spf13/cast

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safe and easy casting from one type to another in Go

Stars: 4k
Forks: 337
Open beginner issues: 0
Indexed issues: 44
Avg merge: 15m
Merged PRs (30d): 1

Dominant language: Go
License: MIT
Last GitHub push: Sep 9, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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44 open issues indexed

Out-of-range numeric conversions silently wrap instead of erroring (ToInt64E(uint64max) == -1) Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

spf13/cast#356 · 1 comment · Opened Jul 27, 2026
Feature: ToSlice Open

Difficulty 3/5 1-2 days Newbie friendliness 67/100

spf13/cast#355 · Opened Jul 27, 2026
Feature: Add hex string to uint64 conversion support Open

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

spf13/cast#334 · 1 comment · Opened Mar 9, 2026
Feature: Add ToSliceX for numeric types Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

spf13/cast#325 · 2 comments · Opened Jan 5, 2026
Test failures on 32bit systems Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

spf13/cast#310 · 1 comment · Opened Oct 10, 2025
the code「cast.ToInt("08") 」 has unexpected value result Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

spf13/cast#290 · 1 comment · 1 reaction · Opened Aug 7, 2025
why freeze the patch number of the go version Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

spf13/cast#286 · 1 comment · Opened Jul 16, 2025
Road to v2 Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

spf13/cast#266 · 1 reaction · Opened May 31, 2025
Inconsistent out of bounds errors Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

spf13/cast#260 · 3 comments · Opened May 31, 2025
Unexpected number conversion Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

spf13/cast#258 · Opened May 31, 2025
cast.ToUint32("0134444") = 47396 Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

spf13/cast#232 · 3 comments · Opened Jan 7, 2025
Bug or bad entry ? Open

Difficulty 2/5 1-3 hours Newbie friendliness 42/100

spf13/cast#227 · 1 comment · Opened Sep 23, 2024
Why ToTimeE() use UTC as the default instead of Local? Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

spf13/cast#225 · Opened Sep 9, 2024
Unexpected Floating Point Precision Issue When Multiplying by 100 Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

spf13/cast#222 · 1 comment · Opened Aug 9, 2024
Add default value to To_____ methods Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

spf13/cast#218 · 4 reactions · Opened Jun 28, 2024
cast string to uint64 and uint32 failed on arm32 Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

spf13/cast#217 · Opened Jun 6, 2024
ToInt have bad case Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

spf13/cast#216 · 1 comment · Opened Apr 15, 2024
cast.ToInt("08") return 0 and so on Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

spf13/cast#214 · 4 comments · Opened Mar 14, 2024
cast toint32 but return zero Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

spf13/cast#202 · Opened Nov 2, 2023
byte to int？ Open

Difficulty 2/5 1-3 hours Newbie friendliness 20/100

spf13/cast#194 · 1 comment · Opened Aug 17, 2023
memory cost maybe big Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

spf13/cast#188 · Opened May 24, 2023
Unexpected results with padded strings Open

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

spf13/cast#182 · 3 comments · Opened Apr 1, 2023
Add IntTobytes Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

spf13/cast#181 · Opened Mar 17, 2023
Urgent Bug: github.com/frankban/quicktest references LGPL license Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

spf13/cast#173 · 2 comments · Opened Mar 2, 2023
Replace errNegativeNotAllowed with overflow error Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

spf13/cast#171 · Opened Feb 5, 2023
Write performance benchmarks for a number of different conversion methods Open

spf13/cast#169 · 1 assignee · Opened Feb 5, 2023
cast protobuf enum return 0 Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

spf13/cast#163 · Opened Dec 14, 2022
cast.ToInt64E("16025123132364928") return 0 Open

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

spf13/cast#162 · 1 comment · Opened Dec 13, 2022
ToStringMapString is unable to cast map[string][]interface{} and error is omitted Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

spf13/cast#159 · Opened Oct 11, 2022
cast.ToInt("08") returned 0 Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

spf13/cast#147 · 1 comment · Opened Jun 28, 2022
when Nullable(Float64)\Nullable(String) Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

spf13/cast#145 · Opened Jun 7, 2022
the function ToInt sometimes has some mistakes Open

Difficulty 2/5 1-3 hours Newbie friendliness 50/100

spf13/cast#133 · 2 comments · Opened Jan 19, 2022
Cast to reflect.Value Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

spf13/cast#117 · 2 comments · Opened Aug 9, 2021
ToSliceE: unable to cast []somestruct to []interface{} Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

spf13/cast#114 · Opened Jun 25, 2021
toInt/toInt64 is wrong Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

spf13/cast#112 · 4 comments · Opened Apr 21, 2021
Question: Why not use indirect for map Open

Difficulty 2/5 1-3 hours Newbie friendliness 42/100

spf13/cast#105 · 2 comments · Opened Oct 10, 2020
[BUG] Unixtimestemp in string Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

spf13/cast#102 · Opened Sep 16, 2020
bug of toInt toInt32 toInt64 Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

spf13/cast#96 · 1 comment · Opened May 11, 2020
"ToStringSlice" does not support slice of ints? Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

spf13/cast#88 · Opened Nov 13, 2019
Wrap a common "cast error" for To___E functions Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

spf13/cast#86 · Opened Nov 1, 2019
Casting a string to int with a 0 in prefix does not work as expected Open

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

spf13/cast#74 · 1 comment · 1 reaction · Opened Mar 11, 2019
Add overflow check Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

spf13/cast#63 · 3 comments · Opened Jul 12, 2018
Support inline json for []string Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

spf13/cast#62 · 1 comment · 3 reactions · Opened Jun 29, 2018
Support for ToSliceMapStringString in cast useful or better implement myself? Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

spf13/cast#36 · Opened Jan 8, 2017

spf13/cast

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