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| author | jilles <jilles@FreeBSD.org> | 2011-02-12 23:44:05 +0000 |
|---|---|---|
| committer | jilles <jilles@FreeBSD.org> | 2011-02-12 23:44:05 +0000 |
| commit | 2fb060368627dc29279d5ac969e6c3eb6b0e7ea3 (patch) | |
| tree | cc8681e662bed68e4af8833df6725164bd71882d /bin/sh/shell.h | |
| parent | 4fe7a7870a6da7d72489d152af4b1a951eb50ae4 (diff) | |
| download | FreeBSD-src-2fb060368627dc29279d5ac969e6c3eb6b0e7ea3.zip FreeBSD-src-2fb060368627dc29279d5ac969e6c3eb6b0e7ea3.tar.gz | |
sh: Detect dividing the smallest integer by -1.
This overflows and on some architectures such as amd64 it generates SIGFPE.
Generate an error on all architectures.
Diffstat (limited to 'bin/sh/shell.h')
| -rw-r--r-- | bin/sh/shell.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/bin/sh/shell.h b/bin/sh/shell.h index 9bf399f..5f6d0ac 100644 --- a/bin/sh/shell.h +++ b/bin/sh/shell.h @@ -59,6 +59,8 @@ typedef intmax_t arith_t; #define ARITH_FORMAT_STR "%" PRIdMAX #define atoarith_t(arg) strtoimax(arg, NULL, 0) #define strtoarith_t(nptr, endptr, base) strtoimax(nptr, endptr, base) +#define ARITH_MIN INTMAX_MIN +#define ARITH_MAX INTMAX_MAX typedef void *pointer; #define MKINIT /* empty */ |
