diff options
Diffstat (limited to 'manual/startup.texi')
| -rw-r--r-- | manual/startup.texi | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/manual/startup.texi b/manual/startup.texi index 8f4fd23bc9..50649c9197 100644 --- a/manual/startup.texi +++ b/manual/startup.texi @@ -340,7 +340,8 @@ given as the parameter @var{string} is put into the environment. If the user should change the string after the @code{putenv} call this will reflect in automatically in the environment. This also requires that @var{string} is no automatic variable which scope is left before the -variable is removed from the environment. +variable is removed from the environment. The same applies of course to +dynamically allocated variables which are freed later. This function is part of the extended Unix interface. Since it was also available in old SVID libraries you should define either @@ -590,7 +591,7 @@ the privilege to do, such as doing I/O. Programmers don't normally need to be concerned with system calls because there are functions in the GNU C library to do virtually everything that system calls do. These functions work by making system calls themselves. For example, -there is a system call that changes the permissions of a file, but +there is a system call that changes the permissions of a file, but you don't need to know about it because you can just use the GNU C library's @code{chmod} function. @@ -660,7 +661,7 @@ int rc; rc = syscall(SYS_chmod, "/etc/passwd", 0444); -if (rc == -1) +if (rc == -1) fprintf(stderr, "chmod failed, errno = %d\n", errno); @end smallexample |