Converting float values from big endian to little endian

Question

Is it possible to convert floats from big to little endian? I have a big endian value from a PowerPC platform that I am sendING via TCP to a Windows process (little endian). This value is a float, but when I memcpy the value into a Win32 float type and then call _byteswap_ulongon that value, I always get 0.0000?

What am I doing wrong?

Answer 1

simply reverse the four bytes works

float ReverseFloat( const float inFloat ) {    float retVal;    char *floatToConvert = ( char* ) & inFloat;    char *returnFloat = ( char* ) & retVal;     // swap the bytes into a temporary buffer    returnFloat[0] = floatToConvert[3];    returnFloat[1] = floatToConvert[2];    returnFloat[2] = floatToConvert[1];    returnFloat[3] = floatToConvert[0];     return retVal; } 

Answer 2

Here is a function can reverse byte order of any type.

template <typename T> T bswap(T val) {     T retVal;     char *pVal = (char*) &val;     char *pRetVal = (char*)&retVal;     int size = sizeof(T);     for(int i=0; i<size; i++) {         pRetVal[size-1-i] = pVal[i];     }      return retVal; }