Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

vasprintf(3) [centos man page]

ASPRINTF(3)						     Linux Programmer's Manual						       ASPRINTF(3)

NAME
asprintf, vasprintf - print to allocated string SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */ #include <stdio.h> int asprintf(char **strp, const char *fmt, ...); int vasprintf(char **strp, const char *fmt, va_list ap); DESCRIPTION
The functions asprintf() and vasprintf() are analogs of sprintf(3) and vsprintf(3), except that they allocate a string large enough to hold the output including the terminating null byte (''), and return a pointer to it via the first argument. This pointer should be passed to free(3) to release the allocated storage when it is no longer needed. RETURN VALUE
When successful, these functions return the number of bytes printed, just like sprintf(3). If memory allocation wasn't possible, or some other error occurs, these functions will return -1, and the contents of strp is undefined. CONFORMING TO
These functions are GNU extensions, not in C or POSIX. They are also available under *BSD. The FreeBSD implementation sets strp to NULL on error. SEE ALSO
free(3), malloc(3), printf(3) COLOPHON
This page is part of release 3.53 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/. GNU
2013-06-21 ASPRINTF(3)

Check Out this Related Man Page

ASPRINTF(3)						     Linux Programmer's Manual						       ASPRINTF(3)

NAME
asprintf, vasprintf - print to allocated string SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */ #include <stdio.h> int asprintf(char **strp, const char *fmt, ...); int vasprintf(char **strp, const char *fmt, va_list ap); DESCRIPTION
The functions asprintf() and vasprintf() are analogs of sprintf(3) and vsprintf(3), except that they allocate a string large enough to hold the output including the terminating null byte, and return a pointer to it via the first argument. This pointer should be passed to free(3) to release the allocated storage when it is no longer needed. RETURN VALUE
When successful, these functions return the number of bytes printed, just like sprintf(3). If memory allocation wasn't possible, or some other error occurs, these functions will return -1, and the contents of strp is undefined. CONFORMING TO
These functions are GNU extensions, not in C or POSIX. They are also available under *BSD. The FreeBSD implementation sets strp to NULL on error. SEE ALSO
free(3), malloc(3), printf(3) COLOPHON
This page is part of release 3.44 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/. GNU
2001-12-18 ASPRINTF(3)

6 More Discussions You Might Find Interesting

1. Solaris

Need help in building gcc on solaris.

We are moving from old solaris to new version of solaris. I have copied the gcc compiler installed on old server to new solaris server. But just copying didn't work. So I am trying to build it on the new server. The server version is sailfish@st-kvar02 -> uname -a SunOS st-kvar02 5.10... (7 Replies)
Discussion started by: nalina.hv
7 Replies

2. Solaris

gcc -3.4.6 installation help

Hi, I want to install the gcc-3.4.6 on solaris 9.5 , in order to compile perl 5.8.8 . I have the following packages . gcc-3.4.6.tar ibiconv-1.11-sol9-sparc-local.gz gcc-3.4.6-sol9-sparc-local libiconv-1.11.tar.gz Where can I find the necessary documents or... (4 Replies)
Discussion started by: sonu2die4
4 Replies

3. Solaris

gcc -3.4.6 solaris installation error

Hi , I am installing gcc 3.4.6 on SunOS labcvs001sm 5.9 Generic_117171-07 sun4u sparc SUNW,Ultra-5_10 . The isa info is 'sparcv'. I have the following with me a)gcc-3.4.6.tar b)gcc-3.4.6-sol9-sparc-local c)libiconv-1.11-sol9-sparc-local d) binutils-2.18.tar.gz e)... (8 Replies)
Discussion started by: sonu2die4
8 Replies

4. Programming

Using ANSI color codes in gcc compiled program

I have put some yellow color codes and works well. I call the funstion using print_usage(stderr, 0); I would like to know if there is any way, to store the ansi color codes in variables and then call them inside fprintf. Or have a format followed by the strings I want to output. ... (5 Replies)
Discussion started by: kristinu
5 Replies

5. HP-UX

Compile krb5-appl 1.0.3 on hpux

asprintf.c: In function 'vasprintf': asprintf.c:58: error: 'SIZE_MAX' undeclared (first use in this function) asprintf.c:58: error: (Each undeclared identifier is reported only once asprintf.c:58: error: for each function it appears in.) Someone know how to fix? Thanks (2 Replies)
Discussion started by: Linusolaradm1
2 Replies

6. UNIX for Beginners Questions & Answers

NTP synchronised problem in our Centos 7.6 node

Someone, please help on this issue:- Note : for security reason i didn't mention hostnames and ips. ============================================================================== # ntpstat unsynchronised polling server every 1024 s Ntpstat showing unsynchronised. ... (29 Replies)
Discussion started by: shanmugaraj
29 Replies

Featured Tech Videos