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+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- U S A G E --
+-- --
+-- B o d y --
+-- --
+-- Copyright (C) 1992-2013, Free Software Foundation, Inc. --
+-- --
+-- GNAT is free software; you can redistribute it and/or modify it under --
+-- terms of the GNU General Public License as published by the Free Soft- --
+-- ware Foundation; either version 3, or (at your option) any later ver- --
+-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
+-- for more details. You should have received a copy of the GNU General --
+-- Public License distributed with GNAT; see file COPYING3. If not, go to --
+-- http://www.gnu.org/licenses for a complete copy of the license. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+-- Warning: the output of this usage for warnings is duplicated in the GNAT
+-- reference manual. Be sure to update that if you change the warning list.
+
+with Targparm; use Targparm;
+with Namet; use Namet;
+with Opt; use Opt;
+with Osint; use Osint;
+with Output; use Output;
+
+with System.WCh_Con; use System.WCh_Con;
+
+procedure Usage is
+
+ procedure Write_Switch_Char (Sw : String; Prefix : String := "gnat");
+ -- Output two spaces followed by the switch character minus followed
+ -- Prefix, followed by the string given as the argument, and then enough
+ -- blanks to tab to column 13, i.e. assuming Sw is not longer than 5
+ -- characters, the maximum allowed, Write_Switch_Char will always output
+ -- exactly 12 characters.
+
+ -----------------------
+ -- Write_Switch_Char --
+ -----------------------
+
+ procedure Write_Switch_Char (Sw : String; Prefix : String := "gnat") is
+ begin
+ Write_Str (" -");
+ Write_Str (Prefix);
+ Write_Str (Sw);
+
+ for J in 1 .. 12 - 3 - Prefix'Length - Sw'Length loop
+ Write_Char (' ');
+ end loop;
+ end Write_Switch_Char;
+
+-- Start of processing for Usage
+
+begin
+ Find_Program_Name;
+
+ -- For gnatmake, we are appending this information to the end of
+ -- the normal gnatmake output, so generate appropriate header
+
+ if Name_Len >= 8
+ and then (Name_Buffer (Name_Len - 7 .. Name_Len) = "gnatmake"
+ or else
+ Name_Buffer (Name_Len - 7 .. Name_Len) = "GNATMAKE")
+ then
+ Write_Eol;
+ Write_Line ("Compiler switches (passed to the compiler by gnatmake):");
+
+ else
+ -- Usage line
+
+ Write_Str ("Usage: ");
+ Write_Program_Name;
+ Write_Char (' ');
+ Write_Str ("switches sfile");
+ Write_Eol;
+ Write_Eol;
+
+ -- Line for sfile
+
+ Write_Line (" sfile Source file name");
+ end if;
+
+ Write_Eol;
+
+ -- Common GCC switches not available for JVM, .NET, and AAMP targets
+
+ if VM_Target = No_VM and then not AAMP_On_Target then
+ Write_Switch_Char ("fstack-check ", "");
+ Write_Line ("Generate stack checking code");
+
+ Write_Switch_Char ("fno-inline ", "");
+ Write_Line ("Inhibit all inlining (makes executable smaller)");
+
+ Write_Switch_Char ("fpreserve-control-flow ", "");
+ Write_Line ("Preserve control flow for coverage analysis");
+ end if;
+
+ -- Common switches available to both GCC and JGNAT
+
+ Write_Switch_Char ("g ", "");
+ Write_Line ("Generate debugging information");
+
+ Write_Switch_Char ("Idir ", "");
+ Write_Line ("Specify source files search path");
+
+ Write_Switch_Char ("I- ", "");
+ Write_Line ("Do not look for sources in current directory");
+
+ Write_Switch_Char ("O[0123] ", "");
+ Write_Line ("Control the optimization level");
+
+ Write_Eol;
+
+ -- Individual lines for switches. Write_Switch_Char outputs fourteen
+ -- characters, so the remaining message is allowed to be a maximum
+ -- of 65 characters to be comfortable in an 80 character window.
+
+ -- Line for -gnata switch
+
+ Write_Switch_Char ("a");
+ Write_Line ("Assertions enabled. Pragma Assert/Debug to be activated");
+
+ -- Line for -gnatA switch
+
+ Write_Switch_Char ("A");
+ Write_Line ("Avoid processing gnat.adc, if present file will be ignored");
+
+ -- Line for -gnatb switch
+
+ Write_Switch_Char ("b");
+ Write_Line ("Generate brief messages to stderr even if verbose mode set");
+
+ -- Line for -gnatB switch
+
+ Write_Switch_Char ("B");
+ Write_Line ("Assume no bad (invalid) values except in 'Valid attribute");
+
+ -- Line for -gnatc switch
+
+ Write_Switch_Char ("c");
+ Write_Line ("Check syntax and semantics only (no code generation)");
+
+ -- Line for -gnatC switch
+
+ Write_Switch_Char ("C");
+ Write_Line ("Generate CodePeer intermediate format (no code generation)");
+
+ -- Line for -gnatd switch
+
+ Write_Switch_Char ("d?");
+ Write_Line ("Compiler debug option ? ([.]a-z,A-Z,0-9), see debug.adb");
+
+ -- Line for -gnatD switch
+
+ Write_Switch_Char ("D");
+ Write_Line ("Debug expanded generated code (max line length = 72)");
+ Write_Switch_Char ("Dnn");
+ Write_Line ("Debug expanded generated code (max line length = nn)");
+
+ -- No line for -gnatea : internal switch
+
+ -- Line for -gnateA switch
+
+ Write_Switch_Char ("eA");
+ Write_Line ("Aliasing checks on subprogram parameters");
+
+ -- Line for -gnatec switch
+
+ Write_Switch_Char ("ec=?");
+ Write_Line ("Specify configuration pragmas file, e.g. -gnatec=/x/f.adc");
+
+ -- Line for -gnateC switch
+
+ Write_Switch_Char ("eC");
+ Write_Line ("Generate CodePeer messages (ignored without -gnatcC)");
+
+ -- Line for -gnated switch
+
+ Write_Switch_Char ("ed");
+ Write_Line ("Disable synchronization of atomic variables");
+
+ -- Line for -gnateD switch
+
+ Write_Switch_Char ("eD?");
+ Write_Line ("Define or redefine preprocessing symbol, e.g. -gnateDsym=val");
+
+ -- Line for -gnateE switch
+
+ Write_Switch_Char ("eE");
+ Write_Line ("Generate extra information in exception messages");
+
+ -- Line for -gnatef switch
+
+ Write_Switch_Char ("ef");
+ Write_Line ("Full source path in brief error messages");
+
+ -- Line for -gnateF switch
+
+ Write_Switch_Char ("eF");
+ Write_Line ("Check overflow on predefined Float types");
+
+ -- Line for -gnateG switch
+
+ Write_Switch_Char ("eG");
+ Write_Line ("Generate preprocessed source");
+
+ -- Line for -gnatei switch
+
+ Write_Switch_Char ("einn");
+ Write_Line ("Set maximum number of instantiations to nn");
+
+ -- Line for -gnateI switch
+
+ Write_Switch_Char ("eInn");
+ Write_Line ("Index in multi-unit source, e.g. -gnateI2");
+
+ -- Line for -gnatel switch
+
+ Write_Switch_Char ("el");
+ Write_Line ("Turn on info messages on generated Elaborate[_All] pragmas");
+
+ -- Line for -gnateL switch
+
+ Write_Switch_Char ("eL");
+ Write_Line ("Turn off info messages on generated Elaborate[_All] pragmas");
+
+ -- Line for -gnatem switch
+
+ Write_Switch_Char ("em=?");
+ Write_Line ("Specify mapping file, e.g. -gnatem=mapping");
+
+ -- No line for -gnateO=? : internal switch
+
+ -- Line for -gnatep switch
+
+ Write_Switch_Char ("ep=?");
+ Write_Line ("Specify preprocessing data file, e.g. -gnatep=prep.data");
+
+ -- Line for -gnateP switch
+
+ Write_Switch_Char ("eP");
+ Write_Line ("Pure/Prelaborate errors generate warnings rather than errors");
+
+ -- No line for -gnates=? : internal switch
+
+ -- Line for -gnateS switch
+
+ Write_Switch_Char ("eS");
+ Write_Line ("Generate SCO (Source Coverage Obligation) information");
+
+ -- Line for -gnatet switch
+
+ Write_Switch_Char ("et=?");
+ Write_Line ("Write target dependent information file ?, e.g. gnatet=tdf");
+
+ -- Line for -gnateT switch
+
+ Write_Switch_Char ("eT=?");
+ Write_Line ("Read target dependent information file ?, e.g. gnateT=tdf");
+
+ -- Line for -gnateu switch
+
+ Write_Switch_Char ("eu");
+ Write_Line ("Ignore unrecognized style/validity/warning switches");
+
+ -- Line for -gnateV switch
+
+ Write_Switch_Char ("eV");
+ Write_Line ("Validity checks on subprogram parameters");
+
+ -- Line for -gnateY switch
+
+ Write_Switch_Char ("eY");
+ Write_Line ("Ignore all Style_Checks pragmas in source");
+
+ -- No line for -gnatez : internal switch
+
+ -- Line for -gnatE switch
+
+ Write_Switch_Char ("E");
+ Write_Line ("Dynamic elaboration checking mode enabled");
+
+ -- Line for -gnatf switch
+
+ Write_Switch_Char ("f");
+ Write_Line ("Full errors. Verbose details, all undefined references");
+
+ -- Line for -gnatF switch
+
+ Write_Switch_Char ("F");
+ Write_Line ("Force all import/export external names to all uppercase");
+
+ -- Line for -gnatg switch
+
+ Write_Switch_Char ("g");
+ Write_Line ("GNAT implementation mode (used for compiling GNAT units)");
+
+ -- Lines for -gnatG switch
+
+ Write_Switch_Char ("G");
+ Write_Line ("Output generated expanded code (max line length = 72)");
+ Write_Switch_Char ("Gnn");
+ Write_Line ("Output generated expanded code (max line length = nn)");
+
+ -- Line for -gnath switch
+
+ Write_Switch_Char ("h");
+ Write_Line ("Output this usage (help) information");
+
+ -- Line for -gnati switch
+
+ Write_Switch_Char ("i?");
+ Write_Line ("Identifier char set (?=1/2/3/4/5/8/9/p/f/n/w)");
+
+ -- Line for -gnatI switch
+
+ Write_Switch_Char ("I");
+ Write_Line ("Ignore all representation clauses");
+
+ -- Line for -gnatj switch
+
+ Write_Switch_Char ("jnn");
+ Write_Line ("Format error and warning messages to fit nn character lines");
+
+ -- Line for -gnatk switch
+
+ Write_Switch_Char ("k");
+ Write_Line ("Limit file names to nn characters (k = krunch)");
+
+ -- Lines for -gnatl switch
+
+ Write_Switch_Char ("l");
+ Write_Line ("Output full source listing with embedded error messages");
+ Write_Switch_Char ("l=f");
+ Write_Line ("Output full source listing to specified file");
+
+ -- Line for -gnatL switch
+
+ Write_Switch_Char ("L");
+ Write_Line ("List corresponding source text in -gnatG or -gnatD output");
+
+ -- Line for -gnatm switch
+
+ Write_Switch_Char ("mnn");
+ Write_Line ("Limit number of detected errors/warnings to nn (1-999999)");
+
+ -- Line for -gnatn switch
+
+ Write_Switch_Char ("n[?]");
+ Write_Line ("Enable pragma Inline (both within and across units, ?=1/2)");
+
+ -- Line for -gnato switch
+
+ Write_Switch_Char ("o");
+ Write_Line ("Enable overflow checking mode to CHECKED (off by default)");
+
+ -- Lines for -gnato? switches
+
+ Write_Switch_Char ("o?");
+ Write_Line
+ ("Enable overflow checks in STRICT/MINIMIZED/ELIMINATED (1/2/3) mode ");
+ Write_Switch_Char ("o??");
+ Write_Line
+ ("Set mode for general/assertion expressions separately");
+
+ -- No line for -gnatO : internal switch
+
+ -- Line for -gnatp switch
+
+ Write_Switch_Char ("p");
+ Write_Line ("Suppress all checks");
+
+ -- Line for -gnatP switch
+
+ Write_Switch_Char ("P");
+ Write_Line ("Generate periodic calls to System.Polling.Poll");
+
+ -- Line for -gnatq switch
+
+ Write_Switch_Char ("q");
+ Write_Line ("Don't quit, try semantics, even if parse errors");
+
+ -- Line for -gnatQ switch
+
+ Write_Switch_Char ("Q");
+ Write_Line ("Don't quit, write ali/tree file even if compile errors");
+
+ -- Line for -gnatr switch
+
+ Write_Switch_Char ("r");
+ Write_Line ("Treat pragma Restrictions as Restriction_Warnings");
+
+ -- Lines for -gnatR switch
+
+ Write_Switch_Char ("R?");
+ Write_Line
+ ("List rep info (?=0/1/2/3/m for none/types/all/variable/mechanisms)");
+ Write_Switch_Char ("R?s");
+ Write_Line ("List rep info to file.rep instead of standard output");
+
+ -- Line for -gnats switch
+
+ Write_Switch_Char ("s");
+ Write_Line ("Syntax check only");
+
+ -- Line for -gnatS switch
+
+ Write_Switch_Char ("S");
+ Write_Line ("Print listing of package Standard");
+
+ -- Line for -gnatt switch
+
+ Write_Switch_Char ("t");
+ Write_Line ("Tree output file to be generated");
+
+ -- Line for -gnatTnn switch
+
+ Write_Switch_Char ("Tnn");
+ Write_Line ("All compiler tables start at nn times usual starting size");
+
+ -- Line for -gnatu switch
+
+ Write_Switch_Char ("u");
+ Write_Line ("List units for this compilation");
+
+ -- Line for -gnatU switch
+
+ Write_Switch_Char ("U");
+ Write_Line ("Enable unique tag for error messages");
+
+ -- Line for -gnatv switch
+
+ Write_Switch_Char ("v");
+ Write_Line ("Verbose mode. Full error output with source lines to stdout");
+
+ -- Lines for -gnatV switch
+
+ Write_Switch_Char ("Vxx");
+ Write_Line
+ ("Enable selected validity checking mode, xx = list of parameters:");
+ Write_Line (" a turn on all validity checking options");
+ Write_Line (" c turn on checking for copies");
+ Write_Line (" C turn off checking for copies");
+ Write_Line (" d turn on default (RM) checking");
+ Write_Line (" D turn off default (RM) checking");
+ Write_Line (" e turn on checking for elementary components");
+ Write_Line (" E turn off checking for elementary components");
+ Write_Line (" f turn on checking for floating-point");
+ Write_Line (" F turn off checking for floating-point");
+ Write_Line (" i turn on checking for in params");
+ Write_Line (" I turn off checking for in params");
+ Write_Line (" m turn on checking for in out params");
+ Write_Line (" M turn off checking for in out params");
+ Write_Line (" o turn on checking for operators/attributes");
+ Write_Line (" O turn off checking for operators/attributes");
+ Write_Line (" p turn on checking for parameters");
+ Write_Line (" P turn off checking for parameters");
+ Write_Line (" r turn on checking for returns");
+ Write_Line (" R turn off checking for returns");
+ Write_Line (" s turn on checking for subscripts");
+ Write_Line (" S turn off checking for subscripts");
+ Write_Line (" t turn on checking for tests");
+ Write_Line (" T turn off checking for tests");
+ Write_Line (" n turn off all validity checks (including RM)");
+
+ -- Lines for -gnatw switch
+
+ Write_Switch_Char ("wxx");
+ Write_Line ("Enable selected warning modes, xx = list of parameters:");
+ Write_Line (" * indicates default setting");
+ Write_Line (" + indicates warning flag included in -gnatwa");
+ Write_Line (" a turn on all info/warnings marked below with +");
+ Write_Line (" A turn off all optional info/warnings");
+ Write_Line (" .a*+ turn on warnings for failing assertion");
+ Write_Line (" .A turn off warnings for failing assertion");
+ Write_Line (" b+ turn on warnings for bad fixed value " &
+ "(not multiple of small)");
+ Write_Line (" B* turn off warnings for bad fixed value " &
+ "(not multiple of small)");
+ Write_Line (" .b*+ turn on warnings for biased representation");
+ Write_Line (" .B turn off warnings for biased representation");
+ Write_Line (" c+ turn on warnings for constant conditional");
+ Write_Line (" C* turn off warnings for constant conditional");
+ Write_Line (" .c+ turn on warnings for unrepped components");
+ Write_Line (" .C* turn off warnings for unrepped components");
+ Write_Line (" d turn on warnings for implicit dereference");
+ Write_Line (" D* turn off warnings for implicit dereference");
+
+ -- Switches -gnatw.d/w.D not available on VMS
+
+ if not OpenVMS_On_Target then
+ Write_Line
+ (" .d turn on tagging of warnings with -gnatw switch");
+ Write_Line
+ (" .D* turn off tagging of warnings with -gnatw switch");
+ end if;
+
+ Write_Line (" e treat all warnings (but not info) as errors");
+ Write_Line (" .e turn on every optional info/warning " &
+ "(no exceptions)");
+ Write_Line (" f+ turn on warnings for unreferenced formal");
+ Write_Line (" F* turn off warnings for unreferenced formal");
+ Write_Line (" g*+ turn on warnings for unrecognized pragma");
+ Write_Line (" G turn off warnings for unrecognized pragma");
+ Write_Line (" h turn on warnings for hiding declarations");
+ Write_Line (" H* turn off warnings for hiding declarations");
+ Write_Line (" .h turn on warnings for holes in records");
+ Write_Line (" .H* turn off warnings for holes in records");
+ Write_Line (" i*+ turn on warnings for implementation unit");
+ Write_Line (" I turn off warnings for implementation unit");
+ Write_Line (" .i*+ turn on warnings for overlapping actuals");
+ Write_Line (" .I turn off warnings for overlapping actuals");
+ Write_Line (" j+ turn on warnings for obsolescent " &
+ "(annex J) feature");
+ Write_Line (" J* turn off warnings for obsolescent " &
+ "(annex J) feature");
+ Write_Line (" k+ turn on warnings on constant variable");
+ Write_Line (" K* turn off warnings on constant variable");
+ Write_Line (" .k turn on warnings for standard redefinition");
+ Write_Line (" .K* turn off warnings for standard redefinition");
+ Write_Line (" l turn on warnings for elaboration problems");
+ Write_Line (" L* turn off warnings for elaboration problems");
+ Write_Line (" .l turn on info messages for inherited aspects");
+ Write_Line (" .L* turn off info messages for inherited aspects");
+ Write_Line (" m+ turn on warnings for variable assigned " &
+ "but not read");
+ Write_Line (" M* turn off warnings for variable assigned " &
+ "but not read");
+ Write_Line (" .m* turn on warnings for suspicious modulus value");
+ Write_Line (" .M turn off warnings for suspicious modulus value");
+ Write_Line (" n* normal warning mode (cancels -gnatws/-gnatwe)");
+ Write_Line (" .n turn on info messages for atomic " &
+ "synchronization");
+ Write_Line (" .N* turn off info messages for atomic " &
+ "synchronization");
+ Write_Line (" o* turn on warnings for address clause overlay");
+ Write_Line (" O turn off warnings for address clause overlay");
+ Write_Line (" .o turn on warnings for out parameters assigned " &
+ "but not read");
+ Write_Line (" .O* turn off warnings for out parameters assigned " &
+ "but not read");
+ Write_Line (" p+ turn on warnings for ineffective pragma " &
+ "Inline in frontend");
+ Write_Line (" P* turn off warnings for ineffective pragma " &
+ "Inline in frontend");
+ Write_Line (" .p+ turn on warnings for suspicious parameter " &
+ "order");
+ Write_Line (" .P* turn off warnings for suspicious parameter " &
+ "order");
+ Write_Line (" q*+ turn on warnings for questionable " &
+ "missing parenthesis");
+ Write_Line (" Q turn off warnings for questionable " &
+ "missing parenthesis");
+ Write_Line (" r+ turn on warnings for redundant construct");
+ Write_Line (" R* turn off warnings for redundant construct");
+ Write_Line (" .r+ turn on warnings for object renaming function");
+ Write_Line (" .R* turn off warnings for object renaming function");
+ Write_Line (" s suppress all info/warnings");
+ Write_Line (" .s turn on warnings for overridden size clause");
+ Write_Line (" .S* turn off warnings for overridden size clause");
+ Write_Line (" t turn on warnings for tracking deleted code");
+ Write_Line (" T* turn off warnings for tracking deleted code");
+ Write_Line (" .t*+ turn on warnings for suspicious contract");
+ Write_Line (" .T turn off warnings for suspicious contract");
+ Write_Line (" u+ turn on warnings for unused entity");
+ Write_Line (" U* turn off warnings for unused entity");
+ Write_Line (" .u turn on warnings for unordered enumeration");
+ Write_Line (" .U* turn off warnings for unordered enumeration");
+ Write_Line (" v*+ turn on warnings for unassigned variable");
+ Write_Line (" V turn off warnings for unassigned variable");
+ Write_Line (" .v*+ turn on info messages for reverse bit order");
+ Write_Line (" .V turn off info messages for reverse bit order");
+ Write_Line (" w*+ turn on warnings for wrong low bound assumption");
+ Write_Line (" W turn off warnings for wrong low bound " &
+ "assumption");
+ Write_Line (" .w turn on warnings on pragma Warnings Off");
+ Write_Line (" .W* turn off warnings on pragma Warnings Off");
+ Write_Line (" x*+ turn on warnings for export/import");
+ Write_Line (" X turn off warnings for export/import");
+ Write_Line (" .x+ turn on warnings for non-local exception");
+ Write_Line (" .X* turn off warnings for non-local exception");
+ Write_Line (" y*+ turn on warnings for Ada compatibility issues");
+ Write_Line (" Y turn off warnings for Ada compatibility issues");
+ Write_Line (" .y turn on info messages for why pkg body needed");
+ Write_Line (" .Y* turn off info messages for why pkg body needed");
+ Write_Line (" z*+ turn on warnings for suspicious " &
+ "unchecked conversion");
+ Write_Line (" Z turn off warnings for suspicious " &
+ "unchecked conversion");
+
+ -- Line for -gnatW switch
+
+ Write_Switch_Char ("W?");
+ Write_Str ("Wide character encoding method (?=");
+
+ for J in WC_Encoding_Method loop
+ Write_Char (WC_Encoding_Letters (J));
+
+ if J = WC_Encoding_Method'Last then
+ Write_Char (')');
+ else
+ Write_Char ('/');
+ end if;
+ end loop;
+
+ Write_Eol;
+
+ -- Line for -gnatx switch
+
+ Write_Switch_Char ("x");
+ Write_Line ("Suppress output of cross-reference information");
+
+ -- Line for -gnatX switch
+
+ Write_Switch_Char ("X");
+ Write_Line ("Language extensions permitted");
+
+ -- Lines for -gnaty switch
+
+ Write_Switch_Char ("y");
+ Write_Line ("Enable default style checks (same as -gnaty3abcefhiklmnprst)");
+ Write_Switch_Char ("yxx");
+ Write_Line ("Enable selected style checks xx = list of parameters:");
+ Write_Line (" 1-9 check indentation");
+ Write_Line (" a check attribute casing");
+ Write_Line (" A check array attribute indexes");
+ Write_Line (" b check no blanks at end of lines");
+ Write_Line (" B check no use of AND/OR for boolean expressions");
+ Write_Line (" c check comment format (two spaces)");
+ Write_Line (" C check comment format (one space)");
+ Write_Line (" d check no DOS line terminators");
+ Write_Line (" e check end/exit labels present");
+ Write_Line (" f check no form feeds/vertical tabs in source");
+ Write_Line (" g check standard GNAT style rules");
+ Write_Line (" h check no horizontal tabs in source");
+ Write_Line (" i check if-then layout");
+ Write_Line (" I check mode in");
+ Write_Line (" k check casing rules for keywords");
+ Write_Line (" l check reference manual layout");
+ Write_Line (" Lnn check max nest level < nn ");
+ Write_Line (" m check line length <= 79 characters");
+ Write_Line (" Mnn check line length <= nn characters");
+ Write_Line (" n check casing of package Standard identifiers");
+ Write_Line (" N turn off all checks");
+ Write_Line (" o check subprogram bodies in alphabetical order");
+ Write_Line (" O check overriding indicators");
+ Write_Line (" p check pragma casing");
+ Write_Line (" r check casing for identifier references");
+ Write_Line (" s check separate subprogram specs present");
+ Write_Line (" S check separate lines after THEN or ELSE");
+ Write_Line (" t check token separation rules");
+ Write_Line (" u check no unnecessary blank lines");
+ Write_Line (" x check extra parentheses around conditionals");
+ Write_Line (" y turn on default style checks");
+ Write_Line (" - subtract (turn off) subsequent checks");
+ Write_Line (" + add (turn on) subsequent checks");
+
+ -- Lines for -gnatyN switch
+
+ Write_Switch_Char ("yN");
+ Write_Line ("Cancel all previously set style checks");
+
+ -- Lines for -gnatzc switch
+
+ Write_Switch_Char ("zc");
+ Write_Line ("Distribution stub generation for caller stubs");
+
+ -- Lines for -gnatzr switch
+
+ Write_Switch_Char ("zr");
+ Write_Line ("Distribution stub generation for receiver stubs");
+
+ -- Line for -gnat83 switch
+
+ Write_Switch_Char ("83");
+ Write_Line ("Ada 83 mode");
+
+ -- Line for -gnat95 switch
+
+ Write_Switch_Char ("95");
+
+ if Ada_Version_Default = Ada_95 then
+ Write_Line ("Ada 95 mode (default)");
+ else
+ Write_Line ("Ada 95 mode");
+ end if;
+
+ -- Line for -gnat2005 switch
+
+ Write_Switch_Char ("2005");
+
+ if Ada_Version_Default = Ada_2005 then
+ Write_Line ("Ada 2005 mode (default)");
+ else
+ Write_Line ("Ada 2005 mode");
+ end if;
+
+ -- Line for -gnat2012 switch
+
+ Write_Switch_Char ("2012");
+
+ if Ada_Version_Default = Ada_2012 then
+ Write_Line ("Ada 2012 mode (default)");
+ else
+ Write_Line ("Ada 2012 mode");
+ end if;
+
+ -- Line for -gnat-p switch
+
+ Write_Switch_Char ("-p");
+ Write_Line ("Cancel effect of previous -gnatp switch");
+
+end Usage;