Datasheet

C and C++ Compilers

2.1 About the C and C++ compilers

Wherever possible, the compilers adopt widely used command-line options familiar

both to users of UNIX and to users of Windows/MS-DOS.

The ARM C and C++ compilers compile ANSI C.

The ARM C++ compilers expect C++ that conforms to the ISO/IEC 14822 :1998

International Standard for C++. See Appendix C Standard C++ Implementation

Definition for a detailed description of ARM C++ language support.

The ARM C++ compilers can also compile the subset of standard C++ known as

Embedded C++ (EC++). EC++ is a subset of standard C++ that provides efficient code

for use in embedded systems. The EC++ amendment to the ISO standard is evolving.

The proposed definition is available on the web at

http://www.caravan.net/ec2plus

2.1.1 Compiler variants

All ARM C and C++ compilers accept the same basic command-line options. Unless

stated otherwise, the text in this chapter applies to all compiler types. Where a specific

compiler has added features or restrictions, this is noted in the text. Where an option

applies only to C++, this is also noted in the text.

There are four compiler variants as shown in Table 2-1.

Note

Throughout this chapter, the phrase the ARM compilers refers to armcc, armcpp, tcc,

and tcpp.

Table 2-1 Compiler variants

Compiler name Compiler variant

Source

language

Compiler output

armcc C C 32-bit ARM code

tcc C C 16-bit Thumb code

armcpp C++ C or C++ 32-bit ARM code

tcpp C++ C or C++ 16-bit Thumb code