}
	return 0, false
}

// ToInt returns the value if int.
func (v Value) ToInt() (val int64, ok bool) {
	val, ok = v.value.(int64)
	return
}

// ToString returns the value if string.
func (v Value) ToString() (val string, ok bool) {
	val, ok = v.value.(string)
	return
}

// Equals returns whether the values strictly match.
// Both type and value must match.

	for i, element := range entry.Trace.Source {
		trace[i] = fmt.Sprintf("%8v: %s", traceLength-i, element)
	}

	tagString := ""
	for key, value := range entry.Trace.Variables {
		if value != "" {
			if tagString != "" {
				tagString += ", "
			}
			tagString += fmt.Sprintf("%s=%#v", key, value)
		}
	}

	var apiString string
	if entry.API != nil {
		apiString = "API: " + entry.API.Name

}

// SimpleArgFunc represents functions with simple expression
// arguments.
type SimpleArgFunc struct {
	FunctionName string `parser:" @(\"AVG\" | \"MAX\" | \"MIN\" | \"SUM\" |  \"COALESCE\" | \"NULLIF\" | \"TO_STRING\" | \"TO_TIMESTAMP\" | \"UTCNOW\" | \"CHAR_LENGTH\" | \"CHARACTER_LENGTH\" | \"LOWER\" | \"UPPER\") "`

	ArgsList []*Expression `parser:"\"(\" (@@ (\",\" @@)*)?\")\""`
}

// CountFunc represents the COUNT sql function

	// Conversion
	sqlFnCast FuncName = "CAST"

	// Date and time
	sqlFnDateAdd     FuncName = "DATE_ADD"
	sqlFnDateDiff    FuncName = "DATE_DIFF"
	sqlFnExtract     FuncName = "EXTRACT"
	sqlFnToString    FuncName = "TO_STRING"
	sqlFnToTimestamp FuncName = "TO_TIMESTAMP"
	sqlFnUTCNow      FuncName = "UTCNOW"

	// String
	sqlFnCharLength      FuncName = "CHAR_LENGTH"
	sqlFnCharacterLength FuncName = "CHARACTER_LENGTH"

		v = b
	} else if f, ok := value.ToFloat(); ok {
		v = f
	} else if i, ok := value.ToInt(); ok {
		v = i
	} else if t, ok := value.ToTimestamp(); ok {
		v = sql.FormatSQLTimestamp(t)
	} else if s, ok := value.ToString(); ok {
		v = s
	} else if value.IsNull() {
		v = nil
	} else if value.IsMissing() {
		return r, nil
	} else if b, ok := value.ToBytes(); ok {
		// This can either be raw json or a CSV value.

		{"string", "abc", "abc"},
		{"other", true, ""},
	}
	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			if out := ToString(test.in); test.out != out {
				t.Fatalf("ToString(%v) want: %s, got: %s", test.in, test.out, out)
			}
		})
	}

	inferTypeAsString(arg)

	s, ok := arg.ToString()
	if !ok {
		err := errLikeNonStrArg
		return nil, errLikeInvalidInputs(err)
	}

	pattern, err1 := e.Pattern.evalNode(r, tableAlias)
	if err1 != nil {
		return nil, err1
	}

	// Infer pattern as string (in case it is untyped)
	inferTypeAsString(pattern)

	patternStr, ok := pattern.ToString()
	if !ok {
		err := errLikeNonStrArg

			if c.incompleteStructs[tag] {
				tt.Go = c.Ident(incomplete)
			}
			typedef[name.Name] = &tt
		}

	case *dwarf.TypedefType:
		// Record typedef for printing.
		if dt.Name == "_GoString_" {
			// Special C name for Go string type.
			// Knows string layout used by compilers: pointer plus length,
			// which rounds up to 2 pointers after alignment.
			t.Go = c.string
			t.Size = c.ptrSize * 2

	return nil
}

// String returns the decimal representation of z.
func (z *Int) String() string {
	if z == nil {
		return "nil"
	}
	z.doinit()
	p := C.mpz_get_str(nil, 10, &z.i[0])
	s := C.GoString(p)
	C.free(unsafe.Pointer(p))
	return s
}

func (z *Int) destroy() {
	if z.init {
		C.mpz_clear(&z.i[0])
	}
	z.init = false
}

/*
 * arithmetic
 */

			case []byte:
				field.ReflectValueOf(ctx, value).SetString(string(data))
			case int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64:
				field.ReflectValueOf(ctx, value).SetString(utils.ToString(data))
			case float64, float32:
				field.ReflectValueOf(ctx, value).SetString(fmt.Sprintf("%."+strconv.Itoa(field.Precision)+"f", data))
			default:
				return fallbackSetter(ctx, value, v, field.Set)
			}