Warning in aCC - HP-UX

[Shan]

Hi All,
When i compile a code in HP-UX using aCC i am getting the following
warning. I am not able to understand this warning. Any help in
understanding the warning is appreciated.

shan 150 aCC -o TransTest TransTest.cpp
Warning 829: "TransTest.cpp", line 22 # Implicit conversion of string
literal to 'char *' is deprecated.
char * clear="clear";
^^^^^^^

The code snippet is:
char * clear = "clear";
system(clear);


Thanks in advance,
Shan

 

[Artie Gold]

Hi All,
When i compile a code in HP-UX using aCC i am getting the following
warning. I am not able to understand this warning. Any help in
understanding the warning is appreciated.

shan 150 aCC -o TransTest TransTest.cpp
Warning 829: "TransTest.cpp", line 22 # Implicit conversion of string
literal to 'char *' is deprecated.
char * clear="clear";
^^^^^^^

make that: const char * clear = "clear";
(In C++ string literals are const.)

The code snippet is:
char * clear = "clear";
system(clear);

HTH,
--ag

 

[Jonathan Mcdougall]

Hi All,
When i compile a code in HP-UX using aCC i am getting the following
warning. I am not able to understand this warning. Any help in
understanding the warning is appreciated.

shan 150 aCC -o TransTest TransTest.cpp
Warning 829: "TransTest.cpp", line 22 # Implicit conversion of string
literal to 'char *' is deprecated.
char * clear="clear";
^^^^^^^

The code snippet is:
char * clear = "clear";
system(clear);

String literals are const. For example,

char *test = "hello";
test[1] = 'a';

is undefined behavior and might crash your program.

const char *test = "hello";
test[1] = 'a'; // does not compile

The reason for which the first example compiles
fine (with warnings) is that there is a deprecated
implicit conversion from char* to const char* to
keep legacy code valid. That conversion should
not be used in new code.


Jonathan

 

[Shan]

Thanks guys...