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| -rw-r--r-- | manual/startup.texi | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/manual/startup.texi b/manual/startup.texi index c4f2b2f03f..654a4e8376 100644 --- a/manual/startup.texi +++ b/manual/startup.texi @@ -316,7 +316,8 @@ Non-option argument - @subsection Parsing Long Options To accept GNU-style long options as well as single-character options, -use @code{getopt_long} instead of @code{getopt}. You should make every +use @code{getopt_long} instead of @code{getopt}. This function is +declared in @file{getopt.h}, not @file{unistd.h}. You should make every program accept long options if it uses any options, for this takes little extra work and helps beginners remember how to use the program. @@ -493,7 +494,7 @@ may not be available in other systems. You can deal directly with the underlying representation of environment objects to add more variables to the environment (for example, to communicate with another program you are about to execute; see -@ref{Executing a File}). +@ref{Executing a File}). @comment unistd.h @comment POSIX.1 @@ -564,7 +565,7 @@ use this environment variable, as do many shells and other utilities which are implemented in terms of those functions. The syntax of a path is a sequence of directory names separated by -colons. An empty string instead of a directory name stands for the +colons. An empty string instead of a directory name stands for the current directory (@pxref{Working Directory}). A typical value for this environment variable might be a string like: @@ -670,12 +671,12 @@ a signal that kills the program. @menu * Normal Termination:: If a program calls @code{exit}, a process terminates normally. -* Exit Status:: The @code{exit status} provides information - about why the process terminated. +* Exit Status:: The @code{exit status} provides information + about why the process terminated. * Cleanups on Exit:: A process can run its own cleanup - functions upon normal termination. + functions upon normal termination. * Aborting a Program:: The @code{abort} function causes - abnormal program termination. + abnormal program termination. * Termination Internals:: What happens when a process terminates. @end menu @@ -696,7 +697,7 @@ The @code{exit} function terminates the process with status Normal termination causes the following actions: @enumerate -@item +@item Functions that were registered with the @code{atexit} or @code{on_exit} functions are called in the reverse order of their registration. This mechanism allows your application to specify its own ``cleanup'' actions @@ -704,12 +705,12 @@ to be performed at program termination. Typically, this is used to do things like saving program state information in a file, or unlocking locks in shared data bases. -@item +@item All open streams are closed, writing out any buffered output data. See @ref{Closing Streams}. In addition, temporary files opened with the @code{tmpfile} function are removed; see @ref{Temporary Files}. -@item +@item @code{_exit} is called, terminating the program. @xref{Termination Internals}. @end enumerate @@ -801,7 +802,7 @@ called at normal program termination. The @var{function} is called with no arguments. The return value from @code{atexit} is zero on success and nonzero if -the function cannot be registered. +the function cannot be registered. @end deftypefun @comment stdlib.h |