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treat base 1 as an error in strtol-family functions

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ISO C and POSIX only specify behavior for base arguments of 0 and
2-36; POSIX mandates an EINVAL error for unsupported bases. it's not
clear that there's a requirement for implementations not to "support"
additional bases as an extension, but "base 1" did not work in any
meaningful way anyway, so it should be considered unsupported and thus
an error.
This commit is contained in:
Rich Felker 2017-01-04 19:48:21 -05:00
parent 786fda875a
commit 809ff8cf90
1 changed files with 1 additions and 1 deletions
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2
src/internal/intscan.c
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@ -29,7 +29,7 @@ unsigned long long __intscan(FILE *f, unsigned base, int pok, unsigned long long
int c, neg=0;
unsigned x;
unsigned long long y;
if (base > 36) {
if (base > 36 || base == 1) {
errno = EINVAL;
return 0;
}