[c] Are types like uint32, int32, uint64, int64 defined in any stdlib header?

The C99 stdint.h defines these:

  • int8_t
  • int16_t
  • int32_t
  • uint8_t
  • uint16_t
  • uint32_t

And, if the architecture supports them:

  • int64_t
  • uint64_t

There are various other integer typedefs in stdint.h as well.

If you're stuck without a C99 environment then you should probably supply your own typedefs and use the C99 ones anyway.

The uint32 and uint64 (i.e. without the _t suffix) are probably application specific.