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Conventions and Feedback

Compiler Command-line Options

Command-line options

--allow_null_this, --no_allow_null_this

--alternative_tokens, --no_alternative_tokens

--anachronisms, --no_anachronisms

--apcs=qualifer...qualifier

--asm_dir=directory_name

--autoinline, --no_autoinline

--brief_diagnostics, --no_brief_diagnostics

--bss_threshold=num

-c

-C

--c90

--code_gen, --no_code_gen

--compatible=name

--compile_all_input, --no_compile_all_input

--create_pch=filename

-Dname[(parm-list)][=def]

--data_reorder, --no_data_reorder

--debug, --no_debug

--debug_macros, --no_debug_macros

--default_definition_visibility=visibility

--default_extension=ext

--dep_name, --no_dep_name

--depend=filename

--depend_dir=directory_name

--depend_format=string

--depend_single_line, --no_depend_single_line

--depend_system_headers, --no_depend_system_header

--depend_target=target

--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

--dollar, --no_dollar

-E

--emit_frame_directives, --no_emit_frame_directive

--errors=filename

--exceptions, --no_exceptions

--exceptions_unwind, --no_exceptions_unwind

--export_all_vtbl, --no_export_all_vtbl

--export_defs_implicitly, --no_export_defs_implici

--extended_initializers, --no_extended_initializer

--feedback=filename

--force_new_nothrow, --no_force_new_nothrow

--fp16_format=format

--friend_injection, --no_friend_injection

-g

--global_reg=reg_name[,reg_name,...]

--guiding_decls, --no_guiding_decls

--hide_all, --no_hide_all

-Idir[,dir,...]

--ignore_missing_headers

--implicit_include, --no_implicit_include

--implicit_include_searches, --no_implicit_include

--implicit_key_function, --no_implicit_key_functio

--implicit_typename, --no_implicit_typename

--import_all_vtbl

--inline, --no_inline

--interface_enums_are_32_bit

-Jdir[,dir,...]

--kandr_include

--library_interface=lib

--library_type=lib

--link_all_input, --no_link_all_input

--list_dir=directory_name

--locale=lang_country

--loose_implicit_cast

--lower_ropi, --no_lower_ropi

--lower_rwpi, --no_lower_rwpi

-M

--message_locale=lang_country[.codepage]

--min_array_alignment=opt

--multibyte_chars, --no_multibyte_chars

--multifile, --no_multifile

--multiply_latency=cycles

--narrow_volatile_bitfields

--nonstd_qualifier_deduction, --no_nonstd_qualifie

--old_specializations, --no_old_specializations

--old_style_preprocessing

--output_dir=directory_name

-P

--parse_templates, --no_parse_templates

--pch_messages, --no_pch_messages

--pch_verbose, --no_pch_verbose

--pending_instantiations=n

--phony_targets

--pointer_alignment=num

--preinclude=filename

--preprocess_assembly

--reassociate_saturation, --no_reassociate_saturat

--reduce_paths, --no_reduce_paths

--relaxed_ref_def, --no_relaxed_ref_def

--remove_unneeded_entities, --no_remove_unneeded_e

--restrict, --no_restrict

--retain=option

--rtti, --no_rtti

--rtti_data, --no_rtti_data

-S

--signed_bitfields, --unsigned_bitfields

--signed_chars, --unsigned_chars

--split_sections

--strict, --no_strict

--strict_warnings

--trigraphs, --no_trigraphs

--type_traits_helpers, --no_type_traits_helpers

--unaligned_access, --no_unaligned_access

--use_frame_pointer

--use_pch=filename

--using_std, --no_using_std

--version_number

--vfe, --no_vfe

--visibility_inlines_hidden

--vla, --no_vla

-W

--wchar, --no_wchar

--whole_program

--wrap_diagnostics, --no_wrap_diagnostics

Language Extensions

Compiler-specific Features

C and C++ Implementation Details

ARMv6 SIMD Instruction Intrinsics

Via File Syntax

Summary Table of GNU Language Extensions

Standard C Implementation Definition

Standard C++ Implementation Definition

C and C++ Compiler Implementation Limits

--c90

ARM Compiler toolchain v4.1 for µVision Compiler Reference

Home > Compiler Command-line Options > Command-line options > --c90

`--c90`

This option enables the compilation of C90 source code.

Usage

This option can also be combined with other source language command-line options. For example, armcc --c90.

Default

This option is implicitly selected for files having a suffix of .c, .ac, or .tc.

Note

If you are migrating from RVCT, be aware that filename extensions .ac and .tc are deprecated in ARM Compiler 4.1 and later.

See also

--c99
--strict, --no_strict
Source language modes
Filename suffixes recognized by the compiler in Using the Compiler.

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Home > Compiler Command-line Options > Command-line options > --c90