[GitHub] [incubator-nuttx] Donny9 commented on a change in pull request #2904: unistd/getcwd: enhance getcwd when buf is NULL

[GitBox]

Donny9 commented on a change in pull request #2904:
URL: https://github.com/apache/incubator-nuttx/pull/2904#discussion_r582440816



##########
File path: libs/libc/unistd/lib_getcwd.c
##########
@@ -63,6 +63,12 @@
  *   symbolic links. The 'size' argument is the size in bytes of the
  *   character array pointed to by the 'buf' argument.
  *
+ *   As an extension to the POSIX.1-2001 standard, getcwd() allocates
+ *   the buffer dynamically using malloc if buf is NULL.  In this case,
+ *   the allocated buffer has the length size  unless size is zero, when buf

Review comment:
       done！




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