CODEWITHSUNDEEP
c++syntax-error
mikezang
mikezang

Reputation: 2499

Syntax error in: __asm__ ("some_code":::"cc")

I use C++ for project, there includes a c header file ira.h as below:

#ifdef  __cplusplus
    extern "C" {
#endif

extern inline void disable_irqs() {
    __asm__ __volatile__("\torc  #0x80,ccr\n":::"cc");
}

extern inline void enable_irqs() {
    __asm__ __volatile__("\tandc #0x7f,ccr\n":::"cc");
}

#ifdef  __cplusplus
}
#endif

When I compile it, I got error as below:

/usr/local/bin/h8300-hitachi-hms-g++ -DCXX -fno-rtti -fno-exceptions -O2 -fno-builtin -fomit-frame-pointer -Wall -I/brickos/include -I/brickos/include/lnp -I. -I/brickos/boot  -c rcx1.C -o rcx1.o
In file included from PowerFunctionsController.H:32,
             from rcx1.H:27,
             from rcx1.C:21:
/brickos/include/lnp/sys/irq.h: In function `void disable_irqs(...)':
/brickos/include/lnp/sys/irq.h:99: parse error before `::'
/brickos/include/lnp/sys/irq.h: In function `void enable_irqs(...)':
/brickos/include/lnp/sys/irq.h:104: parse error before `::'
make: *** [rcx1.o] Error 1

What can I do?

Upvotes: 1

Views: 307

Answers (1)

Some programmer dude
Some programmer dude

Reputation: 409432

GCC parses the characters sequence ::: as two operators: The scope operator :: and a colon :. It's because it matches the longest sequence it can when parsing keywords and operators. If you don't want that you need to add a space between each colon, like : : :

Upvotes: 7

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