[incubator-nuttx] branch master updated: libc: Change the return type of strerror from "const char *" to "char *"

[pkarashchenko]

This is an automated email from the ASF dual-hosted git repository.

pkarashchenko pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git


The following commit(s) were added to refs/heads/master by this push:
     new 6b8274f  libc: Change the return type of strerror from "const char *" 
to "char *"
6b8274f is described below

commit 6b8274fbd86b95d09a15c0e967791b76b282d358
Author: Xiang Xiao <xiaoxi...@xiaomi.com>
AuthorDate: Sun Mar 20 17:58:42 2022 +0800

    libc: Change the return type of strerror from "const char *" to "char *"
    
    to follow up the spec here:
    https://pubs.opengroup.org/onlinepubs/9699919799/functions/strerror.html
    
    Signed-off-by: Xiang Xiao <xiaoxi...@xiaomi.com>
---
 include/string.h                | 2 +-
 libs/libc/libc.csv              | 2 +-
 libs/libc/string/lib_strerror.c | 6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/string.h b/include/string.h
index c42bb82..d202d08 100644
--- a/include/string.h
+++ b/include/string.h
@@ -53,7 +53,7 @@ extern "C"
 
 FAR char  *strdup(FAR const char *s);
 FAR char  *strndup(FAR const char *s, size_t size);
-FAR const char *strerror(int);
+FAR char  *strerror(int);
 int        strerror_r(int, FAR char *, size_t);
 size_t     strlen(FAR const char *);
 size_t     strnlen(FAR const char *, size_t);
diff --git a/libs/libc/libc.csv b/libs/libc/libc.csv
index b0236c2..5054e92 100644
--- a/libs/libc/libc.csv
+++ b/libs/libc/libc.csv
@@ -225,7 +225,7 @@
 "strcpy","string.h","","FAR char *","FAR char *","FAR const char *"
 "strcspn","string.h","","size_t","FAR const char *","FAR const char *"
 "strdup","string.h","","FAR char *","FAR const char *"
-"strerror","string.h","","FAR const char *","int"
+"strerror","string.h","","FAR char *","int"
 "strerror_r","string.h","","int","int","FAR char *","size_t"
 "strftime","time.h","","size_t","FAR char *","size_t","FAR const char *","FAR 
const struct tm *"
 "strlen","string.h","","size_t","FAR const char *"
diff --git a/libs/libc/string/lib_strerror.c b/libs/libc/string/lib_strerror.c
index 82625df..bf1ee82 100644
--- a/libs/libc/string/lib_strerror.c
+++ b/libs/libc/string/lib_strerror.c
@@ -38,8 +38,8 @@
 
 struct errno_strmap_s
 {
-  uint8_t     errnum;
-  const char *str;
+  uint8_t   errnum;
+  FAR char *str;
 };
 
 /****************************************************************************
@@ -341,7 +341,7 @@ static const struct errno_strmap_s g_errnomap[] =
  * Name: strerror
  ****************************************************************************/
 
-FAR const char *strerror(int errnum)
+FAR char *strerror(int errnum)
 {
 #ifdef CONFIG_LIBC_STRERROR
   int ndxlow = 0;