diff options
Diffstat (limited to 'man3/atexit.3')
| -rw-r--r-- | man3/atexit.3 | 54 |
1 files changed, 27 insertions, 27 deletions
diff --git a/man3/atexit.3 b/man3/atexit.3 index 8122ddc32..4a57ac55a 100644 --- a/man3/atexit.3 +++ b/man3/atexit.3 @@ -11,7 +11,7 @@ .\" Modified 1993-07-24, Rik Faith (faith@cs.unc.edu) .\" Modified 2003-10-25, Walter Harms .\" -.TH atexit 3 2023-02-05 "Linux man-pages 6.03" +.TH atexit 3 2023-07-20 "Linux man-pages 6.05.01" .SH NAME atexit \- register a function to be called at normal process termination .SH LIBRARY @@ -61,37 +61,19 @@ it returns a nonzero value. .SH ATTRIBUTES For an explanation of the terms used in this section, see .BR attributes (7). -.ad l -.nh .TS allbox; lbx lb lb l l l. Interface Attribute Value T{ +.na +.nh .BR atexit () T} Thread safety MT-Safe .TE -.hy -.ad .sp 1 -.SH STANDARDS -POSIX.1-2001, POSIX.1-2008, C99, SVr4, 4.3BSD. -.SH NOTES -Functions registered using -.BR atexit () -(and -.BR on_exit (3)) -are not called if a process terminates abnormally because -of the delivery of a signal. -.PP -If one of the registered functions calls -.BR _exit (2), -then any remaining functions are not invoked, -and the other process termination steps performed by -.BR exit (3) -are not performed. -.PP +.SH VERSIONS POSIX.1 says that the result of calling .\" POSIX.1-2001, POSIX.1-2008 .BR exit (3) @@ -109,6 +91,24 @@ portable programs should not invoke .BR exit (3) inside a function registered using .BR atexit (). +.SH STANDARDS +C11, POSIX.1-2008. +.SH HISTORY +POSIX.1-2001, C89, C99, SVr4, 4.3BSD. +.SH NOTES +Functions registered using +.BR atexit () +(and +.BR on_exit (3)) +are not called if a process terminates abnormally because +of the delivery of a signal. +.PP +If one of the registered functions calls +.BR _exit (2), +then any remaining functions are not invoked, +and the other process termination steps performed by +.BR exit (3) +are not performed. .PP The .BR atexit () @@ -137,28 +137,28 @@ that are called when the shared library is unloaded. #include <stdio.h> #include <stdlib.h> #include <unistd.h> - +\& void bye(void) { printf("That was all, folks\en"); } - +\& int main(void) { long a; int i; - +\& a = sysconf(_SC_ATEXIT_MAX); printf("ATEXIT_MAX = %ld\en", a); - +\& i = atexit(bye); if (i != 0) { fprintf(stderr, "cannot set exit function\en"); exit(EXIT_FAILURE); } - +\& exit(EXIT_SUCCESS); } .EE |