tor

The Tor anonymity network
git clone https://git.dasho.dev/tor.git
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crypto_int32.h (621B)

      1 /* Added for Tor. */
      2 
      3 #ifndef CRYPTO_INT32_H
      4 #define CRYPTO_INT32_H
      5 
      6 #include "lib/cc/torint.h"
      7 #define crypto_int32 int32_t
      8 #define crypto_uint32 uint32_t
      9 
     10 /*
     11 Stop signed left shifts overflowing
     12 by using unsigned types for bitwise operations
     13 */
     14 
     15 #ifndef OVERFLOW_SAFE_SIGNED_LSHIFT
     16 #define OVERFLOW_SAFE_SIGNED_LSHIFT(s, lshift, utype, stype) \
     17  ((stype)((utype)(s) << (utype)(lshift)))
     18 #endif
     19 
     20 #define SHL32(s, lshift) \
     21  OVERFLOW_SAFE_SIGNED_LSHIFT(s, lshift, crypto_uint32, crypto_int32)
     22 #define SHL8(s, lshift) \
     23  OVERFLOW_SAFE_SIGNED_LSHIFT(s, lshift, unsigned char, signed char)
     24 
     25 #endif /* CRYPTO_INT32_H */