Hi guys...
Macbook Pro, 13", circa August 2012, OSX 10.7.5, default bash terminal.
I require the capability to convert +32767 to -32768 into signed hex words...
The example piece code below works perfectly except...
Results:-
My question is this:-
Why does the line hex=$(printf "%04X\n" $num) not truncate the hex
string to 4 characters?
I have tried, %04X, %02X and %X along with $num and "$num" but I still have to use the extra code to correct to 4 hex characters.
How can I store and/or print() a number that is larger than 4 294 967 295 in C? is int64_t or u_int64_t what I need ? if, so how can I printf it to stdout? (2 Replies)
hi,
Please help me with the following code to get the difference in values.
struct a{
int b1;
int c1;
char d1;
}
main()
{
unsigned int b=10;
unsigned int c;
c = b - (unsigned int )sizeof(a);
printf("%d",c);
}
Here c returns some junk value. How can i get the... (2 Replies)
... and there was absolutely nothing installed except fedora and ssh. I used yum to install vsftp and httpd, both start and ps shows they're running, and yet I can't connect with either of them. Where on earth or in redhat do I begin looking to unravel this one? I've overseen a server before but... (3 Replies)
Hello everey one,
here i am attempting to compile a c++ project .it's throughing the following errors.
my machine details are as follows:
Linux chmclozr0119 2.6.18-53.el5 #1 SMP Wed Oct 10 16:34:19 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
errors:
=====
Generating... (0 Replies)
Hi All,
I have written the below to add the numbers in a column. Postive numbers are unsigned and negative numbers are signed in the file. After the below cmd I am getting -0.00 , instead of 0.00. Can someone guide me on what I am missing in the cmd.
grep '^L' $FileName| awk -F"|" ' {... (7 Replies)
Hey folks,
not sure whether this or the security board is the right forum. If I failed, please move :)
So here's the problem:
I need to build a Linux environment in which only "signed" processes are allowed to run. When I say signed I don't mean a VeriSign signature like you know it from... (5 Replies)
My question is simple: When should I use a long, int, char, unsigned/signed variables??
When I declare a variable "unsigned;" what did I do it???
Why would I delcare an integer "long" or "short" ( unsigned or signed)??
Any examples of when things like "unsigned", "long", "short" etc...... (6 Replies)
when a date type is considered signed and unsigned is that simple referring to - for signed and positive numbers for unsigned? Further if that is the case would mutiplying and dividing ect where 2 signed numbers, like (-2)*(-2) = 4 result in a unsigned. (3 Replies)
Hi,
I am unable to assign value zero to my variable which is defined as unsigned char.
typedef struct ABCD
{
unsigned char abc;
unsigned char def;
unsigned char ghi;
} ABCD;
typedef ABCD *PABCD;
In my Por*C code, i assign the values using memcpy like below
... (3 Replies)
Discussion started by: gthangav
3 Replies
LEARN ABOUT NETBSD
prop_number_equals
PROP_NUMBER(3) BSD Library Functions Manual PROP_NUMBER(3)NAME
prop_number, prop_number_create_integer, prop_number_create_unsigned_integer, prop_number_copy, prop_number_size, prop_number_unsigned,
prop_number_integer_value, prop_number_unsigned_integer_value, prop_number_equals, prop_number_equals_integer,
prop_number_equals_unsigned_integer -- numeric value property object
LIBRARY
Property Container Object Library (libprop, -lprop)
SYNOPSIS
#include <prop/proplib.h>
prop_number_t
prop_number_create_integer(int64_t val);
prop_number_t
prop_number_create_unsigned_integer(uint64_t val);
prop_number_t
prop_number_copy(prop_number_t number);
int
prop_number_size(prop_number_t number);
bool
prop_number_unsigned(prop_number_t number);
int64_t
prop_number_integer_value(prop_number_t number);
uint64_t
prop_number_unsigned_integer_value(prop_number_t number);
bool
prop_number_equals(prop_number_t num1, prop_number_t num2);
bool
prop_number_equals_integer(prop_number_t number, int64_t val);
bool
prop_number_equals_unsigned_integer(prop_number_t number, uint64_t val);
DESCRIPTION
The prop_number family of functions operate on a numeric value property object type. Values are either signed or unsigned, and promoted to a
64-bit type (int64_t or uint64_t, respectively).
It is possible to compare number objects that differ in sign. Such comparisons first test to see if each object is within the valid number
range of the other:
o Signed numbers that are greater than or equal to 0 can be compared to unsigned numbers.
o Unsigned numbers that are less than or equal to the largest signed 64-bit value (INT64_MAX) can be compared to signed numbers.
Number objects have a different externalized representation depending on their sign:
o Signed numbers are externalized in base-10 (decimal).
o Unsigned numbers are externalized in base-16 (hexadecimal).
When numbers are internalized, the sign of the resulting number object (and thus its valid range) is determined by a set of rules evaluated
in the following order:
o If the first character of the number is a '-' then the number is signed.
o If the first two characters of the number are '0x' then the number is unsigned.
o If the number value fits into the range of a signed number then the number is signed.
o In all other cases, the number is unsigned.
prop_number_create_integer(int64_t val)
Create a numeric value object with the signed value val. Returns NULL on failure.
prop_number_create_unsigned_integer(uint64_t val)
Create a numeric value object with the unsigned value val. Returns NULL on failure.
prop_number_copy(prop_number_t number)
Copy a numeric value object. If the supplied object isn't a numeric value, NULL is returned.
prop_number_size(prop_number_t number)
Returns 8, 16, 32, or 64, representing the number of bits required to hold the value of the object. If the supplied object isn't a
numeric value, NULL is returned.
prop_number_unsigned(prop_number_t number)
Returns true if the numeric value object has an unsigned value.
prop_number_integer_value(prop_number_t number)
Returns the signed integer value of the numeric value object. If the supplied object isn't a numeric value, zero is returned. Thus,
it is not possible to distinguish between ``not a prop_number_t'' and ``prop_number_t has a value of 0''.
prop_number_unsigned_integer_value(prop_number_t number)
Returns the unsigned integer value of the numeric value object. If the supplied object isn't a numeric value, zero is returned.
Thus, it is not possible to distinguish between ``not a prop_number_t'' and ``prop_number_t has a value of 0''.
prop_number_equals(prop_number_t num1, prop_number_t num2)
Returns true if the two numeric value objects are equivalent. If at least one of the supplied objects isn't a numeric value, false is
returned.
prop_number_equals_integer(prop_number_t number, int64_t val)
Returns true if the object's value is equivalent to the signed value val. If the supplied object isn't a numerical value or if val
exceeds INT64_MAX, false is returned.
prop_number_equals_unsigned_integer(prop_number_t number, uint64_t val)
Returns true if the object's value is equivalent to the unsigned value val. If the supplied object isn't a numerical value or if val
exceeds INT64_MAX, false is returned.
SEE ALSO prop_array(3), prop_bool(3), prop_data(3), prop_dictionary(3), prop_object(3), prop_string(3), proplib(3)HISTORY
The proplib property container object library first appeared in NetBSD 4.0.
BSD January 21, 2008 BSD