The snprintf function returns the number of characters that would have been written
had n been sufficiently large, not counting the terminating null character, or a neg ative
value if an encoding error occurred. Thus, the null-terminated output has been
completely written if and only if the returned value is nonnegative and less than n.
So you have to check the return code of snprintf to know if it worked correctly.
You should check return codes no matter how stupid it seems. If you use gcc then
or use lint on your code. The only acceptable compile is a completely clean one.
********************************
Following is not the real issue. The issue is with popen.
Plz continue forward with the thread to get a better picture.
********************************
Hi,
I am working on a customised ftp application. In it we have used sprintf to store a UNIX command... (7 Replies)
I'm writing a script to archive data. First, the files are all rsync'd to the archive directory via NFS mounts(I know not the most efficient, but the only choice in this situation), then I use md5sum to validate the transfers. During execution of the script, it will exit for no apparent reason. It... (6 Replies)
Dear all,
I am new to perl script and would need some help for my 1st script. I wrote a script to search sprintf(buf,"%s", sourcestring) and replace with snprintf(buf, sizeof(buf),"%s", sourcestring). As snprintf() requires an extra argument, so it is not a simple search-and-replace. I need to... (1 Reply)
Hi,
anyone knows the perl search-and-replace expression for
strcpy (char * destination, const char * source ); to
strncpy ( char * destination, const char * source, size_t num ); ?
the first and second arguments are the same (destination and source), the difference being that strncpy... (1 Reply)
Hi All,
is there a way or script that i can check my AIX 5.3 OS will restart before i made restart? is there a script that can check all the startup files are ok before restarting. it is because i was stuck last time when i restart my PC because some startup files were missing:o. (2 Replies)
hi all,
i have a situation where i run ssh command from a unix machine to execute few scripts on 2 other unix machines.
my problem is, the scripts that i run will start few commands on the 2 servers and will quit....i am able to quit from the script but i have to give ctrl+c (on the... (10 Replies)
http://ep.yimg.com/ay/iercomputer/ibm-39j5022-ultra320-scsi-adapter-dual-channel-pci-x-fc5736-3.gif
I have bought this controller.
Simple and fast question: I will put on this controller a external LTO tape,which is terminated with a terminator.
I have to put another terminator on PCI-controller... (1 Reply)
Discussion started by: Linusolaradm1
1 Replies
LEARN ABOUT SUSE
gcvt
GCVT(3) Linux Programmer's Manual GCVT(3)NAME
gcvt - convert a floating-point number to a string
SYNOPSIS
#include <stdlib.h>
char *gcvt(double number, size_t ndigit, char *buf);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
gcvt(): _SVID_SOURCE || _XOPEN_SOURCE >= 500
DESCRIPTION
The gcvt() function converts number to a minimal length null-terminated ASCII string and stores the result in buf. It produces ndigit sig-
nificant digits in either printf(3) F format or E format.
RETURN VALUE
The gcvt() function returns the address of the string pointed to by buf.
CONFORMING TO
Marked as LEGACY in POSIX.1-2001. POSIX.1-2008 removes the specification of gcvt(), recommending the use of sprintf(3) instead (though
snprintf(3) may be preferable).
SEE ALSO ecvt(3), fcvt(3), sprintf(3)COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
2009-03-15 GCVT(3)