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Current very unstable state.

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Beman
2014-12-05 09:50:45 -05:00
parent db16b51b41
commit 7a77827a71
1 changed files with 0 additions and 42 deletions
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example/use_cases.cpp
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@ -14,55 +14,13 @@
#include <boost/endian/arithmetic.hpp> #include <boost/endian/arithmetic.hpp>
#include <iostream> #include <iostream>
// Maximize chance of name clashes for testing purposes
using namespace boost::endian; using namespace boost::endian;
using std::cout; using std::cout;
using std::endl; using std::endl;
void read(void* data, std::size_t sz); // for exposition
void write(const void* data, std::size_t sz); // for exposition
const int32_t fee(100); // for exposition
int main(int, char *[])
{
{
// Q: Should endian_buffer supply "value_type operator value_type() const noexcept"?
// A: No. The whole point of the endian_buffers is to prevent high-cost hidden
// conversions. If an implicit conversion operator is supplied, hidden conversions
// can occur.
big_buf32_t v(5);
int32_t x;
x = v * v; // error: operator not defined & no conversion available
x = v.value() * v.value(); // OK, conversion visable. "cvt" or "native" better name?
}
{ // Use case 1 - Conversion functions
struct Record
{
uint32_t count; // big endian
int32_t value; // big endian
};
Record rec;
read(&rec, sizeof(Record));
uint32_t count = big(rec.count);
int32_t value = big(rec.value);
++count;
value += fee;
rec.count = big(count);
rec.value = big(value);
write(&rec, sizeof(Record));
}
{ // Use case 2 - Endian buffer types { // Use case 2 - Endian buffer types