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29 lines
880 B
Idris
29 lines
880 B
Idris
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module Temp
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import Data.List
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safeStrHead : (s : String) -> {pr : NonEmpty (unpack s)} -> Char
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safeStrHead s with (unpack s)
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safeStrHead s | [] = absurd pr
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safeStrHead s | (c::_) = c
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safeStrHead1 : (s : String) -> {pr : NonEmpty (unpack s)} -> Char
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safeStrHead1 s with (unpack s)
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safeStrHead1 {pr} s | [] = absurd pr
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safeStrHead1 s | (c::_) = c
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safeStrHead2 : (s : String) -> {pr : NonEmpty (unpack s)} -> Char
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safeStrHead2 s with (unpack s)
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safeStrHead2 {pr=foo} s | [] = absurd foo
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safeStrHead2 s | (c::_) = c
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safeStrHead3 : (s : String) -> {pr : NonEmpty (unpack s)} -> Char
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safeStrHead3 {pr=foo} s with (unpack s)
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safeStrHead3 s | [] = absurd foo
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safeStrHead3 s | (c::_) = c
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safeStrHead4 : (s : String) -> {pr : NonEmpty (unpack s)} -> Char
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safeStrHead4 {pr=foo} s with (unpack s)
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safeStrHead4 {pr=bar} s | [] = absurd bar
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safeStrHead4 s | (c::_) = c
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