diff options
Diffstat (limited to 'lib/system/sysstr.nim')
| -rw-r--r-- | lib/system/sysstr.nim | 89 |
1 files changed, 47 insertions, 42 deletions
diff --git a/lib/system/sysstr.nim b/lib/system/sysstr.nim index 43b5a0292..4c5f3d9a1 100644 --- a/lib/system/sysstr.nim +++ b/lib/system/sysstr.nim @@ -24,10 +24,10 @@ proc cmpStrings(a, b: NimString): int {.inline, compilerProc.} = if a == b: return 0 if a == nil: return -1 if b == nil: return 1 - when defined(nimNoArrayToCstringConversion): - return c_strcmp(addr a.data, addr b.data) - else: - return c_strcmp(a.data, b.data) + let minlen = min(a.len, b.len) + result = c_memcmp(addr a.data, addr b.data, minlen.csize) + if result == 0: + result = a.len - b.len proc eqStrings(a, b: NimString): bool {.inline, compilerProc.} = if a == b: return true @@ -259,7 +259,7 @@ proc incrSeqV2(seq: PGenericSeq, elemSize: int): PGenericSeq {.compilerProc.} = result.reserved = r proc setLengthSeq(seq: PGenericSeq, elemSize, newLen: int): PGenericSeq {. - compilerRtl.} = + compilerRtl, inl.} = result = seq if result.space < newLen: let r = max(resize(result.space), newLen) @@ -278,14 +278,15 @@ proc setLengthSeq(seq: PGenericSeq, elemSize, newLen: int): PGenericSeq {. GenericSeqSize +% (i*%elemSize)), extGetCellType(result).base, waPush) let len1 = gch.tempStack.len - for i in len0 .. <len1: + for i in len0 ..< len1: doDecRef(gch.tempStack.d[i], LocalHeap, MaybeCyclic) gch.tempStack.len = len0 else: - for i in newLen..result.len-1: - forAllChildrenAux(cast[pointer](cast[ByteAddress](result) +% - GenericSeqSize +% (i*%elemSize)), - extGetCellType(result).base, waZctDecRef) + if ntfNoRefs notin extGetCellType(result).base.flags: + for i in newLen..result.len-1: + forAllChildrenAux(cast[pointer](cast[ByteAddress](result) +% + GenericSeqSize +% (i*%elemSize)), + extGetCellType(result).base, waZctDecRef) # XXX: zeroing out the memory can still result in crashes if a wiped-out # cell is aliased by another pointer (ie proc parameter or a let variable). @@ -322,36 +323,40 @@ proc nimIntToStr(x: int): string {.compilerRtl.} = result.add x proc add*(result: var string; x: float) = - var buf: array[0..64, char] - when defined(nimNoArrayToCstringConversion): - var n: int = c_sprintf(addr buf, "%.16g", x) + when nimvm: + result.add $x else: - var n: int = c_sprintf(buf, "%.16g", x) - var hasDot = false - for i in 0..n-1: - if buf[i] == ',': - buf[i] = '.' - hasDot = true - elif buf[i] in {'a'..'z', 'A'..'Z', '.'}: - hasDot = true - if not hasDot: - buf[n] = '.' - buf[n+1] = '0' - buf[n+2] = '\0' - # On Windows nice numbers like '1.#INF', '-1.#INF' or '1.#NAN' are produced. - # We want to get rid of these here: - if buf[n-1] in {'n', 'N'}: - result.add "nan" - elif buf[n-1] == 'F': - if buf[0] == '-': - result.add "-inf" + var buf: array[0..64, char] + when defined(nimNoArrayToCstringConversion): + var n: int = c_sprintf(addr buf, "%.16g", x) else: - result.add "inf" - else: - var i = 0 - while buf[i] != '\0': - result.add buf[i] - inc i + var n: int = c_sprintf(buf, "%.16g", x) + var hasDot = false + for i in 0..n-1: + if buf[i] == ',': + buf[i] = '.' + hasDot = true + elif buf[i] in {'a'..'z', 'A'..'Z', '.'}: + hasDot = true + if not hasDot: + buf[n] = '.' + buf[n+1] = '0' + buf[n+2] = '\0' + # On Windows nice numbers like '1.#INF', '-1.#INF' or '1.#NAN' + # of '-1.#IND' are produced. + # We want to get rid of these here: + if buf[n-1] in {'n', 'N', 'D', 'd'}: + result.add "nan" + elif buf[n-1] == 'F': + if buf[0] == '-': + result.add "-inf" + else: + result.add "inf" + else: + var i = 0 + while buf[i] != '\0': + result.add buf[i] + inc i proc nimFloatToStr(f: float): string {.compilerproc.} = result = newStringOfCap(8) @@ -362,9 +367,9 @@ proc c_strtod(buf: cstring, endptr: ptr cstring): float64 {. const IdentChars = {'a'..'z', 'A'..'Z', '0'..'9', '_'} - powtens = [ 1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, - 1e10, 1e11, 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19, - 1e20, 1e21, 1e22] + powtens = [1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, + 1e10, 1e11, 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19, + 1e20, 1e21, 1e22] proc nimParseBiggestFloat(s: string, number: var BiggestFloat, start = 0): int {.compilerProc.} = @@ -508,7 +513,7 @@ proc nimParseBiggestFloat(s: string, number: var BiggestFloat, # insert exponent t[ti] = 'E'; inc(ti) - t[ti] = if exp_negative: '-' else: '+'; inc(ti) + t[ti] = (if exp_negative: '-' else: '+'); inc(ti) inc(ti, 3) # insert adjusted exponent |