I'm not sure how to best explain what I'd like to do, so let me give an example. I used to work in a department that deals with internet security. This department had an "internal" website (only people in the building can get on it) and an "external" website (anyone in the world can get on it --... (1 Reply)
Hi ,
I am getting the following message when log into my unix account in sun solaris (version5.9)server.
-sh: ORACLE_HOME=/apps/oracle/product/10.2.0/client_1: is not an identifier
The ORACLE_HOME is set in .profile file.
Another thing is that SID is also set inside .profile like... (4 Replies)
Hi
I have already gone through this topic on this forum, but still i am getting same problem.
I am using solaris 10. my login shell is /usr/bash
i have got a script as below
/home/gyan> cat 3.cm
#!/usr/bin/ksh
export PROG_NAME=rpaa001
if i run this script as below , it works fine... (3 Replies)
Can someone tell me how to change the first column in a very large 17k line file from a random 10 digit numeric value to a non numeric value. The format of lines in the file is:
1702938475,SNU022,201004
the first 10 numbers always begin with 170 (6 Replies)
Hi Guys...
I am using the following codes in my script:
SID_L=`cat /var/opt/oracle/oratab|grep -v "^#"|cut -f1 -d: -s`
SID_VAR=$SID_L
for SID_RUN in $SID_VAR
do
ORACLE_HOME=`grep ^$SID_RUN /var/opt/oracle/oratab | \
awk -F: '{print $2}'` ;export ORACLE_HOME
export... (2 Replies)
I wonder string constant exists permanently or temporary.
For example,
printf("hello, world");
the function printf access to it is through a pointer. Does it mean storage is allocated for the string constant to exist permanently in memory? :confused: (4 Replies)
Discussion started by: kris26
4 Replies
LEARN ABOUT NETBSD
__builtin_constant_p
__BUILTIN_CONSTANT_P(3) BSD Library Functions Manual __BUILTIN_CONSTANT_P(3)NAME
__builtin_constant_p -- GNU extension to determine compile time constants
SYNOPSIS
int
__builtin_constant_p(value);
DESCRIPTION
The __builtin_constant_p() is a GNU extension for determining whether a value is known to be constant at compile time. The function is
closely related to the concept of ``constant folding'' used by modern optimizing compilers.
If the value is known to be a compile-time constant, a value 1 is returned. If __builtin_constant_p() returns 0, the value is not a compile-
time constant in the sense that gcc(1) was unable to determine whether the value is constant or not.
EXAMPLES
A typical example of the use of __builtin_constant_p() involves a situation where it may be desirable to fold the computation if it involves
a constant, but a function call is needed otherwise. For instance, bswap16(3) is defined in NetBSD as:
#define bswap16(x)
(__builtin_constant_p((x)) ?
__byte_swap_u16_constant(x) : __BYTE_SWAP_U16_VARIABLE(x))
SEE ALSO gcc(1), __builtin_object_size(3), __builtin_return_address(3)CAVEATS
This is a non-standard, compiler-specific extension.
BSD December 19, 2010 BSD