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Compiler Command-line Options

--allow_fpreg_for_nonfpdata, --no_allow_fpreg_for_

--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

--code_gen, --no_code_gen

--compatible=name

--compile_all_input, --no_compile_all_input

--conditionalize, --no_conditionalize

--create_pch=filename

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

--data_reorder, --no_data_reorder

--debug, --no_debug

--debug_macros, --no_debug_macros

--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}

--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

--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

-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

--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

--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

--protect_stack, --no_protect_stack

--reassociate_saturation, --no_reassociate_saturat

--reduce_paths, --no_reduce_paths

--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

--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

Standard C Implementation Definition

Standard C++ Implementation Definition

C and C++ Compiler Implementation Limits

--force_new_nothrow, --no_force_new_nothrow

ARM Compiler toolchain v5.02 for µVision Compiler Reference

Home > Compiler Command-line Options > --force_new_nothrow, --no_force_new_nothrow

`--force_new_nothrow`, `--no_force_new_nothrow`

This option controls the behavior of new expressions in C++.

The C++ standard states that only a no throw operator newdeclared with throw() is permitted to return NULL on failure. Any other operator new is never permitted to return NULL and the default operator new throws an exception on failure.

If you use --force_new_nothrow, the compiler treats expressions such as new T(...args...), that use the global ::operator new or ::operator new[], as if they are new (std::nothrow) T(...args...).

--force_new_nothrow also causes any class-specific operator new or any overloaded global operator new to be treated as no throw.

Note

The option --force_new_nothrow is provided only as a migration aid for legacy source code that does not conform to the C++ standard. Its use is not recommended.

Mode

This option is effective only if the source language is C++.

Default

The default is --no_force_new_nothrow.

Example

struct S
{
    void* operator new(std::size_t);
    void* operator new[](std::size_t);
};
void *operator new(std::size_t, int);

With the --force_new_nothrow option in effect, this is treated as:

struct S
{
    void* operator new(std::size_t) throw();
    void* operator new[](std::size_t) throw();
};
void *operator new(std::size_t, int) throw();

See also

Using the ::operator new function.

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