intdoc.texi

gcc-2.95.3 Linux下最常用的C编译器

@c This file is automatically derived from intdoc.c, intdoc.in,
@c ansify.c, intrin.def, and intrin.h.  Edit those files instead.
@menu
@ifset familyF2U
* Abort Intrinsic::     Abort the program.
@end ifset
@ifset familyF77
* Abs Intrinsic::       Absolute value.
@end ifset
@ifset familyF2U
* Access Intrinsic::    Check file accessibility.
@end ifset
@ifset familyASC
* AChar Intrinsic::     ASCII character from code.
@end ifset
@ifset familyF77
* ACos Intrinsic::      Arc cosine.
@end ifset
@ifset familyVXT
* ACosD Intrinsic::     (Reserved for future use.)
@end ifset
@ifset familyF90
* AdjustL Intrinsic::   (Reserved for future use.)
* AdjustR Intrinsic::   (Reserved for future use.)
@end ifset
@ifset familyF77
* AImag Intrinsic::     Convert/extract imaginary part of complex.
@end ifset
@ifset familyVXT
* AIMax0 Intrinsic::    (Reserved for future use.)
* AIMin0 Intrinsic::    (Reserved for future use.)
@end ifset
@ifset familyF77
* AInt Intrinsic::      Truncate to whole number.
@end ifset
@ifset familyVXT
* AJMax0 Intrinsic::    (Reserved for future use.)
* AJMin0 Intrinsic::    (Reserved for future use.)
@end ifset
@ifset familyF2U
* Alarm Intrinsic::     Execute a routine after a given delay.
@end ifset
@ifset familyF90
* All Intrinsic::       (Reserved for future use.)
* Allocated Intrinsic:: (Reserved for future use.)
@end ifset
@ifset familyF77
* ALog Intrinsic::      Natural logarithm (archaic).
* ALog10 Intrinsic::    Common logarithm (archaic).
* AMax0 Intrinsic::     Maximum value (archaic).
* AMax1 Intrinsic::     Maximum value (archaic).
* AMin0 Intrinsic::     Minimum value (archaic).
* AMin1 Intrinsic::     Minimum value (archaic).
* AMod Intrinsic::      Remainder (archaic).
@end ifset
@ifset familyF2C
* And Intrinsic::       Boolean AND.
@end ifset
@ifset familyF77
* ANInt Intrinsic::     Round to nearest whole number.
@end ifset
@ifset familyF90
* Any Intrinsic::       (Reserved for future use.)
@end ifset
@ifset familyF77
* ASin Intrinsic::      Arc sine.
@end ifset
@ifset familyVXT
* ASinD Intrinsic::     (Reserved for future use.)
@end ifset
@ifset familyF90
* Associated Intrinsic:: (Reserved for future use.)
@end ifset
@ifset familyF77
* ATan Intrinsic::      Arc tangent.
* ATan2 Intrinsic::     Arc tangent.
@end ifset
@ifset familyVXT
* ATan2D Intrinsic::    (Reserved for future use.)
* ATanD Intrinsic::     (Reserved for future use.)
@end ifset
@ifset familyF2U
* BesJ0 Intrinsic::     Bessel function.
* BesJ1 Intrinsic::     Bessel function.
* BesJN Intrinsic::     Bessel function.
* BesY0 Intrinsic::     Bessel function.
* BesY1 Intrinsic::     Bessel function.
* BesYN Intrinsic::     Bessel function.
@end ifset
@ifset familyVXT
* BITest Intrinsic::    (Reserved for future use.)
@end ifset
@ifset familyF90
* Bit_Size Intrinsic::  Number of bits in argument's type.
@end ifset
@ifset familyVXT
* BJTest Intrinsic::    (Reserved for future use.)
@end ifset
@ifset familyMIL
* BTest Intrinsic::     Test bit.
@end ifset
@ifset familyF77
* CAbs Intrinsic::      Absolute value (archaic).
* CCos Intrinsic::      Cosine (archaic).
@end ifset
@ifset familyFVZ
* CDAbs Intrinsic::     Absolute value (archaic).
* CDCos Intrinsic::     Cosine (archaic).
* CDExp Intrinsic::     Exponential (archaic).
* CDLog Intrinsic::     Natural logarithm (archaic).
* CDSin Intrinsic::     Sine (archaic).
* CDSqRt Intrinsic::    Square root (archaic).
@end ifset
@ifset familyF90
* Ceiling Intrinsic::   (Reserved for future use.)
@end ifset
@ifset familyF77
* CExp Intrinsic::      Exponential (archaic).
* Char Intrinsic::      Character from code.
@end ifset
@ifset familyF2U
* ChDir Intrinsic (subroutine):: Change directory.
@end ifset
@ifset familyBADU77
* ChDir Intrinsic (function):: Change directory.
@end ifset
@ifset familyF2U
* ChMod Intrinsic (subroutine):: Change file modes.
@end ifset
@ifset familyBADU77
* ChMod Intrinsic (function):: Change file modes.
@end ifset
@ifset familyF77
* CLog Intrinsic::      Natural logarithm (archaic).
* Cmplx Intrinsic::     Construct @code{COMPLEX(KIND=1)} value.
@end ifset
@ifset familyGNU
* Complex Intrinsic::   Build complex value from real and
                         imaginary parts.
@end ifset
@ifset familyF77
* Conjg Intrinsic::     Complex conjugate.
* Cos Intrinsic::       Cosine.
@end ifset
@ifset familyVXT
* CosD Intrinsic::      (Reserved for future use.)
@end ifset
@ifset familyF77
* CosH Intrinsic::      Hyperbolic cosine.
@end ifset
@ifset familyF90
* Count Intrinsic::     (Reserved for future use.)
* CPU_Time Intrinsic::  Get current CPU time.
* CShift Intrinsic::    (Reserved for future use.)
@end ifset
@ifset familyF77
* CSin Intrinsic::      Sine (archaic).
* CSqRt Intrinsic::     Square root (archaic).
@end ifset
@ifset familyF2U
* CTime Intrinsic (subroutine):: Convert time to Day Mon dd hh:mm:ss yyyy.
* CTime Intrinsic (function):: Convert time to Day Mon dd hh:mm:ss yyyy.
@end ifset
@ifset familyF77
* DAbs Intrinsic::      Absolute value (archaic).
* DACos Intrinsic::     Arc cosine (archaic).
@end ifset
@ifset familyVXT
* DACosD Intrinsic::    (Reserved for future use.)
@end ifset
@ifset familyF77
* DASin Intrinsic::     Arc sine (archaic).
@end ifset
@ifset familyVXT
* DASinD Intrinsic::    (Reserved for future use.)
@end ifset
@ifset familyF77
* DATan Intrinsic::     Arc tangent (archaic).
* DATan2 Intrinsic::    Arc tangent (archaic).
@end ifset
@ifset familyVXT
* DATan2D Intrinsic::   (Reserved for future use.)
* DATanD Intrinsic::    (Reserved for future use.)
* Date Intrinsic::      Get current date as dd-Mon-yy.
@end ifset
@ifset familyF90
* Date_and_Time Intrinsic:: Get the current date and time.
@end ifset
@ifset familyF2U
* DbesJ0 Intrinsic::    Bessel function (archaic).
* DbesJ1 Intrinsic::    Bessel function (archaic).
* DbesJN Intrinsic::    Bessel function (archaic).
* DbesY0 Intrinsic::    Bessel function (archaic).
* DbesY1 Intrinsic::    Bessel function (archaic).
* DbesYN Intrinsic::    Bessel function (archaic).
@end ifset
@ifset familyF77
* Dble Intrinsic::      Convert to double precision.
@end ifset
@ifset familyVXT
* DbleQ Intrinsic::     (Reserved for future use.)
@end ifset
@ifset familyFVZ
* DCmplx Intrinsic::    Construct @code{COMPLEX(KIND=2)} value.
* DConjg Intrinsic::    Complex conjugate (archaic).
@end ifset
@ifset familyF77
* DCos Intrinsic::      Cosine (archaic).
@end ifset
@ifset familyVXT
* DCosD Intrinsic::     (Reserved for future use.)
@end ifset
@ifset familyF77
* DCosH Intrinsic::     Hyperbolic cosine (archaic).
* DDiM Intrinsic::      Difference magnitude (archaic).
@end ifset
@ifset familyF2U
* DErF Intrinsic::      Error function (archaic).
* DErFC Intrinsic::     Complementary error function (archaic).
@end ifset
@ifset familyF77
* DExp Intrinsic::      Exponential (archaic).
@end ifset
@ifset familyFVZ
* DFloat Intrinsic::    Conversion (archaic).
@end ifset
@ifset familyVXT
* DFlotI Intrinsic::    (Reserved for future use.)
* DFlotJ Intrinsic::    (Reserved for future use.)
@end ifset
@ifset familyF90
* Digits Intrinsic::    (Reserved for future use.)
@end ifset
@ifset familyF77
* DiM Intrinsic::       Difference magnitude (non-negative subtract).
@end ifset
@ifset familyFVZ
* DImag Intrinsic::     Convert/extract imaginary part of complex (archaic).
@end ifset
@ifset familyF77
* DInt Intrinsic::      Truncate to whole number (archaic).
* DLog Intrinsic::      Natural logarithm (archaic).
* DLog10 Intrinsic::    Common logarithm (archaic).
* DMax1 Intrinsic::     Maximum value (archaic).
* DMin1 Intrinsic::     Minimum value (archaic).
* DMod Intrinsic::      Remainder (archaic).
* DNInt Intrinsic::     Round to nearest whole number (archaic).
@end ifset
@ifset familyF90
* Dot_Product Intrinsic:: (Reserved for future use.)
@end ifset
@ifset familyF77
* DProd Intrinsic::     Double-precision product.
@end ifset
@ifset familyVXT
* DReal Intrinsic::     Convert value to type @code{REAL(KIND=2)}.
@end ifset
@ifset familyF77
* DSign Intrinsic::     Apply sign to magnitude (archaic).
* DSin Intrinsic::      Sine (archaic).
@end ifset
@ifset familyVXT
* DSinD Intrinsic::     (Reserved for future use.)
@end ifset
@ifset familyF77
* DSinH Intrinsic::     Hyperbolic sine (archaic).
* DSqRt Intrinsic::     Square root (archaic).
* DTan Intrinsic::      Tangent (archaic).
@end ifset
@ifset familyVXT
* DTanD Intrinsic::     (Reserved for future use.)
@end ifset
@ifset familyF77
* DTanH Intrinsic::     Hyperbolic tangent (archaic).
@end ifset
@ifset familyF2U
* DTime Intrinsic (subroutine):: Get elapsed time since last time.
@end ifset
@ifset familyBADU77
* DTime Intrinsic (function):: Get elapsed time since last time.
@end ifset
@ifset familyF90
* EOShift Intrinsic::   (Reserved for future use.)
* Epsilon Intrinsic::   (Reserved for future use.)
@end ifset
@ifset familyF2U
* ErF Intrinsic::       Error function.
* ErFC Intrinsic::      Complementary error function.
* ETime Intrinsic (subroutine):: Get elapsed time for process.
* ETime Intrinsic (function):: Get elapsed time for process.
* Exit Intrinsic::      Terminate the program.
@end ifset
@ifset familyF77
* Exp Intrinsic::       Exponential.
@end ifset
@ifset familyF90
* 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.
* FGet Intrinsic (subroutine):: Read a character from unit 5 stream-wise.
@end ifset
@ifset familyBADU77
* FGet Intrinsic (function):: Read a character from unit 5 stream-wise.
@end ifset
@ifset familyF2U
* FGetC Intrinsic (subroutine):: Read a character stream-wise.
@end ifset
@ifset familyBADU77
* FGetC Intrinsic (function):: Read a character stream-wise.
@end ifset
@ifset familyF77
* Float Intrinsic::     Conversion (archaic).
@end ifset
@ifset familyVXT
* FloatI Intrinsic::    (Reserved for future use.)
* FloatJ Intrinsic::    (Reserved for future use.)
@end ifset
@ifset familyF90
* Floor Intrinsic::     (Reserved for future use.)
@end ifset
@ifset familyF2U
* Flush Intrinsic::     Flush buffered output.
* FNum Intrinsic::      Get file descriptor from Fortran unit number.
* FPut Intrinsic (subroutine):: Write a character to unit 6 stream-wise.
@end ifset
@ifset familyBADU77
* FPut Intrinsic (function):: Write a character to unit 6 stream-wise.
@end ifset
@ifset familyF2U
* FPutC Intrinsic (subroutine):: Write a character stream-wise.
@end ifset
@ifset familyBADU77
* FPutC Intrinsic (function):: Write a character stream-wise.
@end ifset
@ifset familyF90
* Fraction Intrinsic::  (Reserved for future use.)
@end ifset
@ifset familyF2U
* FSeek Intrinsic::     Position file (low-level).
* FStat Intrinsic (subroutine):: Get file information.
* FStat Intrinsic (function):: Get file information.
* FTell Intrinsic (subroutine):: Get file position (low-level).
* FTell Intrinsic (function):: Get file position (low-level).
* GError Intrinsic::    Get error message for last error.
* GetArg Intrinsic::    Obtain command-line argument.
* GetCWD Intrinsic (subroutine):: Get current working directory.
* GetCWD Intrinsic (function):: Get current working directory.
* GetEnv Intrinsic::    Get environment variable.
* GetGId Intrinsic::    Get process group id.
* GetLog Intrinsic::    Get login name.
* GetPId Intrinsic::    Get process id.
* GetUId Intrinsic::    Get process user id.
* GMTime Intrinsic::    Convert time to GMT time info.
* HostNm Intrinsic (subroutine):: Get host name.
* HostNm Intrinsic (function):: Get host name.
@end ifset
@ifset familyF90
* Huge Intrinsic::      (Reserved for future use.)
@end ifset
@ifset familyF77
* IAbs Intrinsic::      Absolute value (archaic).
@end ifset
@ifset familyASC
* IAChar Intrinsic::    ASCII code for character.
@end ifset
@ifset familyMIL
* IAnd Intrinsic::      Boolean AND.
@end ifset
@ifset familyF2U
* IArgC Intrinsic::     Obtain count of command-line arguments.
@end ifset
@ifset familyMIL
* IBClr Intrinsic::     Clear a bit.
* IBits Intrinsic::     Extract a bit subfield of a variable.
* IBSet Intrinsic::     Set a bit.
@end ifset
@ifset familyF77
* IChar Intrinsic::     Code for character.
@end ifset
@ifset familyF2U
* IDate Intrinsic (UNIX):: Get local time info.
@end ifset
@ifset familyVXT
* IDate Intrinsic (VXT):: Get local time info (VAX/VMS).
@end ifset
@ifset familyF77
* IDiM Intrinsic::      Difference magnitude (archaic).
* IDInt Intrinsic::     Convert to @code{INTEGER} value truncated
                         to whole number (archaic).
* IDNInt Intrinsic::    Convert to @code{INTEGER} value rounded
                         to nearest whole number (archaic).
@end ifset
@ifset familyMIL
* IEOr Intrinsic::      Boolean XOR.
@end ifset
@ifset familyF2U
* IErrNo Intrinsic::    Get error number for last error.
@end ifset
@ifset familyF77
* IFix Intrinsic::      Conversion (archaic).
@end ifset
@ifset familyVXT
* IIAbs Intrinsic::     (Reserved for future use.)
* IIAnd Intrinsic::     (Reserved for future use.)
* IIBClr Intrinsic::    (Reserved for future use.)
* IIBits Intrinsic::    (Reserved for future use.)
* IIBSet Intrinsic::    (Reserved for future use.)
* IIDiM Intrinsic::     (Reserved for future use.)
* IIDInt Intrinsic::    (Reserved for future use.)
* IIDNnt Intrinsic::    (Reserved for future use.)
* IIEOr Intrinsic::     (Reserved for future use.)
* IIFix Intrinsic::     (Reserved for future use.)
* IInt Intrinsic::      (Reserved for future use.)
* IIOr Intrinsic::      (Reserved for future use.)
* IIQint Intrinsic::    (Reserved for future use.)
* IIQNnt Intrinsic::    (Reserved for future use.)
* IIShftC Intrinsic::   (Reserved for future use.)
* IISign Intrinsic::    (Reserved for future use.)
@end ifset
@ifset familyF2C
* Imag Intrinsic::      Extract imaginary part of complex.
@end ifset
@ifset familyGNU
* ImagPart Intrinsic::  Extract imaginary part of complex.
@end ifset
@ifset familyVXT
* IMax0 Intrinsic::     (Reserved for future use.)
* IMax1 Intrinsic::     (Reserved for future use.)
* IMin0 Intrinsic::     (Reserved for future use.)
* IMin1 Intrinsic::     (Reserved for future use.)
* IMod Intrinsic::      (Reserved for future use.)
@end ifset
@ifset familyF77
* Index Intrinsic::     Locate a CHARACTER substring.
@end ifset
@ifset familyVXT
* INInt Intrinsic::     (Reserved for future use.)
* INot Intrinsic::      (Reserved for future use.)
@end ifset
@ifset familyF77
* Int Intrinsic::       Convert to @code{INTEGER} value truncated
                         to whole number.
@end ifset
@ifset familyGNU
* Int2 Intrinsic::      Convert to @code{INTEGER(KIND=6)} value
                         truncated to whole number.
* Int8 Intrinsic::      Convert to @code{INTEGER(KIND=2)} value
                         truncated to whole number.
@end ifset
@ifset familyMIL
* IOr Intrinsic::       Boolean OR.
@end ifset
@ifset familyF2U
* IRand Intrinsic::     Random number.
* IsaTty Intrinsic::    Is unit connected to a terminal?
@end ifset
@ifset familyMIL
* IShft Intrinsic::     Logical bit shift.
* IShftC Intrinsic::    Circular bit shift.
@end ifset
@ifset familyF77
* ISign Intrinsic::     Apply sign to magnitude (archaic).
@end ifset
@ifset familyF2U
* ITime Intrinsic::     Get local time of day.
@end ifset
@ifset familyVXT
* IZExt Intrinsic::     (Reserved for future use.)
* JIAbs Intrinsic::     (Reserved for future use.)
* JIAnd Intrinsic::     (Reserved for future use.)
* JIBClr Intrinsic::    (Reserved for future use.)
* JIBits Intrinsic::    (Reserved for future use.)
* JIBSet Intrinsic::    (Reserved for future use.)
* JIDiM Intrinsic::     (Reserved for future use.)
* JIDInt Intrinsic::    (Reserved for future use.)
* JIDNnt Intrinsic::    (Reserved for future use.)
* JIEOr Intrinsic::     (Reserved for future use.)
* JIFix Intrinsic::     (Reserved for future use.)
* JInt Intrinsic::      (Reserved for future use.)
* JIOr Intrinsic::      (Reserved for future use.)
* JIQint Intrinsic::    (Reserved for future use.)
* JIQNnt Intrinsic::    (Reserved for future use.)
* JIShft Intrinsic::    (Reserved for future use.)
* JIShftC Intrinsic::   (Reserved for future use.)
* JISign Intrinsic::    (Reserved for future use.)
* JMax0 Intrinsic::     (Reserved for future use.)
* JMax1 Intrinsic::     (Reserved for future use.)
* JMin0 Intrinsic::     (Reserved for future use.)
* JMin1 Intrinsic::     (Reserved for future use.)
* JMod Intrinsic::      (Reserved for future use.)
* JNInt Intrinsic::     (Reserved for future use.)
* JNot Intrinsic::      (Reserved for future use.)
* JZExt Intrinsic::     (Reserved for future use.)
@end ifset
@ifset familyF2U
* Kill Intrinsic (subroutine):: Signal a process.
@end ifset
@ifset familyBADU77
* Kill Intrinsic (function):: Signal a process.
@end ifset
@ifset familyF90
* Kind Intrinsic::      (Reserved for future use.)
* LBound Intrinsic::    (Reserved for future use.)
@end ifset
@ifset familyF77
* Len Intrinsic::       Length of character entity.
@end ifset
@ifset familyF90
* Len_Trim Intrinsic::  Get last non-blank character in string.
@end ifset
@ifset familyF77
* LGe Intrinsic::       Lexically greater than or equal.
* LGt Intrinsic::       Lexically greater than.
@end ifset
@ifset familyF2U
* Link Intrinsic (subroutine):: Make hard link in file system.
@end ifset
@ifset familyBADU77
* Link Intrinsic (function):: Make hard link in file system.
@end ifset
@ifset familyF77
* LLe Intrinsic::       Lexically less than or equal.
* LLt Intrinsic::       Lexically less than.
@end ifset
@ifset familyF2U
* LnBlnk Intrinsic::    Get last non-blank character in string.