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VM FFI: write(stderr, msg) and fprintf(cstderr, msg) now work at CT (#13083)

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Timothee Cour 2020-01-12 04:44:43 -08:00 • committed by Andreas Rumpf
commit ee1563ef33
3 changed files with 29 additions and 5 deletions
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10
lib/system/ansi_c.nim
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@ -116,9 +116,15 @@ type
incompleteStruct.} = object
CFilePtr* = ptr CFile ## The type representing a file handle.
# duplicated between io and ansi_c
const stderrName = when defined(osx): "__stderrp" else: "stderr"
const stdoutName = when defined(osx): "__stdoutp" else: "stdout"
const stdinName = when defined(osx): "__stdinp" else: "stdin"
var
cstderr* {.importc: "stderr", header: "<stdio.h>".}: CFilePtr
cstdout* {.importc: "stdout", header: "<stdio.h>".}: CFilePtr
cstderr* {.importc: stderrName, header: "<stdio.h>".}: CFilePtr
cstdout* {.importc: stdoutName, header: "<stdio.h>".}: CFilePtr
cstdin* {.importc: stdinName, header: "<stdio.h>".}: CFilePtr
proc c_fprintf*(f: CFilePtr, frmt: cstring): cint {.
importc: "fprintf", header: "<stdio.h>", varargs, discardable.}