Argox PT-10, Руководство по программированию

Страница: 27 / 104

26
Description
：
The __ltoa function converts the long argument
value
into acharacter
string using the argument
radix
as the base of the number system. A
long
integer has 32 bits when expressed in radix 2, so the string can
occupy a maximum of 33 bytes with the terminating null character.
The resulting string is returned in the buffer whose address is given
in the argument
string
. The argument
radix
specifies the base
(between 2 and 36) of the number system in which the string
representation of
value
is expressed. For example, using either 2, 8,
10,or 16 as
radix
, you can convert
value
into its binary, octal,
decimal, or hexadecimal representation, respectively. When
radix
is
10 and the
value
is negative, the converted string will start with a
minus sign.
Returns
：
The __ltoa function returns the pointer to the converted string (i.e., it
returns the argument
string
).
__ultoa
Purpose
：
Use
__ultoa
to convert an unsigned long integer value to a character
string.
Syntax
：
char * __ultoa (unsigned long value, char *string, int radix);
Example call
：
__ultoa(0x20000, string, 10); /* string = “131072” */
Includes
：
#include
“
UserLib.h
＂
Description
：
The
__ultoa
function converts the
unsigned long
argument
value
into
a null-terminated character string using the argument
radix
as the
base of the number system. A
long
integer has 32 bits when
expressed in radix 2, so the string can occupy a maximum of 33 bytes
with the terminating null character. The resulting string is returned by
__ultoa
in the buffer whose address is given in the argument
string
.
The argument
radix
specifies the base (between 2 and 36) of the
number system in which the string representation of
value
is
expressed. For example, using either 2, 8, 10, or 16 as
radix
, you can
convert
value
into its binary, octal, decimal, or hexadecimal
representation, respectively.
Returns
：
The
__ultoa
function returns the pointer to the converted string (i.e.,
it returns the argument
string
).
◆
Searching and Sorting
SearchRowOfLookupFile