C++ (Cpp) bignum_to_int64 Examples

Example #1

File: database.c Project: jimflood/sqlite3-ruby

static void set_sqlite3_func_result(sqlite3_context * ctx, VALUE result)
{
  switch(TYPE(result)) {
    case T_NIL:
      sqlite3_result_null(ctx);
      break;
    case T_FIXNUM:
      sqlite3_result_int64(ctx, (sqlite3_int64)FIX2LONG(result));
      break;
    case T_BIGNUM: {
#if SIZEOF_LONG < 8
      sqlite3_int64 num64;

      if (bignum_to_int64(result, &num64)) {
	  sqlite3_result_int64(ctx, num64);
	  break;
      }
#endif
    }
    case T_FLOAT:
      sqlite3_result_double(ctx, NUM2DBL(result));
      break;
    case T_STRING:
      if(CLASS_OF(result) == cSqlite3Blob
#ifdef HAVE_RUBY_ENCODING_H
              || rb_enc_get_index(result) == rb_ascii8bit_encindex()
#endif
        ) {
        sqlite3_result_blob(
            ctx,
            (const void *)StringValuePtr(result),
            (int)RSTRING_LEN(result),
            SQLITE_TRANSIENT
        );
      } else {
        sqlite3_result_text(
            ctx,
            (const char *)StringValuePtr(result),
            (int)RSTRING_LEN(result),
            SQLITE_TRANSIENT
        );
      }
      break;
    default:
      rb_raise(rb_eRuntimeError, "can't return %s",
          rb_class2name(CLASS_OF(result)));
  }
}

Example #2

/* call-seq: stmt.bind_param(key, value)
 *
 * Binds value to the named (or positional) placeholder. If +param+ is a
 * Fixnum, it is treated as an index for a positional placeholder.
 * Otherwise it is used as the name of the placeholder to bind to.
 *
 * See also #bind_params.
 */
static VALUE bind_param(VALUE self, VALUE key, VALUE value)
{
  sqlite3StmtRubyPtr ctx;
  int status;
  int index;

  Data_Get_Struct(self, sqlite3StmtRuby, ctx);
  REQUIRE_OPEN_STMT(ctx);

  switch(TYPE(key)) {
    case T_SYMBOL:
      key = rb_funcall(key, rb_intern("to_s"), 0);
    case T_STRING:
      if(RSTRING_PTR(key)[0] != ':') key = rb_str_plus(rb_str_new2(":"), key);
      index = sqlite3_bind_parameter_index(ctx->st, StringValuePtr(key));
      break;
    default:
      index = (int)NUM2INT(key);
  }

  if(index == 0)
    rb_raise(rb_path2class("SQLite3::Exception"), "no such bind parameter");

  switch(TYPE(value)) {
    case T_STRING:
      if(CLASS_OF(value) == cSqlite3Blob
              || rb_enc_get_index(value) == rb_ascii8bit_encindex()
        ) {
        status = sqlite3_bind_blob(
            ctx->st,
            index,
            (const char *)StringValuePtr(value),
            (int)RSTRING_LEN(value),
            SQLITE_TRANSIENT
            );
      } else {


        if (UTF16_LE_P(value) || UTF16_BE_P(value)) {
          status = sqlite3_bind_text16(
              ctx->st,
              index,
              (const char *)StringValuePtr(value),
              (int)RSTRING_LEN(value),
              SQLITE_TRANSIENT
              );
        } else {
          if (!UTF8_P(value) || !USASCII_P(value)) {
              value = rb_str_encode(value, rb_enc_from_encoding(rb_utf8_encoding()), 0, Qnil);
          }
        status = sqlite3_bind_text(
            ctx->st,
            index,
            (const char *)StringValuePtr(value),
            (int)RSTRING_LEN(value),
            SQLITE_TRANSIENT
            );
        }
      }
      break;
    case T_BIGNUM: {
      sqlite3_int64 num64;
      if (bignum_to_int64(value, &num64)) {
          status = sqlite3_bind_int64(ctx->st, index, num64);
          break;
      }
    }
    case T_FLOAT:
      status = sqlite3_bind_double(ctx->st, index, NUM2DBL(value));
      break;
    case T_FIXNUM:
      status = sqlite3_bind_int64(ctx->st, index, (sqlite3_int64)FIX2LONG(value));
      break;
    case T_NIL:
      status = sqlite3_bind_null(ctx->st, index);
      break;
    default:
      rb_raise(rb_eRuntimeError, "can't prepare %s",
          rb_class2name(CLASS_OF(value)));
      break;
  }

  CHECK(sqlite3_db_handle(ctx->st), status);

  return self;
}