Portable(ish) breakpoint macros

breakpoint.hpp

#ifndef UT_BREAKPOINT_HPP
#define UT_BREAKPOINT_HPP

#ifndef __has_builtin
#    define UT_DETAIL_HAS_BUILTIN(x) 0
#else
#    define UT_DETAIL_HAS_BUILTIN(x) __has_builtin(x)
#endif

#if defined(__GNUC__)
#    if UT_DETAIL_HAS_BUILTIN(__builtin_debugtrap)
#        define UT_BREAKPOINT()        \
            do {                       \
                __builtin_debugtrap(); \
            } while (false)
#    elif defined(__i386__) || defined(__x86_64__)
#        define UT_BREAKPOINT()       \
            do {                      \
                asm volatile("int3"); \
            } while (false)
#    endif
#elif defined(_MSC_VER)
#    include <intrin.h>
#    define UT_BREAKPOINT() \
        do {                \
            __debugbreak(); \
        } while (false)
#endif
#ifndef UT_BREAKPOINT
#    include <csignal>
#    define UT_BREAKPOINT()      \
        do {                     \
            std::raise(SIGTRAP); \
        } while (false)
#endif


#endif  // UT_BREAKPOINT_HPP

zzz_description

Portable(ish) breakpoint macros