#ifndef __HASHFUNCTIONS_H__#define __HASHFUNCTIONS_H__ #include <stdio.h>#include <string.h>#include <gtest/gtest.h>#include "../sha1.h" static void ToHashStr (char* dst, const unsigned char* src, size_t src_len) {  for (size_t i = 0; i < src_len; ++i) {    sprintf (&dst[i * 2], "%.2x", src[i]);  }  dst[src_len * 2] = '\0';} inline void CompareHash (const unsigned char* digest, const char* hashStr) {  char hashStrCmp[SHA_DIGEST_LENGTH * 2 + 1];  ToHashStr (hashStrCmp, digest, SHA_DIGEST_LENGTH);  EXPECT_STREQ (hashStr, hashStrCmp);} inline void CompareHashAnyOf (const unsigned char* digest, const char* const hashStr[], size_t nHashStr) {  char hashStrCmp[SHA_DIGEST_LENGTH * 2 + 1];  ToHashStr (hashStrCmp, digest, SHA_DIGEST_LENGTH);  for (size_t i = 0; i < nHashStr && hashStr[i]; ++i) {    if (0 == strcmp (hashStr[i], hashStrCmp))      return;  }  // No match found. Compare to first hash so as to produce a grepable failure.  EXPECT_STREQ (hashStr[0], hashStrCmp);} #endif //__HASHFUNCTIONS_H__