Perl or Python - Batch Script

[Gamingphreek]

So my project for writing a dynamic memory allocator for school is complete.

As of right now, we are testing to find:
A.) How many free-list
B.) The default MAX_SIZE for each free-list

Is there anyway someone can help me write a perl or python script that can change the '#define' in the .c files appropriately to test each case?

Thanks,
-Kevin (Gamingphreek)

 

[Ken g6]

Sounds like an ugly hack. D: Can you change the #define-d constant to a global variable?

 

[esun]

No need for Perl/Python. Use sed.

sed -i 's/#define blah/#define newblah/' *.c

May need to escape some things, not entirely sure. Anyway, play around with it and it should work pretty easily.

 

[Gamingphreek]

No need for Perl/Python. Use sed.

sed -i 's/#define blah/#define newblah/' *.c

May need to escape some things, not entirely sure. Anyway, play around with it and it should work pretty easily.

Woah! I have never heard of sed. I will look into it though!

But, in order to run the code, then change with sed, then run, etc... I'll need to write a BASH, Perl, or Python script correct?

-Kevin

 

[degibson]

gcc will allow you to pass as command line arguments various stuff to define, too. Try -D'MYVAR="foo"'

its equivalent to:
#define MYVAR "foo"

... except that you can specify it from the command line instead of in the source.

 

[Gamingphreek]

gcc will allow you to pass as command line arguments various stuff to define, too. Try -D'MYVAR="foo"'

its equivalent to:
#define MYVAR "foo"

... except that you can specify it from the command line instead of in the source.

Ahh I knew I had used something in gcc before like that.

I think a simply BASH script with a ton of different values here should give me a good idea of what values provide the best performance.