signature

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// Copyright (C) 2010, Guy Barrand. All rights reserved.
// See the file tools.license for terms.
 
#ifndef tools_signature
#define tools_signature
 
#include <string>
#include <cstdio>
 
namespace tools {
namespace file {
 
inline bool signature(const std::string& a_file,unsigned char a_head[],unsigned int& a_num){ //it is assumed a_head[] can contain a_num chars.
  FILE* file = ::fopen(a_file.c_str(),"rb");
  if(!file) {a_num=0;return false;}
  a_num = (unsigned int)::fread(a_head,1,a_num,file);
  ::fclose(file);
  return true;
}
 
}}
 
#endif