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RealView Compiler Reference Guide
Preface Introduction Compiler Command-line Options Command-line options
‑Aopt ‑‑[no_]alternative_tokens ‑‑[no_]anachronisms --apcs=qualifer...qualifier ‑‑arm ‑‑asm ‑‑[no_]autoinline ‑‑bigend ‑‑[no_]brief_diagnostics --bss_threshold=num ‑c ‑C ‑‑c90 ‑‑c99 ‑‑[no_]code_gen --[no_]compile_all_input ‑‑cpp ‑‑create_pch=filename ‑Dname[(parm-list)][=def] ‑‑[no_]data_reorder ‑‑[no_]debug ‑‑[no_]debug_macros ‑‑default_extension=ext ‑‑[no_]dep_name ‑‑depend=filename ‑‑depend_format=string --[no_]depend_system_headers ‑‑device=list ‑‑device=name --device_opt=option ‑‑diag_error=tag[,tag,...] ‑‑diag_remark=tag[,tag,... ] ‑‑diag_style={arm|ide|gnu} ‑‑diag_suppress=tag[,tag,...] --diag_suppress=optimizations ‑‑diag_warning=tag[,tag,...] --diag_warning=optimizations ‑‑[no_]dollar ‑‑dwarf2 ‑‑dwarf3 ‑E ‑‑enum_is_int ‑‑errors=filename ‑‑[no_]exceptions ‑‑[no_]exceptions_unwind ‑‑[no_]export_all_vtbl ‑‑[no_]export_defs_implicitly --[no_]extended_initializers ‑‑feedback=filename --[no_]force_new_nothrow ‑‑forceinline ‑‑fpmode=model ‑‑fpu=list ‑‑fpu=name ‑‑[no_]friend_injection ‑‑gnu ‑‑[no_]guiding_decls ‑‑help ‑‑[no_]hide_all ‑Idir[,dir,...] ‑‑[no_]implicit_include --[no_]implicit_include_searches ‑‑[no_]implicit_typename ‑‑info=totals ‑‑[no_]inline ‑‑interleave ‑Jdir[,dir,...] ‑‑kandr_include ‑Lopt ‑‑library_interface=lib --library_type=lib ‑‑list ‑‑littleend ‑‑locale=lang_country ‑‑loose_implicit_cast ‑‑[no_]lower_ropi ‑‑[no_]lower_rwpi ‑M ‑‑md ‑‑message_locale=lang_country[.codepage] ‑‑min_array_alignment=opt ‑‑[no_]multibyte_chars ‑‑[no_]multifile ‑‑[no_]nonstd_qualifier_deduction ‑o filename ‑Onum ‑‑[no_]old_specializations -‑omf_browse ‑Ospace ‑Otime ‑‑[no_]parse_templates ‑‑pch ‑‑pch_dir=dir ‑‑[no_]pch_messages ‑‑[no_]pch_verbose ‑‑pending_instantiations=n ‑‑pointer_alignment=num --[no_]project=filename ‑‑preinclude=filename --[no_]reduce_paths --reinitialize_workdir ‑‑remarks ‑‑[no_]restrict ‑‑[no_]rtti ‑S ‑‑[un]signed_bitfields ‑‑[un]signed_chars ‑‑show_cmdline ‑‑split_ldm ‑‑split_sections ‑‑[no_]strict ‑‑strict_warnings ‑‑sys_include ‑‑thumb ‑Uname ‑‑[no_]unaligned_access ‑‑use_pch=filename ‑‑[no_]using_std ‑‑[no_]vfe ‑‑via=filename --[no_]vla ‑‑vsn ‑W --wchar16 --wchar32 --workdir=directory ‑‑[no_]wrap_diagnostics Language Extensions Compiler-specific Features C and C++ Implementation Details Via File Syntax Standard C Implementation Definition Standard C++ Implementation Definition C and C++ Compiler Implementation Limits‑Dname[(parm-list)][=def]
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Home > Compiler Command-line Options > Command-line options > ‑D | |||
This option defines the macro name
‑Dname[(parm-list)][=def]
Where:
nameIs the name of the macro to be defined.
parm-listIs an optional list of comma-separated macro parameters. By appending a macro parameter list to the macro name, you can define function-style macros.
The parameter list must be enclosed in parentheses. When specifying multiple parameters, do not include spaces between commas and parameter names in the list.
Note
Parentheses might need escaping on UNIX systems.
=defIs an optional macro definition.
If
=is omitted, the compiler definesdefnameTo include characters recognized as tokens on the command line, enclose the macro definition in double quotes.
Specifying -D has the same effect as placing the text name#define at the head of each source file.name
The compiler defines and undefines macros in the following order:
compiler predefined macros
macros defined explicitly, using
‑Dnamemacros explicitly undefined, using
‑U.name
Specifying the option:
-DMAX(X,Y)="((X > Y) ? X : Y)"
on the command line is equivalent to defining the macro:
#define MAX(X, Y) ((X > Y) ? X : Y)
at the head of each source file.
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