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discard """
targets: "c cpp js"
matrix: "--gc:refc; --gc:arc"
"""
from std/sugar import collect
from stdtest/testutils import whenRuntimeJs, whenVMorJs
import std/assertions
template testMitems() =
block:
var a = "abc"
var b = a.cstring
let s = collect:
for bi in mitems(b):
if bi == 'b': bi = 'B'
bi
whenRuntimeJs:
discard # xxx mitems should give CT error instead of @['\x00', '\x00', '\x00']
do:
doAssert s == @['a', 'B', 'c']
block:
var a = "abc\0def"
var b = a.cstring
let s = collect:
for bi in mitems(b):
if bi == 'b': bi = 'B'
bi
whenRuntimeJs:
discard # ditto
do:
doAssert s == @['a', 'B', 'c']
proc mainProc() =
testMitems()
template main() =
block: # bug #13859
let str = "abc".cstring
doAssert len(str).int8 == 3
doAssert len(str).int16 == 3
doAssert len(str).int32 == 3
var str2 = "cde".cstring
doAssert len(str2).int8 == 3
doAssert len(str2).int16 == 3
doAssert len(str2).int32 == 3
const str3 = "abc".cstring
doAssert len(str3).int32 == 3
doAssert len("abc".cstring).int16 == 3
doAssert len("abc".cstring).float32 == 3.0
block: # bug #17159
block:
var a = "abc"
var b = a.cstring
doAssert $(b, ) == """("abc",)"""
let s = collect:
for bi in b: bi
doAssert s == @['a', 'b', 'c']
block:
var a = "abc\0def"
var b = a.cstring
let s = collect:
for bi in b: bi
whenRuntimeJs:
doAssert $(b, ) == """("abc\x00def",)"""
doAssert s == @['a', 'b', 'c', '\x00', 'd', 'e', 'f']
do:
doAssert $(b, ) == """("abc",)"""
doAssert s == @['a', 'b', 'c']
block:
when defined(gcArc): # xxx SIGBUS
discard
else:
mainProc()
when false: # xxx bug vm: Error: unhandled exception: 'node' is not accessible using discriminant 'kind' of type 'TFullReg' [FieldDefect]
testMitems()
block: # bug #13321: [codegen] --gc:arc does not properly emit cstring, results in SIGSEGV
let a = "hello".cstring
doAssert $a == "hello"
doAssert $a[0] == "h"
doAssert $a[4] == "o"
whenVMorJs: discard # xxx this should work in vm, refs https://github.com/timotheecour/Nim/issues/619
do:
doAssert a[a.len] == '\0'
static: main()
main()
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