audio - C++ OpenAL will not play WAV file -

so have written method meant accept file path .wav file, go through creation of buffers , sources, , play sound. apparently, no sound play when run program. none of error checks trigger, there's nothing wrong file. have scoured google past few hours , have come empty handed, wanted ask here. here code:

file* fp = null;  fp = fopen("audiofile.wav", "rb");  char type[4]; dword size, chunksize; short formattype, channels; dword samplerate, avgbytespersec; short bytespersample, bitspersample; dword datasize;  fread(type, sizeof(char), 4, fp); if (type[0] != 'r' || type[1] != 'i' || type[2] != 'f' || type[3] != 'f')     fatalerror("openal error: no riff");  fread(&size, sizeof(dword), 1, fp); fread(type, sizeof(char), 4, fp); if (type[0] != 'w' || type[1] != 'a' || type[2] != 'v' || type[3] != 'e')     fatalerror("openal error: not wave file");  fread(type, sizeof(char), 4, fp); if (type[0] != 'f' || type[1] != 'm' || type[2] != 't' || type[3] != ' ')     fatalerror("openal error: not fmt");  fread(&chunksize, sizeof(dword), 1, fp); fread(&formattype, sizeof(short), 1, fp); fread(&channels, sizeof(short), 1, fp); fread(&samplerate, sizeof(dword), 1, fp); fread(&avgbytespersec, sizeof(dword), 1, fp); fread(&bytespersample, sizeof(short), 1, fp); fread(&bitspersample, sizeof(short), 1, fp);  fread(type, sizeof(char), 4, fp); if (type[0] != 'd' || type[1] != 'a' || type[2] != 't' || type[3] != 'a')     fatalerror("openal error: missing data");  fread(&datasize, sizeof(dword), 1, fp);  alcdevice* device; alccontext* context;  device = alcopendevice(null); if (!device)     fatalerror("openal error: no sound device detected");  context = alccreatecontext(device, null); alcmakecontextcurrent(context); if (!context)     fatalerror("openal error: no sound context");  unsigned char* buf = new unsigned char[datasize]; fread(buf, sizeof(byte), datasize, fp);  aluint source; aluint buffer; aluint frequency = samplerate; alenum format = 0;  algenbuffers(1, &buffer); algensources(1, &source);  if (bitspersample == 8) {     if (channels == 1)         format = al_format_mono8;     else if (channels == 2)         format = al_format_stereo8; } else if (bitspersample == 16) {     if (channels == 1)         format = al_format_mono16;     else if (channels == 2)         format = al_format_stereo16; }  albufferdata(buffer, format, buf, datasize, frequency);  alfloat sourcepos[] = { 0.0f, 0.0f, 0.0f }; alfloat sourcevel[] = { 0.0f, 0.0f, 0.0f }; alfloat listenerpos[] = { 0.0f, 0.0f, 0.0f }; alfloat listenervel[] = { 0.0f, 0.0f, 0.0f }; alfloat listenerori[] = { 0.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f };  // listener allistenerfv(al_position, listenerpos); allistenerfv(al_velocity, listenervel); allistenerfv(al_orientation, listenerori);  // source alsourcei(source, al_buffer, buffer); alsourcef(source, al_pitch, 1.0f); alsourcef(source, al_gain, 1.0f); alsourcefv(source, al_position, sourcepos); alsourcefv(source, al_velocity, sourcevel); alsourcei(source, al_looping, al_false);  alsourceplay(source);  fclose(fp); delete[] buf;  aldeletesources(1, &source); aldeletebuffers(1, &buffer); alcmakecontextcurrent(null); alcdestroycontext(context); alcclosedevice(device);