time since last time.
+* DTime Intrinsic (subroutine):: Get elapsed time since last time.
 @end ifset
 @ifset familyBADU77
-* Dtime Intrinsic (function):: Get elapsed time since last time.
+* DTime Intrinsic (function):: Get elapsed time since last time.
 @end ifset
 @ifset familyF90
 * EOShift Intrinsic::   (Reserved for future use.)
@@ -297,8 +297,8 @@
 * Exponent Intrinsic::  (Reserved for future use.)
 @end ifset
 @ifset familyF2U
-* Fdate Intrinsic (subroutine):: Get current time as Day Mon dd hh:mm:ss yyyy.
-* Fdate Intrinsic (function):: Get current time as Day Mon dd hh:mm:ss yyyy.
+* FDate Intrinsic (subroutine):: Get current time as Day Mon dd hh:mm:ss yyyy.
+* FDate Intrinsic (function):: Get current time as Day Mon dd hh:mm:ss yyyy.
 * FGet Intrinsic (subroutine):: Read a character from unit 5 stream-wise.
 @end ifset
 @ifset familyBADU77
@@ -530,7 +530,7 @@
 @end ifset
 @ifset familyF77
 * Log Intrinsic::       Natural logarithm.
-* Log10 Intrinsic::     Natural logarithm.
+* Log10 Intrinsic::     Common logarithm.
 @end ifset
 @ifset familyF90
 * Logical Intrinsic::   (Reserved for future use.)
@@ -2626,6 +2626,16 @@ Returns in @var{Seconds} the current value of the system time.
 This implementation of the Fortran 95 intrinsic is just an alias for
 @code{second} @xref{Second Intrinsic (subroutine)}.
 
+@cindex wraparound, timings
+@cindex limits, timings
+On some systems, the underlying timings are represented
+using types with sufficiently small limits that overflows
+(wraparounds) are possible, such as 32-bit types.
+Therefore, the values returned by this intrinsic
+might be, or become, negative,
+or numerically less than previous values,
+during a single run of the compiled program.
+
 @node CShift Intrinsic
 @subsubsection CShift Intrinsic
 @cindex CShift intrinsic
@@ -2966,7 +2976,11 @@ representing the numeric day of the month @var{dd}, a three-character
 abbreviation of the month name @var{mmm} and the last two digits of
 the year @var{yy}, e.g.@: @samp{25-Nov-96}.
 
+@cindex Y2K compliance
+@cindex Year 2000 compliance
 This intrinsic is not recommended, due to the year 2000 approaching.
+Therefore, programs making use of this intrinsic
+might not be Year 2000 (Y2K) compliant.
 @xref{CTime Intrinsic (subroutine)}, for information on obtaining more digits
 for the current (or any) date.
 
@@ -3016,6 +3030,17 @@ minutes from UTC, hour of the day, minutes of the hour and milliseconds
 of the second in successive values of the array.
 @end table
 
+@cindex Y10K compliance
+@cindex Year 10000 compliance
+@cindex wraparound, Y10K
+@cindex limits, Y10K
+Programs making use of this intrinsic
+might not be Year 10000 (Y10K) compliant.
+For example, the date might appear,
+to such programs, to wrap around
+(change from a larger value to a smaller one)
+as of the Year 10000.
+
 On systems where a millisecond timer isn't available, the millisecond
 value is returned as zero.
 
@@ -4087,14 +4112,14 @@ to one type for @var{X}.
 
 @end ifset
 @ifset familyF2U
-@node Dtime Intrinsic (subroutine)
-@subsubsection Dtime Intrinsic (subroutine)
-@cindex Dtime intrinsic
-@cindex intrinsics, Dtime
+@node DTime Intrinsic (subroutine)
+@subsubsection DTime Intrinsic (subroutine)
+@cindex DTime intrinsic
+@cindex intrinsics, DTime
 
 @noindent
 @example
-CALL Dtime(@var{Result}, @var{TArray})
+CALL DTime(@var{Result}, @var{TArray})
 @end example
 
 @noindent
@@ -4119,26 +4144,36 @@ The value of @var{Result} is equal to @samp{@var{TArray}(1) + @var{TArray}(2)}.
 Subsequent invocations of @samp{DTIME()} set values based on accumulations
 since the previous invocation.
 
+@cindex wraparound, timings
+@cindex limits, timings
+On some systems, the underlying timings are represented
+using types with sufficiently small limits that overflows
+(wraparounds) are possible, such as 32-bit types.
+Therefore, the values returned by this intrinsic
+might be, or become, negative,
+or numerically less than previous values,
+during a single run of the compiled program.
+
 Some non-GNU implementations of Fortran provide this intrinsic as
 only a function, not as a subroutine.
 
 For information on other intrinsics with the same name:
-@xref{Dtime Intrinsic (function)}.
+@xref{DTime Intrinsic (function)}.
 
 @end ifset
 @ifset familyBADU77
-@node Dtime Intrinsic (function)
-@subsubsection Dtime Intrinsic (function)
-@cindex Dtime intrinsic
-@cindex intrinsics, Dtime
+@node DTime Intrinsic (function)
+@subsubsection DTime Intrinsic (function)
+@cindex DTime intrinsic
+@cindex intrinsics, DTime
 
 @noindent
 @example
-Dtime(@var{TArray})
+DTime(@var{TArray})
 @end example
 
 @noindent
-Dtime: @code{REAL(KIND=1)} function.
+DTime: @code{REAL(KIND=1)} function.
 
 @noindent
 @var{TArray}: @code{REAL(KIND=1)}; DIMENSION(2); INTENT(OUT).
@@ -4159,11 +4194,21 @@ The functions' value is equal to @samp{@var{TArray}(1) + @var{TArray}(2)}.
 Subsequent invocations of @samp{DTIME()} return values accumulated since the
 previous invocation.
 
+@cindex wraparound, timings
+@cindex limits, timings
+On some systems, the underlying timings are represented
+using types with sufficiently small limits that overflows
+(wraparounds) are possible, such as 32-bit types.
+Therefore, the values returned by this intrinsic
+might be, or become, negative,
+or numerically less than previous values,
+during a single run of the compiled program.
+
 Due to the side effects performed by this intrinsic, the function
 form is not recommended.
 
 For information on other intrinsics with the same name:
-@xref{Dtime Intrinsic (subroutine)}.
+@xref{DTime Intrinsic (subroutine)}.
 
 @end ifset
 @ifset familyF90
@@ -4270,6 +4315,16 @@ and the user and system components of this in @samp{@var{TArray}(1)}
 and @samp{@var{TArray}(2)} respectively.
 The value of @var{Result} is equal to @samp{@var{TArray}(1) + @var{TArray}(2)}.
 
+@cindex wraparound, timings
+@cindex limits, timings
+On some systems, the underlying timings are represented
+using types with sufficiently small limits that overflows
+(wraparounds) are possible, such as 32-bit types.
+Therefore, the values returned by this intrinsic
+might be, or become, negative,
+or numerically less than previous values,
+during a single run of the compiled program.
+
 Some non-GNU implementations of Fortran provide this intrinsic as
 only a function, not as a subroutine.
 
@@ -4305,6 +4360,16 @@ and the user and system components of this in @samp{@var{TArray}(1)}
 and @samp{@var{TArray}(2)} respectively.
 The functions' value is equal to @samp{@var{TArray}(1) + @var{TArray}(2)}.
 
+@cindex wraparound, timings
+@cindex limits, timings
+On some systems, the underlying timings are represented
+using types with sufficiently small limits that overflows
+(wraparounds) are possible, such as 32-bit types.
+Therefore, the values returned by this intrinsic
+might be, or become, negative,
+or numerically less than previous values,
+during a single run of the compiled program.
+
 For information on other intrinsics with the same name:
 @xref{ETime Intrinsic (subroutine)}.
 
@@ -4375,14 +4440,14 @@ external procedure.
 
 @end ifset
 @ifset familyF2U
-@node Fdate Intrinsic (subroutine)
-@subsubsection Fdate Intrinsic (subroutine)
-@cindex Fdate intrinsic
-@cindex intrinsics, Fdate
+@node FDate Intrinsic (subroutine)
+@subsubsection FDate Intrinsic (subroutine)
+@cindex FDate intrinsic
+@cindex intrinsics, FDate
 
 @noindent
 @example
-CALL Fdate(@var{Date})
+CALL FDate(@var{Date})
 @end example
 
 @noindent
@@ -4403,26 +4468,37 @@ Equivalent to:
 CALL CTIME(@var{Date}, TIME8())
 @end example
 
+@cindex Y10K compliance
+@cindex Year 10000 compliance
+@cindex wraparound, Y10K
+@cindex limits, Y10K
+Programs making use of this intrinsic
+might not be Year 10000 (Y10K) compliant.
+For example, the date might appear,
+to such programs, to wrap around
+(change from a larger value to a smaller one)
+as of the Year 10000.
+
 @xref{CTime Intrinsic (subroutine)}.
 
 Some non-GNU implementations of Fortran provide this intrinsic as
 only a function, not as a subroutine.
 
 For information on other intrinsics with the same name:
-@xref{Fdate Intrinsic (function)}.
+@xref{FDate Intrinsic (function)}.
 
-@node Fdate Intrinsic (function)
-@subsubsection Fdate Intrinsic (function)
-@cindex Fdate intrinsic
-@cindex intrinsics, Fdate
+@node FDate Intrinsic (function)
+@subsubsection FDate Intrinsic (function)
+@cindex FDate intrinsic
+@cindex intrinsics, FDate
 
 @noindent
 @example
-Fdate()
+FDate()
 @end example
 
 @noindent
-Fdate: @code{CHARACTER*(*)} function.
+FDate: @code{CHARACTER*(*)} function.
 
 @noindent
 Intrinsic groups: @code{unix}.
@@ -4438,10 +4514,21 @@ Equivalent to:
 CTIME(TIME8())
 @end example
 
+@cindex Y10K compliance
+@cindex Year 10000 compliance
+@cindex wraparound, Y10K
+@cindex limits, Y10K
+Programs making use of this intrinsic
+might not be Year 10000 (Y10K) compliant.
+For example, the date might appear,
+to such programs, to wrap around
+(change from a larger value to a smaller one)
+as of the Year 10000.
+
 @xref{CTime Intrinsic (function)}.
 
 For information on other intrinsics with the same name:
-@xref{Fdate Intrinsic (subroutine)}.
+@xref{FDate Intrinsic (subroutine)}.
 
 @node FGet Intrinsic (subroutine)
 @subsubsection FGet Intrinsic (subroutine)
@@ -5808,6 +5895,17 @@ of day, month (in the range 1--12), and year in elements 1, 2, and 3,
 respectively.
 The year has four significant digits.
 
+@cindex Y10K compliance
+@cindex Year 10000 compliance
+@cindex wraparound, Y10K
+@cindex limits, Y10K
+Programs making use of this intrinsic
+might not be Year 10000 (Y10K) compliant.
+For example, the date might appear,
+to such programs, to wrap around
+(change from a larger value to a smaller one)
+as of the Year 10000.
+
 For information on other intrinsics with the same name:
 @xref{IDate Intrinsic (VXT)}.
 
@@ -5843,7 +5941,20 @@ The month (in the range 1--12) is returned in @var{M},
 the day (in the range 1--7) in @var{D},
 and the year in @var{Y} (in the range 0--99).
 
+@cindex Y2K compliance
+@cindex Year 2000 compliance
+@cindex wraparound, Y2K
+@cindex limits, Y2K
 This intrinsic is not recommended, due to the year 2000 approaching.
+Therefore, programs making use of this intrinsic
+might not be Year 2000 (Y2K) compliant.
+For example, the date might appear,
+to such programs, to wrap around
+(change from a larger value to a smaller one)
+as of the Year 2000.
+
+@xref{IDate Intrinsic (UNIX)}, for information on obtaining more digits
+for the current date.
 
 For information on other intrinsics with the same name:
 @xref{IDate Intrinsic (UNIX)}.
@@ -7479,7 +7590,7 @@ be zero.
 
 @xref{Exp Intrinsic}, for the inverse of this function.
 
-@xref{Log10 Intrinsic}, for the base-10 logarithm function.
+@xref{Log10 Intrinsic}, for the `common' (base-10) logarithm function.
 
 @node Log10 Intrinsic
 @subsubsection Log10 Intrinsic
@@ -7503,9 +7614,8 @@ Intrinsic groups: (standard FORTRAN 77).
 @noindent
 Description:
 
-Returns the natural logarithm of @var{X}, which must
-be greater than zero or, if type @code{COMPLEX}, must not
-be zero.
+Returns the common logarithm (base 10) of @var{X}, which must
+be greater than zero or.
 
 The inverse of this function is @samp{10. ** LOG10(@var{X})}.
 
@@ -7992,9 +8102,16 @@ Description:
 Returns the number of clock ticks since the start of the process.
 Supported on systems with @code{clock(3)} (q.v.).
 
+@cindex wraparound, timings
+@cindex limits, timings
 This intrinsic is not fully portable, such as to systems
 with 32-bit @code{INTEGER} types but supporting times
 wider than 32 bits.
+Therefore, the values returned by this intrinsic
+might be, or become, negative,
+or numerically less than previous values,
+during a single run of the compiled program.
+
 @xref{MClock8 Intrinsic}, for information on a
 similar intrinsic that might be portable to more
 GNU Fortran implementations, though to fewer
@@ -8025,6 +8142,19 @@ Description:
 Returns the number of clock ticks since the start of the process.
 Supported on systems with @code{clock(3)} (q.v.).
 
+@cindex wraparound, timings
+@cindex limits, timings
+@emph{Warning:} this intrinsic does not increase the range
+of the timing values over that returned by @code{clock(3)}.
+On a system with a 32-bit @code{clock(3)},
+@code{MCLOCK8} will return a 32-bit value,
+even though converted to an @samp{INTEGER(KIND=2)} value.
+That means overflows of the 32-bit value can still occur.
+Therefore, the values returned by this intrinsic
+might be, or become, negative,
+or numerically less than previous values,
+during a single run of the compiled program.
+
 No Fortran implementations other than GNU Fortran are
 known to support this intrinsic at the time of this
 writing.
@@ -9129,6 +9259,14 @@ Description:
 Returns the local time in seconds since midnight minus the value
 @var{T}.
 
+@cindex wraparound, timings
+@cindex limits, timings
+This values returned by this intrinsic
+become numerically less than previous values
+(they wrap around) during a single run of the
+compiler program, under normal circumstances
+(such as running through the midnight hour).
+
 @end ifset
 @ifset familyF2U
 @node Second Intrinsic (function)
@@ -9153,6 +9291,16 @@ Description:
 Returns the process's runtime in seconds---the same value as the
 UNIX function @code{etime} returns.
 
+@cindex wraparound, timings
+@cindex limits, timings
+On some systems, the underlying timings are represented
+using types with sufficiently small limits that overflows
+(wraparounds) are possible, such as 32-bit types.
+Therefore, the values returned by this intrinsic
+might be, or become, negative,
+or numerically less than previous values,
+during a single run of the compiled program.
+
 For information on other intrinsics with the same name:
 @xref{Second Intrinsic (subroutine)}.
 
@@ -9178,6 +9326,16 @@ Description:
 Returns the process's runtime in seconds in @var{Seconds}---the same value
 as the UNIX function @code{etime} returns.
 
+@cindex wraparound, timings
+@cindex limits, timings
+On some systems, the underlying timings are represented
+using types with sufficiently small limits that overflows
+(wraparounds) are possible, such as 32-bit types.
+Therefore, the values returned by this intrinsic
+might be, or become, negative,
+or numerically less than previous values,
+during a single run of the compiled program.
+
 This routine is known from Cray Fortran.  @xref{CPU_Time Intrinsic},
 for a standard equivalent.
 
@@ -10072,6 +10230,16 @@ isn't in general.
 in this implementation since it's just the maximum C @code{unsigned
 int} value.
 
+@cindex wraparound, timings
+@cindex limits, timings
+On some systems, the underlying timings are represented
+using types with sufficiently small limits that overflows
+(wraparounds) are possible, such as 32-bit types.
+Therefore, the values returned by this intrinsic
+might be, or become, negative,
+or numerically less than previous values,
+during a single run of the compiled program.
+
 @end ifset
 @ifset familyF77
 @node Tan Intrinsic
@@ -10165,9 +10333,16 @@ Returns the current time encoded as an integer
 This value is suitable for passing to @code{CTIME},
 @code{GMTIME}, and @code{LTIME}.
 
+@cindex wraparound, timings
+@cindex limits, timings
 This intrinsic is not fully portable, such as to systems
 with 32-bit @code{INTEGER} types but supporting times
 wider than 32 bits.
+Therefore, the values returned by this intrinsic
+might be, or become, negative,
+or numerically less than previous values,
+during a single run of the compiled program.
+
 @xref{Time8 Intrinsic}, for information on a
 similar intrinsic that might be portable to more
 GNU Fortran implementations, though to fewer
@@ -10200,7 +10375,18 @@ Description:
 Returns in @var{Time} a character representation of the current time as
 obtained from @code{ctime(3)}.
 
-@xref{Fdate Intrinsic (subroutine)} for an equivalent routine.
+@cindex Y10K compliance
+@cindex Year 10000 compliance
+@cindex wraparound, Y10K
+@cindex limits, Y10K
+Programs making use of this intrinsic
+might not be Year 10000 (Y10K) compliant.
+For example, the date might appear,
+to such programs, to wrap around
+(change from a larger value to a smaller one)
+as of the Year 10000.
+
+@xref{FDate Intrinsic (subroutine)} for an equivalent routine.
 
 For information on other intrinsics with the same name:
 @xref{Time Intrinsic (UNIX)}.
@@ -10231,6 +10417,19 @@ Returns the current time encoded as a long integer
 This value is suitable for passing to @code{CTIME},
 @code{GMTIME}, and @code{LTIME}.
 
+@cindex wraparound, timings
+@cindex limits, timings
+@emph{Warning:} this intrinsic does not increase the range
+of the timing values over that returned by @code{time(3)}.
+On a system with a 32-bit @code{time(3)},
+@code{TIME8} will return a 32-bit value,
+even though converted to an @samp{INTEGER(KIND=2)} value.
+That means overflows of the 32-bit value can still occur.
+Therefore, the values returned by this intrinsic
+might be, or become, negative,
+or numerically less than previous values,
+during a single run of the compiled program.
+
 No Fortran implementations other than GNU Fortran are
 known to support this intrinsic at the time of this
 writing.