Datasheet

The C and C++ Libraries
4-98 Copyright © 1999-2001 ARM Limited. All rights reserved. ARM DUI 0067D
The most important features missing from this release are described in Table 4-21.
stdlib.h abort() , abs() , atexit() , atof() , atoi() , atol() , bsearch() , calloc() , div() ,
exit() , free() , getenv() , labs() , ldiv() , malloc() , mblen() , qsort() , rand() ,
realloc() , srand() , strtod() , strtol() , strtoul() , system()
string.h memchr()
, memcmp() , memcpy() , memmove() , memset() , memset() , strcat() ,
strchr() , strcmp() , strcoll() , strcpy() , strcspn() , strerror() , strlen() ,
strncat() , strncmp() , strncpy() , strpbrk() , strrchr() , strspn() , strstr() ,
strtok() , strxfrm()
time.h asctime()
, clock() , ctime() , difftime() , mktime() , strftime() , time()
Table 4-21 Standard C++ library differences
Standard Implementation differences
Wide character Not a separate type.
wchar_t is an implicit typedef for unsigned
short
. Characters are 8-bits wide.
Namespaces Not supported. All top-level items are in the global namespace.
Unimplemented features Support functions for unimplemented language features, class
bad_cast
for example, are unlikely to be functional.
locale The locale message facet is not supported. It fails to open
catalogs at runtime because the ARM C library does not support
catopen and catclose through nl_types.h . One of two locale
definitions can be selected at link time. Other locales can be
created by user-redefinable functions.
Timezone Not supported. The ARM C library does not support it.
Complex default template
arguments
Not supported. Complex default template argument definitions
are where a type parameter has a default instantiation involving
an earlier type parameter. When you request a template that the
standard says is defined with a complex default (such as
instantiating class queue), you must always supply a value for
each template parameter. No defaults are present.
Exceptions Not supported.
typeinfo Limited support. typeinfo is supported in a basic way by the
ARM C++ library additions.
Table 4-20 C++ requirements on the C library (continued)
File Required function in C library