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Detect endianness at compile time

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Chocobo1 2018-05-13 22:28:02 +08:00
parent 3b1fa19ea8
commit 0a49f76c0a
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GPG Key ID: 210D9C873253A68C
1 changed files with 6 additions and 4 deletions
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10
src/base/net/private/geoipdatabase.cpp
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@ -38,8 +38,6 @@
namespace namespace
{ {
const quint32 __ENDIAN_TEST__ = 0x00000001;
const bool __IS_LITTLE_ENDIAN__ = (reinterpret_cast<const uchar *>(&__ENDIAN_TEST__)[0] == 0x01);
const qint32 MAX_FILE_SIZE = 67108864; // 64MB const qint32 MAX_FILE_SIZE = 67108864; // 64MB
const char DB_TYPE[] = "GeoLite2-Country"; const char DB_TYPE[] = "GeoLite2-Country";
const quint32 MAX_METADATA_SIZE = 131072; // 128KB const quint32 MAX_METADATA_SIZE = 131072; // 128KB
@ -448,8 +446,12 @@ bool GeoIPDatabase::readDataFieldDescriptor(quint32 &offset, DataFieldDescriptor
void GeoIPDatabase::fromBigEndian(uchar *buf, quint32 len) const void GeoIPDatabase::fromBigEndian(uchar *buf, quint32 len) const
{ {
if (__IS_LITTLE_ENDIAN__) #if (Q_BYTE_ORDER == Q_LITTLE_ENDIAN)
std::reverse(buf, buf + len); std::reverse(buf, buf + len);
#else
Q_UNUSED(buf);
Q_UNUSED(len);
#endif
} }
QVariant GeoIPDatabase::readMapValue(quint32 &offset, quint32 count) const QVariant GeoIPDatabase::readMapValue(quint32 &offset, quint32 count) const