Example #1
0
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;
}
Example #2
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;
}
Example #3
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;
}