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#include "num_read_write.h"
namespace tpt {
typedef unsigned char uchar;
void
numwrite(std::ostream& out, uint16_t const& x)
{
char buf[2];
buf[0] = x%256;
buf[1] = (x>>8)%256;
out.write(buf,2);
}
void
numwrite(std::ostream& out, uint32_t const& x)
{
char buf[4];
buf[0] = x%256;
buf[1] = (x>>8)%256;
buf[2] = (x>>16)%256;
buf[3] = (x>>24)%256;
out.write(buf,4);
}
void
numwrite(std::ostream& out, uint64_t const& x)
{
char buf[8];
buf[0] = x%256;
buf[1] = (x>>8)%256;
buf[2] = (x>>16)%256;
buf[3] = (x>>24)%256;
buf[4] = (x>>32)%256;
buf[5] = (x>>40)%256;
buf[6] = (x>>48)%256;
buf[7] = (x>>56)%256;
out.write(buf,8);
}
char const*
numread(char const* src, uint16_t & x)
{
uchar const* d = reinterpret_cast<uchar const*>(src);
x = (uint16_t(d[0])<<0) | (uint16_t(d[1])<<8);
return src+2;
}
char const*
numread(char const* src, uint32_t & x)
{
uchar const* d = reinterpret_cast<uchar const*>(src);
x = ((uint32_t(d[0])<<0) |
(uint32_t(d[1])<<8) |
(uint32_t(d[2])<<16)|
(uint32_t(d[3])<<24));
return src+4;
}
char const*
numread(char const* src, uint64_t & x)
{
uchar const* d = reinterpret_cast<uchar const*>(src);
x = ((uint64_t(d[0])<<0) |
(uint64_t(d[1])<<8) |
(uint64_t(d[2])<<16) |
(uint64_t(d[3])<<24) |
(uint64_t(d[4])<<32) |
(uint64_t(d[5])<<40) |
(uint64_t(d[6])<<48) |
(uint64_t(d[7])<<56));
return src+8;
}
}
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