static uint64_t NGS_StringToU64( const NGS_String * str, ctx_t ctx )
{
/* have to guarantee NUL-termination for strtou64/strtod */
char buf[4096];
if ( sizeof(buf) > NGS_StringSize ( str, ctx ) )
{
char* end;
uint64_t value;
string_copy ( buf, sizeof(buf),
NGS_StringData ( str, ctx ), NGS_StringSize ( str, ctx ) );
errno = 0;
value = strtou64 ( buf, &end, 10 );
if ( *end == 0 )
{
if ( errno == 0 )
{
return value;
}
}
else
{ /* attempt to parse as a double */
double dbl;
errno = 0;
dbl = strtod ( buf, &end );
if ( *end == 0 && errno == 0 && dbl >= 0 && dbl <= ULLONG_MAX )
{
return ( uint64_t ) xtrunc ( dbl );
}
}
}
INTERNAL_ERROR ( xcUnexpected, "cannot convert dictionary value '%.*s' from string to uint64",
NGS_StringSize ( str, ctx ), NGS_StringData ( str, ctx ) );
return 0;
}
static double NGS_StringToReal ( const NGS_String * str, ctx_t ctx )
{
/* have to guarantee NUL-termination for strtod */
char buf[4096];
if ( sizeof(buf) > NGS_StringSize ( str, ctx ) )
{
char* end;
double real;
string_copy ( buf, sizeof(buf),
NGS_StringData ( str, ctx ), NGS_StringSize ( str, ctx ) );
errno = 0;
real = strtod ( buf, &end );
if ( *end == 0 && errno == 0 )
{
return real;
}
}
INTERNAL_ERROR ( xcUnexpected, "cannot convert dictionary value '%.*s' from string to numeric",
NGS_StringSize ( str, ctx ), NGS_StringData ( str, ctx ) );
return 0.0;
}
std :: string
toString ( const NGS_String* str, ctx_t ctx, bool release_source = false )
{
if ( str == 0 )
{
throw std :: logic_error ( "toString ( NULL ) called" );
}
std :: string ret = std::string ( NGS_StringData ( str, ctx ), NGS_StringSize ( str, ctx ) );
if ( release_source )
{
NGS_StringRelease ( str, ctx );
}
return ret;
}