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Diffstat (limited to 'CodingStyle')
| -rw-r--r-- | CodingStyle | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/CodingStyle b/CodingStyle index 69df907a2..f4765ad8d 100644 --- a/CodingStyle +++ b/CodingStyle @@ -430,7 +430,9 @@ and precedence makes it necessary, or unless the operands are themselves expressions that use && and ||. Thus: - if (!isdigit(s[0]) || !isdigit(s[1]) || !isdigit(s[2])) { + if (!isdigit((unsigned char)s[0]) + || !isdigit((unsigned char)s[1]) + || !isdigit((unsigned char)s[2])) { printf("string %s does not start with 3-digit code\n", s); } |