The C standard specifies two constants, EXIT_SUCCESS and EXIT_FAILURE, that may be passed to exit() to indicate successful or unsuccessful termination, respectively. The value of status in exit(status) may be EXIT_SUCCESS, EXIT_FAILURE, or any other value, though only the least significant 8 bits (that is, status & 0377) shall be available to a waiting parent proces. So exit(-1) return 255. Use the C standard EXIT_SUCCESS and EXIT_FAILURE to indicate the program exit status instead of "0" or "1", respectively. In <stdlib.h> EXIT_FAILURE has the value "1": use EXIT_FAILURE even if the program uses exit(-1), ie 255, for consistency. Signed-off-by: Elia Pinto <gitter.spiros@xxxxxxxxx> --- builtin/merge-index.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/builtin/merge-index.c b/builtin/merge-index.c index c0383fe9df..efa7ceaa35 100644 --- a/builtin/merge-index.c +++ b/builtin/merge-index.c @@ -37,7 +37,7 @@ static int merge_entry(int pos, const char *path) else { if (!quiet) die("merge program failed"); - exit(1); + exit(EXIT_FAILURE); } } return found; -- 2.35.1