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builtin: simplify println(), use C.write consistently on unix as on windows so that 0 bytes are output also

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Delyan Angelov 2021-04-04 18:13:25 +03:00
parent f3484345c7
commit 824790a2bd
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1 changed files with 12 additions and 19 deletions
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29
vlib/builtin/builtin.c.v
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@ -139,26 +139,19 @@ fn C.asl_log(voidptr, voidptr, int, charptr)
*/ */
// println prints a message with a line end, to stdout. stdout is flushed. // println prints a message with a line end, to stdout. stdout is flushed.
pub fn println(s string) { pub fn println(s string) {
$if windows { if s.str == 0 {
print(s) $if android {
print('\n') C.fprintf(C.stdout, c'println(NIL)\n')
} $else { } $else {
// For debugging .app applications (no way to read stdout) so that it's printed to macOS Console C.write(1, c'println(NIL)\n', 13)
/*
$if macos {
C.asl_log(0, 0, C.ASL_LEVEL_ERR, s.str)
} }
*/ return
// TODO: a syscall sys_write on linux works, except for the v repl. }
// Probably it is a stdio buffering issue. Needs more testing... $if android {
// $if linux { C.fprintf(C.stdout, c'%.*s\n', s.len, s.str)
// $if !android { } $else {
// snl := s + '\n' C.write(1, s.str, s.len)
// C.syscall(/* sys_write */ 1, /* stdout_value */ 1, snl.str, s.len+1) C.write(1, c'\n', 1)
// return
// }
// }
C.printf('%.*s\n', s.len, s.str)
} }
} }