This patch added description for -Winit-cstring option to sparse.1. Signed-off-by: Masatake YAMATO <yamato@xxxxxxxxxx> --- sparse.1 | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/sparse.1 b/sparse.1 index ae85b54..cd6be26 100644 --- a/sparse.1 +++ b/sparse.1 @@ -189,6 +189,24 @@ Sparse issues these warnings by default. To turn them off, use \fB\-Wno\-enum\-mismatch\fR. . .TP +.B \-Winit\-cstring +Warn about initialization of a char array with a too long constant C string. + +If the size of the char array and the length of the string is the same, +there is no space for the last nul char of the string in the array: + +.nf +char s[3] = "abc"; +.fi + +If the array is used as a byte array, not as C string, this +warning is just noise. However, if the array is passed to functions +dealing with C string like printf(%s) and strcmp, it may cause a +trouble. + +Sparse does not issue these warnings by default. +. +.TP .B \-Wnon\-pointer\-null Warn about the use of 0 as a NULL pointer. -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-sparse" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
