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#ifndef SWAP_ENDIAN
#define SWAP_ENDIAN
/*#include <stdint.h>*/
#include <typeinfo>
#define GCC_VERSION (__GNUC__ * 10000 \
+ __GNUC_MINOR__ * 100 \
+ __GNUC_PATCHLEVEL__)
/* Test for GCC < 4.8.0 */
#if GCC_VERSION < 40800 & !__clang__
static inline unsigned short __builtin_bswap16(unsigned short a)
{
return (a<<8)|(a>>8);
}
#endif
template <typename T>
T swap_endian(T t) {
if (typeid(T) == typeid(int16_t))
return __builtin_bswap16(t);
if (typeid(T) == typeid(uint16_t))
return __builtin_bswap16(t);
if (typeid(T) == typeid(int32_t))
return __builtin_bswap32(t);
if (typeid(T) == typeid(uint32_t))
return __builtin_bswap32(t);
if (typeid(T) == typeid(int64_t))
return __builtin_bswap64(t);
if (typeid(T) == typeid(uint64_t))
return __builtin_bswap64(t);
union v {
double d;
float f;
uint32_t i32;
uint64_t i64;
} val;
if (typeid(T) == typeid(float)){
val.f = t;
val.i32 = __builtin_bswap32(val.i32);
return val.f;
}
if (typeid(T) == typeid(double)){
val.d = t;
val.i64 = __builtin_bswap64(val.i64);
return val.d;
}
else
return t;
}
#endif
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