Hello,

I need help in correcting that compiles in older versions of GCC.

Here are the errors I am getting:


atomic/alpha/atomic.h:47: error: expected ',' or '...' before '*' token
atomic/alpha/atomic.h:47: warning: ISO C++ forbids declaration of 'u_int8_t' with no type
atomic/alpha/atomic.h:48: error: expected ',' or '...' before '*' token
atomic/alpha/atomic.h:48: warning: ISO C++ forbids declaration of 'u_int8_t' with no type
atomic/alpha/atomic.h:49: error: expected ',' or '...' before '*' token
atomic/alpha/atomic.h:49: warning: ISO C++ forbids declaration of 'u_int8_t' with no type
atomic/alpha/atomic.h:50: error: expected ',' or '...' before '*' token
atomic/alpha/atomic.h:50: warning: ISO C++ forbids declaration of 'u_int8_t' with no type
atomic/alpha/atomic.h:52: error: expected ',' or '...' before '*' token
atomic/alpha/atomic.h:52: warning: ISO C++ forbids declaration of 'u_int16_t' with no type
atomic/alpha/atomic.h:53: error: expected ',' or '...' before '*' token
atomic/alpha/atomic.h:53: warning: ISO C++ forbids declaration of 'u_int16_t' with no type
atomic/alpha/atomic.h:54: error: expected ',' or '...' before '*' token
atomic/alpha/atomic.h:54: warning: ISO C++ forbids declaration of 'u_int16_t' with no type
atomic/alpha/atomic.h:55: error: expected ',' or '...' before '*' token
atomic/alpha/atomic.h:55: warning: ISO C++ forbids declaration of 'u_int16_t' with no type
atomic/alpha/atomic.h:57: error: expected ',' or '...' before '*' token
atomic/alpha/atomic.h:57: warning: ISO C++ forbids declaration of 'u_int32_t' with no type


Here is the following snippet:



void atomic_set_8(volatile u_int8_t *, u_int8_t);
void atomic_clear_8(volatile u_int8_t *, u_int8_t);
void atomic_add_8(volatile u_int8_t *, u_int8_t);
void atomic_subtract_8(volatile u_int8_t *, u_int8_t);

void atomic_set_16(volatile u_int16_t *, u_int16_t);
void atomic_clear_16(volatile u_int16_t *, u_int16_t);
void atomic_add_16(volatile u_int16_t *, u_int16_t);
void atomic_subtract_16(volatile u_int16_t *, u_int16_t);


Thanks in Advance!

I think you just need to lose the underscore between u and int8. Here's the man page

http://linux.die.net/man/3/uint8_t

Hi -

<stdint.h> should define "uint8_t", the new(er) standard definition for "unsigned byte". I'm not sure exactly who uses (or ever used) "u_int8_t", but going forward, you definitely want "uint8_t.

And clearly, your problem is that "u_int8_t" doesn't happen to be defined in your (new) environment.

SUGGESTION:
Create a local "typedefs.h" for instances like this (the odds are pretty good you'll probably encounter others):

http://markmail.org/message/srd36wevsvcwzdhi

'Hope that helps .. PSM

Wow...thank you so much. Works now!

you might also want to have a look at the gcc 4.3 and 4.4 porting guide pages
http://gcc.gnu.org/gcc-4.3/porting_to.html
http://gcc.gnu.org/gcc-4.4/porting_to.html

Thank you, very useful!!