prometheus/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/convert.go

package runtime

import (
	"strconv"
)

// String just returns the given string.
// It is just for compatibility to other types.
func String(val string) (string, error) {
	return val, nil
}

// Bool converts the given string representation of a boolean value into bool.
func Bool(val string) (bool, error) {
	return strconv.ParseBool(val)
}

// Float64 converts the given string representation into representation of a floating point number into float64.
func Float64(val string) (float64, error) {
	return strconv.ParseFloat(val, 64)
}

// Float32 converts the given string representation of a floating point number into float32.
func Float32(val string) (float32, error) {
	f, err := strconv.ParseFloat(val, 32)
	if err != nil {
		return 0, err
	}
	return float32(f), nil
}

// Int64 converts the given string representation of an integer into int64.
func Int64(val string) (int64, error) {
	return strconv.ParseInt(val, 0, 64)
}

// Int32 converts the given string representation of an integer into int32.
func Int32(val string) (int32, error) {
	i, err := strconv.ParseInt(val, 0, 32)
	if err != nil {
		return 0, err
	}
	return int32(i), nil
}

// Uint64 converts the given string representation of an integer into uint64.
func Uint64(val string) (uint64, error) {
	return strconv.ParseUint(val, 0, 64)
}

// Uint32 converts the given string representation of an integer into uint32.
func Uint32(val string) (uint32, error) {
	i, err := strconv.ParseUint(val, 0, 32)
	if err != nil {
		return 0, err
	}
	return uint32(i), nil
}