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// license:GPL-2.0+
// copyright-holders:Couriersud
/*
* palloc.c
*
*/
#include "pexception.h"
#include "pfmtlog.h"
#include <cfenv>
#if (defined(__x86_64__) || defined(__i386__)) && defined(__linux__)
#define HAS_FEENABLE_EXCEPT (1)
#else
#define HAS_FEENABLE_EXCEPT (0)
#endif
namespace plib {
//============================================================
// Exceptions
//============================================================
pexception::pexception(const pstring &text)
: m_text(text)
{
}
file_e::file_e(const pstring &fmt, const pstring &filename)
: pexception(pfmt(fmt)(filename))
{
}
file_open_e::file_open_e(const pstring &filename)
: file_e("File open failed: {}", filename)
{
}
file_read_e::file_read_e(const pstring &filename)
: file_e("File read failed: {}", filename)
{
}
file_write_e::file_write_e(const pstring &filename)
: file_e("File write failed: {}", filename)
{
}
null_argument_e::null_argument_e(const pstring &argument)
: pexception(pfmt("Null argument passed: {}")(argument))
{
}
out_of_mem_e::out_of_mem_e(const pstring &location)
: pexception(pfmt("Out of memory: {}")(location))
{
}
fpexception_e::fpexception_e(const pstring &text)
: pexception(pfmt("Out of memory: {}")(text))
{
}
bool fpsignalenabler::m_enable = false;
fpsignalenabler::fpsignalenabler(unsigned fpexceptions)
{
#if HAS_FEENABLE_EXCEPT
if (m_enable)
{
int b = 0;
if (fpexceptions & plib::FP_INEXACT) b = b | FE_INEXACT;
if (fpexceptions & plib::FP_DIVBYZERO) b = b | FE_DIVBYZERO;
if (fpexceptions & plib::FP_UNDERFLOW) b = b | FE_UNDERFLOW;
if (fpexceptions & plib::FP_OVERFLOW) b = b | FE_OVERFLOW;
if (fpexceptions & plib::FP_INVALID) b = b | FE_INVALID;
m_last_enabled = feenableexcept(b);
}
#else
m_last_enabled = 0;
#endif
}
fpsignalenabler::~fpsignalenabler()
{
#if HAS_FEENABLE_EXCEPT
if (m_enable)
{
fedisableexcept(FE_ALL_EXCEPT); // Enable all floating point exceptions but FE_INEXACT
feenableexcept(m_last_enabled); // Enable all floating point exceptions but FE_INEXACT
}
#endif
}
bool fpsignalenabler::supported()
{
return true;
}
bool fpsignalenabler::global_enable(bool enable)
{
bool old = m_enable;
m_enable = enable;
return old;
}
} // namespace plib
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