go type_error ai_generated true

cannot convert x (variable of type string) to type int

ID: go/cannot-convert-type

Also available as: JSON · Markdown
92%Fix Rate
93%Confidence
50Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1 active — — —

Root Cause

Direct type conversion not possible. Need strconv or encoding.

generic

Workarounds

  1. 95% success Use strconv package for string ↔ number conversions 
    n, err := strconv.Atoi(s)  // string to int
s := strconv.Itoa(n)  // int to string

    Sources: https://pkg.go.dev/strconv

  2. 85% success Use encoding/json for complex struct conversions 
    Use encoding/json for complex struct conversions

    Sources: https://pkg.go.dev/encoding/json

Dead Ends

Common approaches that don't work:

  1. Use unsafe.Pointer for conversion 90% fail

    Undefined behavior, corrupts data

  2. Convert via interface{} 65% fail

    Runtime panic on wrong assertion

Error Chain

Preceded by: