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#include "versionstr.h"
#include <memory.h>
#include <stdlib.h>
#include <stdio.h>
#ifdef major
#undef major
#endif
#ifdef minor
#undef minor
#endif
#ifdef patch
#undef patch
#endif
VersionStr::VersionStr(std::string v) throw(const char *)
{
memset(version, 0, sizeof(version));
set(v);
}
VersionStr::VersionStr(size_t major, size_t minor, size_t patch)
{
version[0] = major;
version[1] = minor;
version[2] = patch;
}
void VersionStr::set(std::string v) throw(const char *)
{
std::string num;
size_t idx = 0;
for(size_t i = 0; i < v.length(); i++) {
if(v[i] == '.') {
if(idx > 2) throw "Version string is too long.";
version[idx] = atoi(num.c_str());
idx++;
num = "";
} else if(v[i] >= '0' && v[i] <= '9') {
num.append(1, v[i]);
} else {
throw "Version string contains illegal character.";
}
}
if(idx > 2) throw "Version string is too long.";
version[idx] = atoi(num.c_str());
}
VersionStr::operator std::string() const
{
std::string v;
char buf[64];
if(patch()) sprintf(buf, "%d.%d.%d", major(), minor(), patch());
else sprintf(buf, "%d.%d", major(), minor());
v = buf;
return v;
}
void VersionStr::operator=(std::string v) throw(const char *)
{
set(v);
}
static int vdiff(const VersionStr &a, const VersionStr &b)
{
if(a.major() < b.major()) return -1;
if(a.major() > b.major()) return 1;
if(a.minor() < b.minor()) return -1;
if(a.minor() > b.minor()) return 1;
if(a.patch() < b.patch()) return -1;
if(a.patch() > b.patch()) return 1;
return 0;
}
bool VersionStr::operator<(const VersionStr &other) const
{
if(vdiff(*this, other) == -1) return true;
return false;
}
bool VersionStr::operator>(const VersionStr &other) const
{
if(vdiff(*this, other) == 1) return true;
return false;
}
bool VersionStr::operator==(const VersionStr &other) const
{
if(vdiff(*this, other) == 0) return true;
return false;
}
bool VersionStr::operator<=(const VersionStr &other) const
{
if(vdiff(*this, other) != 1) return true;
return false;
}
bool VersionStr::operator>=(const VersionStr &other) const
{
if(vdiff(*this, other) != -1) return true;
return false;
}
size_t VersionStr::major() const
{
return version[0];
}
size_t VersionStr::minor() const
{
return version[1];
}
size_t VersionStr::patch() const
{
return version[2];
}
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