The Template pack and unpack Types and Values : unpack « System Functions « Perl






  1. Perl
  2. System Functions
  3. unpack

The Template pack and unpack Types and Values

      
Template             Description
a                    An ASCII string (null padded)
A                    An ASCII string (space padded)
b                    A bit string (low-to-high order, like vec)
B                    A bit string (high-to-low order)
c                    A signed char value
C                    An unsigned char value
d                    A double-precision float in the native format
f                    A single-precision float in the native format
h                    A hexadecimal string (low nybble first, to high)
H                    A hexadecimal string (high nybble first)
i                    A signed integer
I                    An unsigned integer
l                    A signed long value
L                    An unsigned long value
n                    A short in "network" (big-endian) order
N                    A long in "network" (big-endian) order
p                    A pointer to a null-terminated string
P                    A pointer to a structure (fixed-length string)
q                    A signed 64-bit value
Q                    An unsigned 64-bit value
s                    A signed short value (16-bit)
S                    An unsigned short value (16-bit)
u                    A uuencoded string
v                    A short in "VAX" (little-endian) order
V                    A long in "VAX" (little-endian) order
w                    A BER compressed unsigned integer in base 128, high bit first
x                    A null byte
X                    Back up a byte
@                    Null fill to absolute position








Related examples in the same category

1.pack and unpack.
2.Pack to hex string and unpack
3.Combine unpack and pack in one statement
4.Using pack and unpack to convert decimal number to binary number back and forth