XL Fortran for AIX 8.1

User's Guide

INDEX

Special Characters Numerics A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Special Characters

-# compiler option (1994)
# (1993)
* length specifiers (FORTRAN 77 extension) (2797)
-1 compiler option (1997)
.a files (1771)
-B compiler option (1999)
-b64 linker option (2000)
-bdynamic linker option (2002)
-bhalt linker option (2008)
-bloadmap linker option (2009)
-bmap linker option (1982), (1984)
-bmaxdata and -bmaxstack linker options (2012)
-brename linker option (1981), (1983)
-brtl linker option (2020)
-bshared linker option (2007)
-bstatic linker option (2006)
-c compiler option (2027)
-C compiler option (2024)
.cfg files (1782)
.cshrc file (1616)
-d compiler option (2031)
-D compiler option (2029)
/etc/csh.cshrc and /etc/csh.login files (1618)
/etc/xlf.cfg configuration file (1643), (2034)
.f and .F files (1766)
-F compiler option (2032)
.f90 suffix, compiling files with (1670)
-g compiler option (2037), (2750)
-I compiler option (2039)
#if and other cpp directives (1842)
-k compiler option (2041)
-l compiler option (2043)
-L compiler option (2042)
.lst files (1796)
_main (2896)
.mod files (1783), (1798), (1889), (2285), (2786)
-N compiler option (2045)
-o compiler option (2056)
-O compiler option (2050), (2583)
.o files (1768), (1793)
-O2 compiler option (2052)
-O3 compiler option (2053)
-O4 compiler option (2054)
-O5 compiler option (2055)
_OPENMP C preprocessor macro (1840), (2355)
-p compiler option (2058)
-P compiler option (2057)
-Pk and -Pv preprocessors, ordering information for (2610)
@PROCESS compiler directive (1807)
.profile file (1615)
-Q, -Q!, -Q+, -Q- compiler options (2059)
-Q compiler option (2604)
-q32 compiler option (2481)
-q64 compiler option (2482)
-qalias compiler option (2061), (2591)
-qalign compiler option (2070)
-qarch compiler option (1832), (2080), (2483), (2484), (2485) , (2607)
-qassert compiler option (2103), (2598)
-qattr compiler option (2107), (2764)
-qautodbl compiler option (2109), (2857)
-qcache compiler option (1834), (2120), (2609)
-qcclines compiler option (2121)
-qcharlen compiler option (2124)
-qcheck compiler option (2025), (2126)
-qci compiler option (2128)
-qcompact compiler option (2129)
-qctyplss compiler option (2132)
-qdbg compiler option (2038), (2135)
-qddim compiler option (2137)
-qdirective compiler option (2140)
-qdlines compiler option (2030), (2145)
-qdpc compiler option (2146)
-qdpcl compiler option (2148)
-qescape compiler option (2150)
-qessl compiler option (2152)
-qextchk compiler option (2153)
-qextern compiler option (2155)
-qextname compiler option (2156)
-qfdpr compiler option (2158)
-qfixed compiler option (2159)
-qflag compiler option (2162)
-qfloat compiler option (2165), (2530)
- hsflt suboption (2537)
- hssngl suboption (2536)
- nans suboption (2579)
- nomaf suboption (2531)
- rsqrt suboption (2535)
-qflttrap compiler option (2177), (2543)
-qfree compiler option (2190)
-qfullpath compiler option (2194)
-qhalt compiler option (2197)
-qhot compiler option (2200), (2590), (2597)
-qhsflt compiler option (obsolete) (2202)
-qhssngl compiler option (obsolete) (2204)
-qieee compiler option (2207), (2471)
-qinit compiler option (2213)
-qinitauto compiler option (2216)
-qintlog compiler option (2219)
-qintsize compiler option (2221)
-qipa compiler option (2224), (2586), (2606)
-qkeepparm compiler option (2254)
-qlanglvl compiler option (2256)
-qlargepage compiler option (2264)
-qlibansi linker option (2251)
-qlibessl linker option (2252)
-qlibposix linker option (2253)
-qlist compiler option (2266), (2767)
-qlistopt compiler option (2268), (2756)
-qlm compiler option (2270)
-qlog4 compiler option (2271)
-qmaxmem compiler option (2275)
-qmbcs compiler option (2277)
-qmixed compiler option (2283)
-qmoddir compiler option (2284)
-qnoprint compiler option (2287)
-qnullterm compiler option (2288)
-qobject compiler option (2293)
-qonetrip compiler option (1998), (2298)
-qoptimize compiler option (2051), (2299)
-qpdf compiler option (2301), (2602)
-qphsinfo compiler option (2307)
-qport compiler option (2309)
-qposition compiler option (2312), (2627)
-qqcount compiler option (2316)
-qrealsize compiler option (2317)
-qrecur compiler option (2325)
-qreport compiler option (2328), (2761)
-qsaa compiler option (2333)
-qsave compiler option (2338)
-qsclk compiler option (2340)
-qsigtrap compiler option (2342), (2552)
-qsmallstack compiler option (2341)
-qsmp compiler option (2345)
-qsource compiler option (2368), (2758)
-qspillsize compiler option (2046), (2047), (2371)
-qstrict compiler option (2372), (2584)
-qstrict_induction compiler option (2378)
-qstrictieeemod compiler option (2377)
-qsuffix compiler option (2379)
-qsuppress compiler option (2381)
-qswapomp compiler option (2383)
-qtbtable compiler option (2385)
-qthreaded compiler option (2391)
-qtune compiler option (1833), (2393), (2486), (2487), (2488) , (2608)
-qundef compiler option (2406), (2464)
-qunroll compiler option (2407)
-qunwind compiler option (2409)
-qwarn64 compiler option (2489)
-qxflag=oldtab compiler option (2411)
-qxflag=xalias compiler option (obsolete) (2413) See also -qalias compiler option
-qxlf77 compiler option (2415)
-qxlf90 compiler option (2449)
-qxlines compiler option (2451)
-qxref compiler option (2453), (2765), (2766)
-qzerosize compiler option (2455)
%REF functions (2693)
-S compiler option (2457)
.s files (1770), (1794)
.so files (1778)
-t compiler option (2459)
/tmp directory (1635), (2655) See also TMPDIR environment variable
-u compiler option (2463)
-U compiler option (2461)
/usr/include/fexcp.h (2555)
/usr/include/fp_fort_c.f and fp_fort_t.f (2546)
/usr/include/fpdt.h and fpdc.h (2524)
/usr/lib/lib*.a library files (1774), (1846), (1851), (1856), (1861)
/usr/lpp/xlf/bin/cleanpdf command (2306)
/usr/lpp/xlf/bin/resetpdf command (2305)
/usr/lpp/xlf/bin/xlfentry file (2784)
/usr/lpp/xlf/DOC/README.xlf file (1604)
/usr/lpp/xlf/include_32_d7 directory (1886)
/usr/lpp/xlf/include_32 directory (1887)
/usr/lpp/xlf/include_64 directory (1888)
/usr/lpp/xlf/lib/lib*.a library files (1775), (1847), (1852), (1857), (1862)
-v compiler option (2465)
-V compiler option (2466)
%VAL functions (2694)
-w compiler option (2163), (2468)
-W compiler option (2467)
.XOR. operator (2434)
-yn, -ym, -yp, -yz compiler options (2208), (2470)

Numerics

1501-224, 1501-229, and 1517-011 error messages (2743)
15xx identifiers for XL Fortran messages (2720)
4K suboption of -qalign (2072)
601 suboption of -qarch (2087), (2094)
601 suboption of -qtune (2395)
603 suboption of -qarch (2088), (2095)
603 suboption of -qtune (2396)
604 suboption of -qarch (2089), (2096)
604 suboption of -qtune (2397)
64-bit data types (FORTRAN 77 extension) (2806)
64-bit environment (2477)
64-bit large data type support (2478)
64-bit thread support (2479)

a.out file (1791)
active processors, definition of (2865)
addresses of arguments, saving (2444)
affinity suboption of -qsmp=schedule (2362)
alarm_ service and utility subprogram (2820)
alias, definition of (2864)
ALIAS @PROCESS directive (2062)
ALIGN @PROCESS directive (2071)
alignment of CSECTs and large arrays for data-striped I/O (2077)
allocatable arrays, automatic deallocation with -qxlf90=autodealloc (2447)
ANSI
- checking conformance to the Fortran 90 standard (1586), (1907), (2257)
- checking conformance to the Fortran 95 standard (1587), (1908), (2258)
- definition of (2868)
appendold and appendunknown suboptions of -qposition (2314)
ar command (2771)
archive files (1773)
argument addresses, saving (2442)
argument promotion (integer only) for intrinsic procedures (2431)
arguments
- passing between languages (2678), (2843)
- passing by reference or by value (2690)
- passing null-terminated strings to C functions (2291)
arraypad suboption of -qhot (2599)
arrays
- optimizing array language (2588)
- optimizing assignments (2064)
- passing between languages (2686)
aryovrlp suboption of -qalias (2063), (2594)
as and asopt attributes of configuration file (1666)
as command, passing command-line options to (1811)
asa command (2772)
assembler
- low-level linkage conventions (2699)
- source (.s) files (1769), (1795)
asynchronously, definition of (2866)
ATTR @PROCESS directive (2108)
attribute section in compiler listing (2762)
auto suboption of -qarch (2090)
auto suboption of -qipa (2228)
auto suboption of -qsmp (2349)
auto suboption of -qtune (2403)
AUTODBL @PROCESS directive (2110)
autodealloc suboption of -qxlf90 (2448)
automatic parallelization, definition of (2867)

big data and stack segments (2015)
binary compatibility, POSIX pthreads (1880)
bitwise-identical floating-point results (2529)
blankpad suboption of -qxlf77 (2417)
blocked special files, interaction of XL Fortran I/O with (2643)
bolt attribute of configuration file (1683)
branches, optimizing (2601)
bss storage, alignment of arrays in (2074)
bss storage, definition of (2869)
buffering run-time option
- description (1900)
- using with preconnected files (1901)
buffers, flushing (2651)
busy-wait, definition of (2870)
BYTE data type (FORTRAN 77 extension) (2800)

C++ and Fortran in same program (2675)
C language and interlanguage calls (2667), (2841)
C preprocessor (cpp) (1836)
calling by reference or value (2691)
calling non-Fortran procedures (2666)
carriage control characters, printing files with (2773)
CCLINES @PROCESS (2122)
character constants and typeless constants (2133)
character-count edit descriptor (FORTRAN 77 extension) (2805)
character data, passing between languages (2682)
character special files, interaction of XL Fortran I/O with (2642)
CHARLEN @PROCESS directive (2123)
CHECK @PROCESS directive (2023), (2125)
check_fpscr.f sample file (2574)
chunk, definition of (2871)
CI @PROCESS directive (2127)
cleanpdf command in /usr/lpp/xlf/bin (2304)
clock_ service and utility subprogram (2821)
cnverr run-time option (1902)
code attribute of configuration file (1665)
code generation for different systems (1831)
code optimization (1598), (2580)
column 1 and carriage control characters (2774)
com suboption of -qarch (2081)
command line, specifying options on (1804)
command-line options See compiler options
common blocks, finding sizes of (1986)
COMPACT @PROCESS directive (2130)
compilation order (1760)
compilation unit epilogue section in compiler listing (2769)
compile, definition of (2872)
compiler listings (2752) See also listings
- compiler options for controlling (1973)
compiler options (1959) See also the individual options listed under Special Characters at the start of the index
- deprecated (1989)
- descriptions (1992)
- for compatibility (1975)
- for controlling input to the compiler (1962)
- for controlling listings and messages (1970)
- for controlling the compiler internal operation (1987)
- for debugging and error checking (1966), (1969)
- for floating-point processing (1978)
- for linking (1979)
- for new language extensions (1976)
- for performance optimization (1964)
- obsolete or not recommended (1988)
- scope and precedence (1800)
- section in compiler listing (2755)
- specifying in the source file (1809)
- specifying on the command line (1805)
- specifying the locations of output files (1963)
- summary (1961)
compiler options for 64-bit (2480)
compiling
- cancelling a compilation (1762)
- description of how to compile a program (1721)
- problems (2734)
- SMP programs (1750)
concurrent network licenses (1823)
concurrent nodelock licenses (1822)
conditional branching optimization (2600)
conditional compilation (1838)
conditional vector merge intrinsic functions (FORTRAN 77 extension) (2812)
configuration file (1642), (1781), (2033)
conflicting options
- -C interferes with -qhot (2026)
- @PROCESS overrides command-line setting (1802)
- -qautodbl overrides -qrealsize (2118)
- -qdpc is overridden by -qautodbl and -qrealsize (2323)
- -qflag overrides -qlanglvl and -qsaa (2164)
- -qhalt is overridden by -qnoobject (2296)
- -qhalt overrides -qobject (2295)
- -qhot is overridden by -C (2201)
- -qintsize overrides -qlog4 (2273)
- -qlanglvl is overridden by -qflag (2263)
- -qlog4 is overridden by -qintsize (2274)
- -qnoobject overrides -qhalt (2199)
- -qobject is overridden by -qhalt (2198)
- -qrealsize is overridden by -qautodbl (2119), (2324)
- -qrealsize overrides -qdpc (2322)
- -qsaa is overridden by -qflag (2336)
- command-line overrides configuration file setting (1801)
- specified more than once, last one takes effect (1803)
conformance checking (1592), (2261), (2334)
control and status register for floating point (2567)
conversion errors (1903)
core file (2550), (2563), (2748)
cost model for loop transformations (2596)
could not load program (error message) (2730), (2732)
cpp, cppoptions, and cppsuffix attributes of configuration file (1663)
cpp command (1835)
CRAY functions (FORTRAN 77 extension)
- conditional vector merge intrinsics (2814)
- date and time service and utility functions (2817)
CRAY pointer (FORTRAN 77 extension), XL Fortran equivalent (2810)
cross-reference section in compiler listing (2763)
crt_64 attribute of configuration file (1686)
crt attribute of configuration file (1660)
CSECTS, alignment of (2076)
csh shell (1610)
cshrc, csh.cshrc, and csh.login files (1617)
ctime_ service and utility subprogram (2822)
CTYPLSS @PROCESS directive (2131)
customizing configuration file (including default compiler options) (1644)
CVMGx intrinsic functions (FORTRAN 77 extension) (2813)

data limit (2726)
data object, definition of (2873)
data segment, increasing size of (2013)
data striping (2661)
- -qalign required for improved performance (2075)
- definition of (2876)
data type, definition of (2875)
data types in Fortran, C, and Pascal (2679)
date and time functions (FORTRAN 77 extension) (2815), (2839)
DATE_AND_TIME intrinsic function (2838)
date service and utility subprogram (2823)
DBG @PROCESS directive (2036), (2136)
dbl, dbl4, dbl8, dblpad, dblpad4, dblpad8 suboptions of -qautodbl (2113)
dbx debugger (1594)
dbx support
- sample session (2751)
DDIM @PROCESS directive (2138)
debugger support (1595)
debugging (2704)
- compiler options for (1967)
- using path names of original files (2192)
defaultmsg attribute of configuration file (1684)
defaults
- customizing compiler defaults (1645)
- search paths for include and .mod files (2040)
- search paths for libraries (1628)
delays run-time option (1934)
denormalized number, definition of (2874)
deprecated compiler options (1991)
deps suboption of -qassert (2104)
DIRECTIVE @PROCESS directive (2142)
directives
- NEW (2791)
disassembly listing
- from the -S compiler option (2458)
disk space, running out of (2736)
disk striping See data striping
DLINES @PROCESS directive (2028), (2144)
double-precision values (2498), (2518)
DPC @PROCESS directive (2147)
DPCL @PROCESS directive (2149)
dtime_ service and utility subprogram (2824)
dynamic dimensioning, definition of (2877)
dynamic dimensioning of arrays (2139)
dynamic linking (1867)
dynamic suboption of -qsmp=schedule (2363)

E error severity (2710)
edit descriptors (B, O, Z), differences between F77 and F90 (2440)
edit descriptors (G), difference between F77 and F90 (2426)
editing source files (1715)
emacs text editor (1719)
enable suboption of -qflttrap (2186), (2564)
end-of-file, writing past (2420)
ENTRY statements, compatibility with previous compiler versions (2443)
environment problems (2722)
environment variables
- 64-bit environment
  - OBJECT_MODE (2492)
- compile time (1609)
  - LANG (1619)
  - LIBPATH (1625)
  - NLSPATH (1620)
  - OBJECT_MODE (2491)
  - PDFDIR (1629)
  - TMPDIR (1632)
- definition of (2878)
- OpenMP
  - OMP_DYNAMIC (1941)
  - OMP_NESTED (1943)
  - OMP_NUM_THREADS (1945)
  - OMP_SCHEDULE (1946)
- run-time
  - LIBPATH (1948)
  - PDFDIR (1630)
  - TMPDIR (1949)
  - XLFRTEOPTS (1898)
  - XLSMPOPTS (1924)
- XLFSCRATCH_unit (1636)
- XLFUNIT_unit (1639)
eof, writing past (2421)
epilogue sections in compiler listing (2770)
err_recovery run-time option (1905)
error checking, compiler options for (1968)
error messages (2705)
- 1501-224 (2738)
- 1501-229 (2737)
- 1517-011 (2739)
- compiler options for controlling (1971)
- explanation of format (2719)
- in compiler listing (2759)
erroreof run-time option (1904)
ESCAPE @PROCESS directive (2151)
etime_ service and utility subprogram (2825)
example programs See sample programs
exception handling (1954), (2516)
- for floating point (2179), (2539)
- installing an exception handler (2548)
exclusive or operator (2436)
executable files (1790)
executable program, definition of (2879)
executing a program (1878)
executing the compiler (1724)
exits suboption of -qipa (2226)
explicit interfaces (2695)
EXTCHK @PROCESS directive (2154)
extended-precision values (2521)
extensions to FORTRAN 77, list of common ones (2795)
external names
- definition of (2881)
- in the run-time environment (2855)
EXTNAME @PROCESS directive (2157)

f77 command
- and file positioning (2635)
- description (1725)
- level of Fortran standard compliance (1708), (1748)
f90 command (1758)
f90 suffix (1671)
f95 command (1759)
FAQ (frequently asked questions) list for XL Fortran (2819)
fdate_ service and utility subprogram (2826)
fexcp.h include file (2556)
fhandler.F sample file (2576)
file positioning (2624)
file table section in compiler listing (2768)
files
- editing source (1716)
- I/O formats (2615)
- input (1764)
- names (2617)
- output (1789)
- permissions (2649)
- using suffixes other than .f for source files (1674)
FIPS FORTRAN standard, checking conformance to (1590)
FIXED @PROCESS directive (2160)
FLAG @PROCESS directive (2161)
FLOAT @PROCESS directive (2166)
floating-point
- exception handling (1956)
- exceptions (2178), (2538)
- number, definition of (2880)
- processing (2493)
  - optimizing (2534), (2587)
floating-point status and control register (2565)
fltint suboption of -qfloat (2167)
FLTTRAP @PROCESS directive (2180), (2544)
flttrap_handler.c and flttrap_test.f sample files (2572)
flushing I/O buffers (2650)
fold suboption of -qfloat (2168)
formats, file (2616)
fort.* default file names (2623), (2652)
fort77 command
- description (1726)
- level of Fortran standard compliance (1709)
Fortran
- compiler options for language extensions (1977)
- definition of (2882)
FORTRAN 77 extensions, list of common ones (2794)
Fortran 90
- compiling programs written for (1738)
fp_fort_c.f and fp_fort_t.f include files (2547)
fp_trap libc routine (2545)
fpdt.h and fpdc.h include files (2525)
fpgets and fpsets service and utility subroutines (2569)
fppv and fppk attributes of configuration file (1664)
fpr command (2775)
fpscr register (2568)
fpstat array (2570)
FREE @PROCESS directive (2189)
frequently asked questions (2818)
fsplit command (2776)
fsuffix attribute of configuration file (1669)
full suboption of -qtbtable (2388)
FULLPATH @PROCESS directive (2195)
functions
- definition of (2883)
- linkage convention for calls (2702)
- return values (2696)

G edit descriptor, difference between F77 and F90 (2427)
gcrt_64 attribute of configuration file (1688)
gcrt attribute of configuration file (1662)
gedit77 suboption of -qxlf77 (2425)
generating code for different systems (1830)
get_round_mode procedure (2526)
GETENV intrinsic procedure (2618)
gmon.out file (2781)
gmtime_ service and utility subprogram (2827)
gprof command (2779)
guided suboption of -qsmp=schedule (2364)

HALT @PROCESS directive (2196)
hard limit, definition of (2884)
hardware, compiling for different types of (1828)
header section in compiler listing (2753)
heap storage, increasing size of (2014)
hexint and nohexint suboptions of -qport (2311)
high order transformations, definition of (2885)
Hollerith constant, definition of (2886)
hot attribute of configuration file (1679)
hotlist suboption of -qreport (2330)
HSFLT @PROCESS directive (obsolete) (2203)
hsflt suboption of -qfloat (2169), (2856)
HSSNGL @PROCESS directive (obsolete) (2205)
hssngl suboption of -qfloat (2170)
huge data and stack segments (2017)

I error severity (2716)
i-node (1912), (2887)
I/O See input/output
IBM Distributed Debugger (1597)
idate_ service and utility subprogram (2828)
IEEE @PROCESS directive (2206), (2469)
IEEE arithmetic (2496)
iFOR/LS (1817)
implicitly connected files (2622)
imprecise suboption of -qflttrap (2187)
include_32 attribute of configuration file (1689)
include_64 attribute of configuration file (1685)
inexact suboption of -qflttrap (2185)
infinity values (2500), (2502), (2505), (2509), (2512)
informational message (2715)
INIT @PROCESS directive (2215)
initial file position (2626)
inline suboption of -qipa (2227)
inlining (2060), (2603)
input files (1763)
input/output (2495)
- from two languages in the same program (2674)
- increasing throughput with data striping (2079), (2663)
- redirection (2637)
- run-time behavior (1896)
- when unit is positioned at end-of-file (2424)
- XL Fortran implementation details (2614)
installation problems (2721)
installing the compiler (1602)
intarg suboption of -qxlf77 (2428)
integer arguments of different kinds to intrinsic procedures (2430)
integer POINTER (FORTRAN 77 extension) (2808)
INTENT attribute (2698)
interface errors, detecting (1865)
interlanguage calls (2665), (2692)
- arrays (2685)
- C++ (2676)
- character types (2681)
- corresponding data types (2677)
- input and output (2673)
- low-level linkage conventions (2700)
- pointers (2687)
internal limits for the compiler (2862)
interprocedural analysis (IPA) (2225), (2585)
- definition of (2890)
INTLOG @PROCESS directive (2220)
intptr suboption of -qalias (2067)
intrinsic procedures, definition of (2889)
intrinsic procedures accepting integer arguments of different kinds (2429)
INTSIZE @PROCESS directive (2222)
intxor suboption of -qxlf77 (2433)
invalid suboption of -qflttrap (2184)
invoking a program (1879)
invoking the compiler (1722)
IPA (interprocedural analysis)
- definition of (2888)
ipa attribute of configuration file (1682)
irand routine, naming restriction for (1876)
irtc service and utility subprogram (2829)
ISO
- checking conformance to the Fortran 90 standard (1588), (1909), (2259)
- checking conformance to the Fortran 95 standard (1589), (1910), (2260)
isolated suboption of -qipa (2231)
itercnt suboption of -qassert (2106)
itime_ service and utility subprogram (2830)

jdate service and utility subprogram (2831)

KAP preprocessor, ordering information for (2611)
killed (error message) (2731)
kind type parameters (1710), (2223), (2321)
ksh shell (1611)

L error severity (2713)
LANG environment variable (1622)
LANGLVL @PROCESS directive (2262)
langlvl run-time option (1906)
language-level error (2714)
language support (1583)
large data and stack segments (2016)
large pages (2265)
LC_* national language categories (1624)
ld and ldopt attributes of configuration file (1667)
ld command
- passing command-line options to (1810)
- used for linking 64-bit non-SMP files (1860)
- used for linking 64-bit SMP files (1850)
- used for linking non-SMP files (1855)
- used for linking SMP files (1845)
leadzero suboption of -qxlf77 (2437)
level of XL Fortran, determining (1693)
level suboption of -qipa (2232)
lib*.a library files (1776), (2044)
LIBPATH environment variable (1950), (2733)
- compile time (1626)
libraries (1772), (1779), (1848), (1853), (1858) , (1863)
- default search paths (1627)
- nonshared (2847)
- shared (2853)
libraries attribute of configuration file (1677)
libxlf.a library (1711)
libxlf90.a and libxlf.a libraries (1698)
libxlf90.a library (1712)
libxlf90_r.a library (1691), (1713), (1736), (1883)
libxlf90_t.a library (1692), (1714), (1737)
libxlfpthrds_compat.a library (1885)
libxlsmp.a library (1884)
license management (LM) (1816)
License Use Management (LUM) (1814)
- definition of (2895)
licenses, network and nodelock (1824)
limit command (2725)
limit suboption of -qipa (2229), (2605)
limits internal to the compiler (2863)
link-edit, definition of (2891)
linker, definition of (2892)
linker options (1980)
- -b64 (2001)
- -bdynamic (2003)
- -bmaxdata (2010)
- -bmaxstack (2011)
- -bnortl (2022)
- -brtl (2021)
- -bshared (2004)
- -bstatic (2005)
- -qlibansi (2248)
- -qlibessl (2249)
- -qlibposix (2250)
linking (1844)
- dynamic (1869)
- problems (2745)
- static (1868), (2844)
links, interaction of XL Fortran I/O with (2639)
LIST @PROCESS directive (2267)
list suboption of -qipa (2233), (2246)
listing files (1797)
listing options (1974)
LISTOPT @PROCESS directive (2269)
LM (license management) (1815)
load balancing, definition of (2893)
locale, setting at run time (1894)
LOG4 @PROCESS directive (2272)
logical volumes, I/O operations on (2659)
long variable names (FORTRAN 77 extension) (2801)
loops, optimizing (2589)
lower case (FORTRAN 77 extension) (2802)
lowfreq suboption of -qipa (2234)
lslpp command (1694)
ltime_ service and utility subprogram (2832)
LUM (License Use Management) (1813)
- definition of (2894)

m suboption of -y (2473)
machines, compiling for different types (1829), (2085)
macro, _OPENMP C preprocessor (1841), (2356)
macro expansion (1839)
maf suboption of -qfloat (2171), (2375)
main, restriction on use as a Fortran name (2672)
main program, definition of (2897)
make command (1995), (2777)
makefiles
- configuration file as alternative for default options (1646)
- copying modified configuration files along with (1647)
malloc system routine (2117)
MAXMEM @PROCESS directive (2276)
MBCS @PROCESS directive (2278)
mclock routine, naming restrictions for (1873)
mcrt_64 attribute of configuration file (1687)
mcrt attribute of configuration file (1661)
memory management optimizations (2593)
message suppression (2382)
messages
- 1501-224 error message (2741)
- 1501-229 error message (2740)
- 1517-011 error message (2742)
- catalog files for (1871)
- compiler options for controlling (1972)
- copying message catalogs to another system (1870)
- selecting the language for run-time messages (1892)
messaging
- XL Fortran programs calling MPI library (1658)
migrating (1584)
- from other systems (2788)
- from previous versions of XL Fortran (1697)
minus infinity, representation of (2507), (2514)
minus suboption of -qieee (2210)
missing suboption of -qipa (2235)
MIXED @PROCESS directive (2282), (2460)
mixing integers and logicals (FORTRAN 77 extension) (2803)
mklv command (2664)
mod and nomod suboptions of -qport
mod files (1784), (1799), (1890), (2286), (2787)
module procedures, external names corresponding to (2671)
modules, effect on compilation order (1761)
mon.out file (1787), (2780)
MPI library (1657)
mpxlf_r stanza of configuration file (1650)
mpxlf_r7 stanza of configuration file (1652)
mpxlf stanza of configuration file (1648)
mpxlf90_r stanza of configuration file (1651)
mpxlf90_r7 stanza of configuration file (1653)
mpxlf90 stanza of configuration file (1649)
mpxlf95_r stanza of configuration file (1655)
mpxlf95_r7 stanza of configuration file (1656)
mpxlf95 stanza of configuration file (1654)
multconn run-time option (1911)
multconnio run-time option (1913)
multiple compilations (1819)

n suboption of -y (2472)
name conflicts, avoiding (1872)
namelist run-time option (1914)
naming conventions for external names (2670)
NaN values
- and infinities (2501)
- definition of (2898)
- specifying with -qinitauto compiler option (2217)
nans suboption of -qfloat (2172)
national language support
- at run time (1891)
- compile time environment (1623)
nearest suboption of -qieee (2209)
negative infinity, representation of (2506), (2513)
nested_par suboption of -qsmp (2351)
NetLS (Network Licensing System) (1812)
netscape command (1601)
network file system (NFS)
- using the compiler on a (1606)
Network Install Manager (1607)
network licenses (1826)
NEW compiler directive (2792), (2793)
NFS (1605) See also network file system
NIM (Network Install Manager) (1608)
NLSPATH environment variable
- compile time (1621)
nlwidth run-time option (1915)
noauto suboption of -qsmp (2350)
nodblpad suboption of -qautodbl (2112) See also none suboption instead
nodelock licenses (1825)
nodeps suboption of -qassert (2105)
noinline suboption of -qipa (2236)
none suboption of -qautodbl (2111)
none suboption of -qtbtable (2386)
nonested_par suboption of -qsmp (2352)
nonshared libraries for XL Fortran (2846)
noobject suboption of -qipa (2237)
noomp suboption of -qsmp (2354)
noopt suboption of -qsmp (2358)
norec_locks suboption of -qsmp (2360)
not-a-number, definition of (2899)
null-terminated strings, passing to C functions (2289), (2683)
NULLTERM @PROCESS directive (2292)

OBJECT @PROCESS directive (2294)
object files (1767), (1792)
OBJECT_MODE environment variable (2490)
object suboption of -qipa (2238)
obsolete compiler options (1990)
oldboz suboption of -qxlf77 (2439)
OMP_DYNAMIC environment variable (1940)
OMP_NESTED environment variable (1942)
OMP_NUM_THREADS environment variable (1944)
OMP_SCHEDULE environment variable (1947)
omp suboption of -qsmp (2353)
one-trip DO loop, definition of (2900)
ONETRIP @PROCESS directive (1996), (2297)
online compiler help (1600)
online processors, definition of (2901)
OpenMP environment variables (1939)
opt suboption of -qsmp (2357)
optimization (1599), (2581)
- compiler options for (1965)
- for floating-point arithmetic (2533)
- levels (2582)
OPTIMIZE @PROCESS directive (2049), (2300)
OPTIONAL attribute (2697)
options attribute of configuration file (1668)
options section in compiler listing (2754)
osuffix attribute of configuration file (1675)
output files (1788)
overflow suboption of -qflttrap (2181)

p suboption of -y (2474)
p2sc suboption of -qarch (2091)
p2sc suboption of -qtune (2404)
pad setting, changing for internal and direct-access files (2418)
padding of data types with -qautodbl option (2861)
paging space
- definition of (2902)
- running out of (2735)
parallel execution options (1926)
parameters See arguments
parthds run-time option (1927)
parthreshold run-time option (1936)
partition suboption of -qipa (2239)
Pascal language and interlanguage calls (2668)
path name of source files, preserving with -qfullpath (2191)
PDF (profile-directed feedback), definition of (2904)
PDFDIR environment variable (1631)
pdfname suboption of -qipa (2240), (2247)
performance of floating-point arithmetic (2532)
performance of real operations, speeding up (2115), (2319)
Performance Toolbox (2390)
performance tuning options (1932)
permissions of files (2648)
persistent suboption of -qxlf77 (2441)
PHSINFO @PROCESS directive (2308)
pipes, interaction of XL Fortran I/O with (2638)
platform, compiling for a specific type (2086)
plus infinity, representation of (2504), (2511)
plus suboption of -qieee (2211)
pointee array, definition of (2906)
pointers (Fortran 90) and -qinit compiler option (2214)
pointers (integer POINTER) (FORTRAN 77 extension) (2809)
PORT @PROCESS directive (2310)
portability (2790)
porting to XL Fortran (2789)
POSITION @PROCESS directive (2313), (2628)
position of a file after an OPEN statement (2625)
positive infinity, representation of (2503), (2510)
POSIX pthreads
- API support (1757)
- binary compatibility (1881)
- run-time libraries (1882)
postmortem.f sample file (2575)
POWER, POWER2, POWER3, POWER4, or PowerPC systems (2083)
- compiling programs for (1827)
ppc suboption of -qarch (2082), (2093)
precision of real data types (2114), (2318)
preconnected files (2619)
preprocessing Fortran source with the C preprocessor (1837)
preprocessors, ordering information for (2613)
problem determination (2703)
procedure calls to other languages See subprograms in other languages, calling
procedures, definition of (2905)
prof command (1786), (2778)
profile-directed feedback (PDF), definition of (2903)
profile file (1613), (1614)
profilefreq run-time option (1938)
profiling data files (1785)
proflibs attribute of configuration file (1678)
Program Editor (1720)
promoting integer arguments to intrinsic procedures (2432)
promotion of data types with -qautodbl option (2860)
pseudo-devices, interaction of XL Fortran I/O with (2645)
pteovrlp suboption of -qalias (2069)
pthreads library module (2851)
pure suboption of -qipa (2241)
pwr suboption of -qarch (2097)
pwr suboption of -qtune (2398)
pwr2 suboption of -qarch (2098)
pwr2 suboption of -qtune (2399)
pwr2s suboption of -qarch (2092)
pwr2s suboption of -qtune (2402)
pwr3 suboption of -qarch (2100), (2101)
pwr3 suboption of -qtune (2400)
pwr4 suboption of -qarch (2102)
pwrx suboption of -qarch (2099)
pwrx suboption of -qtune (2401)

Q (character-count) edit descriptor (FORTRAN 77 extension) (2804)
QCOUNT @PROCESS directive (2315)
quiet NaN (2218), (2508)

rand routine, naming restriction for (1874)
random run-time option (1916)
raw logical volumes, I/O operations on (2660)
READ statements past end-of-file (2422)
README.xlf file in /usr/lpp/xlf/DOC (1603)
REAL(16) values (2520)
REAL(4) and REAL(8) values (2499), (2519)
real arithmetic (2494)
REAL data types (2116)
REALSIZE @PROCESS directive (2320)
rec_locks suboption of -qsmp (2359)
record lengths (2647)
RECUR @PROCESS directive (2326)
recursion (2327), (2339)
redirecting input/output (2636)
reference, passing arguments by (2688)
register flushing (2255)
related documentation (1582)
REPORT @PROCESS directive (2329)
resetpdf command in /usr/lpp/xlf/bin (2303)
return code
- from compiler (2717)
- from Fortran programs (2718)
rndsngl suboption of -qfloat (2173)
rounding (2522)
- rounding errors (2527)
- rounding mode (2523), (2528)
rrm suboption of -qfloat (2174), (2374)
rsqrt suboption of -qfloat (2175)
rtc service and utility subprogram (2833)
run time
- exceptions (1953)
- options (1895)
run-time
- libraries (1777), (1859), (1864)
- problems (2746)
- SMP libraries (1849), (1854)
run-time environment
- external names in (2854)
running a program (1877)
running the compiler (1723)
runtime suboption of -qsmp=schedule (2365)

S error severity (2708)
SAA @PROCESS directive (2335)
SAA FORTRAN definition, checking conformance to (1591)
safe suboption of -qipa (2243)
sample programs (2848)
- calling C functions from Fortran (2680)
- floating-point exception handling (2571)
- for SMP (2850)
- notes on using (1581)
SAVE @PROCESS directive (2337)
schedule run-time option (1925)
schedule suboption of -qsmp (2361)
scratch file directory (2656) See also TMPDIR environment variable
scratch_vars run-time option (1638), (1917), (2657)
segmentation fault (2302)
semantics, definition of (2907)
seqthreshold run-time option (1937)
setlocale libc routine (1893)
setrteopts service and utility procedure (1899)
severe error (2709)
sh shell (1612)
shared libraries (2852)
shared object files (1780)
side-effects, definition of (2242)
SIGFPE signal (2542), (2554)
SIGN intrinsic, effect of -qxlf90=signedzero on (2446)
signal handling (1955)
- for floating point (2540)
- installing an exception handler (2549)
signaling NaN (2515), (2578)
signedzero suboption of -qxlf90 (2445)
SIGTRAP signal (1957), (2188), (2541), (2553)
single-precision values (2497), (2517)
sixty-four bit (2476)
sixty-four bit data types (2807)
sleep, definition of (2910)
sleep_ service and utility subprogram (2834)
small suboption of -qtbtable (2387)
SMP
- definition of (2912)
- programs, compiling (1749)
- sample programs (2849)
smplibraries attribute of configuration file (1690)
smplist suboption of -qreport (2331), (2332)
soft limit, definition of (2911)
softeof suboption of -qxlf77 (2419)
SOURCE @PROCESS directive (2369)
source-code conformance checking (1585)
source file options (1808)
source files (1765)
- allowing suffixes other than .f (1673)
- preserving path names for debugging (2193)
- specifying options in (1806)
source-level debugging support (1596)
source section in compiler listing (2757)
space, increasing amount for data and stack (2018)
space problems (2728)
special files, interaction of XL Fortran I/O with (2641)
spill space, definition of (2913)
SPILLSIZE @PROCESS directive (2048), (2370)
spins run-time option (1933)
ssuffix attribute of configuration file (1676)
stack (2701)
- limit (2019), (2727)
stack run-time option (1930), (1931)
standard error, input, and output streams (2620)
stanza, definition of (2908)
star length specifiers (2798), (2799)
static linking (1866), (2845)
static storage, alignment of arrays in (2073)
static suboption of -qsmp=schedule (2366)
status and control register for floating point (2566)
std suboption of -qalias (2068)
stderr, stdin, and stdout streams (2621)
stdexits suboption of -qipa (2244)
storage-associated arrays, performance implications of (2066)
storage limits (2729)
storage relationship between data objects (2858)
STRICT @PROCESS directive (2373)
strictieeemod @PROCESS directive (2376)
strictnmaf suboption of -qfloat (2176)
strings, passing to C functions (2290), (2684)
struct command (2782)
subprogram calls to other languages See subprograms in other languages, calling
subprograms in other languages, calling (2669), (2842)
subroutine, definition of (2914)
suffix, allowing other than .f on source files (1672)
suffixes for source files (2380)
summary of compiler options (1960)
Sun pointer (FORTRAN 77 extension), XL Fortran equivalent (2811)
SWAPOMP @PROCESS directive (2384)
symbolic debugger support (1593)
symbolic links, interaction of XL Fortran I/O with (2640)
Symmetric Multi-Processor, definition of (2915)
synchronously, definition of (2916)
syntax, definition of (2909), (2917)
syntax diagrams and statements (1580)
system problems (2723)

tape files, interaction of XL Fortran I/O with (2644)
target machine, compiling for (2084)
tctl command (2646)
temporary arrays, reducing (2065), (2592)
temporary file directory (1634)
temporary files See /tmp directory
text editors (1717)
thread, definition of (2918)
threshold suboption of -qipa (2230)
threshold suboption of -qsmp (2367)
throughput for I/O, increasing with data striping (2078), (2662)
time_ service and utility subprogram (2835)
time and date functions (FORTRAN 77 extension) (2816), (2840)
time slice, definition of (2919)
timef service and utility subprogram (2836)
times routine, naming restriction for (1875)
TMPDIR environment variable (1951), (1952), (2744)
- compile time (1633)
tokens, definition (1818)
tprof command (2389)
Trace/BPT trap (1958), (2551)
traceback listing (2344), (2562), (2747)
tracking usage of the compiler (1821)
transformation report section in compiler listing (2760)
trigger_constant
- $OMP (2348)
- IBM* (2143)
- IBMP (2346)
- IBMT (2392)
- setting values (2141)
- SMP$ (2347)
trigger constant, definition of (2920)
trigraphs (1843)
tuning performance (2394) See also optimization
typeless constants (FORTRAN 77 extension) (2796)
typeless constants and character constants (2134)
typestmt and notypestmt suboptions of -qport

U error severity (2706)
ulimit command (2724)
UNDEF @PROCESS directive (2405), (2462)
underflow suboption of -qflttrap (2182)
Unicode, definition of (2921)
Unicode data (2279)
unit_vars run-time option (1641), (1919), (2653)
UNIVERSAL setting for locale (2281)
unknown suboption of -qipa (2245)
unrecoverable error (2707)
unresolved references, fixing via -brename option (1985)
unrolling DO LOOPs (2408)
unrolling loops (2595)
unsafe options, definition of (2922)
UNWIND @PROCESS directive (2410)
upgrading to the latest version of XL Fortran (1696)
usage tracking for the compiler (1820)
use attribute of configuration file (1659)
usleep_ service and utility subprogram (2837)
usrthds run-time option (1928), (1929)
UTF-8 encoding for Unicode data (2280)
uwidth run-time option (1921)

value, passing arguments by (2689)
value relationships between data objects (2859)
VAST-2 preprocessor, ordering information for (2612)
vi text editor (1718)

W error severity (2711)
warning error (2712)
what command (1695), (2783)
WRITE statements past end-of-file (2423)

XFLAG(OLDTAB) @PROCESS directive (2412)
XFLAG(XALIAS) @PROCESS directive (obsolete) (2414)
xl_ _trce exception handler (2343)
xl__ieee exception handler (2557)
xl__ieee.F and xl__ieee.c sample files (2573)
xl__sigdump exception handler (2560)
xl__trbk exception handler (2561)
xl__trbk library procedure (2749)
xl__trbk_test.f sample file (2577)
xl__trce exception handler (2559)
xl__trcedump exception handler (2558)
xlf attribute of configuration file (1681)
xlf.cfg configuration file (2035)
xlf command
- and file positioning (2632)
- description (1735)
- level of Fortran standard compliance (1707), (1747)
xlf_r command
- and file positioning (2633)
- description (1733)
- for compiling SMP programs (1755)
- level of Fortran standard compliance (1704), (1741)
xlf_r7 command
- and file positioning (2634)
- description (1734)
- for compiling SMP programs (1756)
- level of Fortran standard compliance (1705), (1745)
XLF77 @PROCESS directive (2416)
XLF90 @PROCESS directive (2450)
xlf90 command
- and file positioning (2629)
- description (1727)
- level of Fortran standard compliance (1706), (1744), (1746)
xlf90_r command
- and file positioning (2630)
- description (1728)
- for compiling SMP programs (1751)
- level of Fortran standard compliance (1699), (1739)
xlf90_r7 command
- and file positioning (2631)
- description (1729)
- for compiling SMP programs (1752)
- level of Fortran standard compliance (1700), (1740)
xlf95 command
- description (1730)
- level of Fortran standard compliance (1703)
xlf95_r command
- description (1731)
- for compiling SMP programs (1753)
- level of Fortran standard compliance (1701), (1742)
xlf95_r7 command
- description (1732)
- for compiling SMP programs (1754)
- level of Fortran standard compliance (1702), (1743)
xlfentry file (2785)
xlfopt attribute of configuration file (1680)
XLFRTEOPTS environment variable (1897)
XLFSCRATCH_unit environment variable (1637), (1918), (2658)
XLFUNIT_unit environment variable (1640), (1920), (2654)
XLINES @PROCESS (2452)
XLSMPOPTS environment variable (1923)
XOR (2435)
XREF @PROCESS directive (2454)
xrf_messages run-time option (1922)

yields run-time option (1935)

z suboption of -y (2475)
zero suboption of -qieee (2212)
zerodivide suboption of -qflttrap (2183)
zeros (leading), in output (2438)
ZEROSIZE @PROCESS directive (2456)

[ Top of Page | Previous Page | Table of Contents | Index ]