new problem

[pskyboy]

Hey Guys

I have written my own new operator but when i try and compile i get an error:-

new takes type size_t as first parameter

I have got

-ffreestanding -fno-exceptions -fnostdlib -fno-builtin

all set so i don't know why it won't work

cheers
Peter

[whyme_t]

have you defined the typedef size_t?

[pskyboy]

yep, unsigned long int

[whyme_t]

Code: Select all

typedef unsigned long int size_t ;
extern "C" void* operator new(size_t t)
{
    //call to your alloc function
}

This compiles ok for me with these gxx switches

-ffreestanding -nostdlib -fno-builtin -fno-rtti -fno-exceptions

[Tim]

...or you could just define size_t the same way that gcc expects and dispense with all those command-line options:

typedef unsigned int size_t;

[pskyboy]

Cheers it works now

i hadn't assigned size_t properly and so it was throwing up errors.

i had defined it as unsigned which obvioulsy would cause problems

cheers anyway
Peetr

[whyme_t]

...or you could just define size_t the same way that gcc expects and dispense with all those command-line options:

typedef unsigned int size_t;

The command-line options aren't to get that code to compile, but to be able to compile C++ source which will run without run time support.