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Merge branch 4.x

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This commit is contained in:
Alexander Smorkalov
2024-04-16 15:43:06 +03:00
parent 68967cf6d7 66fb5021e9
commit db3e5620cd
68 changed files with 2220 additions and 306 deletions
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modules/core/src/persistence.cpp
+17 -5
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@@ -98,9 +98,11 @@ char* doubleToString( char* buf, size_t bufSize, double value, bool explicitZero
}
else
{
static const char* fmt = "%.16e";
// binary64 has 52 bit fraction with hidden bit.
// 53 * log_10(2) is 15.955. So "%.16f" should be fine, but its test fails.
snprintf( buf, bufSize, "%.17g", value );
char* ptr = buf;
snprintf( buf, bufSize, fmt, value );
if( *ptr == '+' || *ptr == '-' )
ptr++;
for( ; cv_isdigit(*ptr); ptr++ )
@@ -140,11 +142,21 @@ char* floatToString( char* buf, size_t bufSize, float value, bool halfprecision,
}
else
{
char* ptr = buf;
if (halfprecision)
snprintf(buf, bufSize, "%.4e", value);
{
// bfloat16 has 7 bit fraction with hidden bit.
// binary16 has 10 bit fraction with hidden bit.
// 11 * log_10(2) is 3.311. So "%.4f" should be fine, but its test fails.
snprintf(buf, bufSize, "%.5g", value);
}
else
snprintf(buf, bufSize, "%.8e", value);
{
// binray32 has 23 bit fraction with hidden bit.
// 24 * log_10(2) is 7.225. So "%.8f" should be fine, but its test fails.
snprintf(buf, bufSize, "%.9g", value);
}
char* ptr = buf;
if( *ptr == '+' || *ptr == '-' )
ptr++;
for( ; cv_isdigit(*ptr); ptr++ )