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ManualsBrandsARM ManualsComputer HardwareVERSION 1.2

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The C and C++ Libraries

The following characteristics, required to be specified in an ANSI-compliant

implementation, are unspecified in the ARM C library:

• the validity of a filename

• whether

remove()

can remove an open file

• the effect of calling the

rename()

function when the new name already exists

• the effect of calling

getenv()

(the default is to return

NULL

, no value available)

• the effect of calling

system()

• the value returned by

clock().

4.13.2 Standard C++ library implementation definition

This section describes the implementation of the C++ libraries. The ARM C++ library

provides all of the library defined in the ISO/IEC 14822 :1998 International Standard

for C++, aside from some limitations described below. For information on

implementation-defined behavior that is defined in the Rogue Wave C++ library, see the

included Rogue Wave HTML documentation. By default, this is installed in the

install_directory\HTML

The standard C++ library is distributed in binary form only.

The requirements that the C++ library places on the C library are described in

Table 4-20.

Table 4-20 C++ requirements on the C library

File Required function in C library

ctype.h isalnum()

isalpha()

iscntrl()

isdigit()

isgraph()

islower()

isprint()

ispunct()

isspace()

isupper()

isxdigit()

tolower()

toupper()

locale.h localeconv()

setlocale()

math.h acos()

asin()

atan2()

atan()

ceil()

cos()

cosh()

exp()

fabs()

floor()

fmod()

frexp()

ldexp()

log10()

log()

modf()

pow()

sin()

sinh()

sqrt()

tan()

tanh()

setjmp.h longjmp()

signal.h raise()

signal()

stdio.h clearerr()

fclose()

feof()

ferror()

fflush()

fgetc()

fgetpos()

fgets()

fopen()

fprintf()

fputc()

fputs()

fread()

freopen()

fscanf()

fseek()

fsetpos()

ftell()

fwrite()

getc()

getchar()

gets()

perror()

printf()

putc()

putchar()

puts()

remove()

rename()

rewind()

scanf()

setbuf()

setvbuf()

sprintf()

sscanf()

tmpfile()

tmpnam()

ungetc()

vfprintf()

vprintf()

vsprintf()