Hi,
I have a file : foo.c, which is like:
#line 20 "./.acc_dir/c-typeck.c"
int main() {
#line 39309 "./.acc_dir/c-typeck.c" <-- if change to 32767, no
warning message below
return 3;
}
gcc -c foo.c -pedantic
./.acc_dir/c-typeck.c:22:7: warning: line number out of range.
It seems that when the line number > 32767, which is the max of short
int, the warning message is issued. So I assume gcc uses a short int to
store the line number.
Is it appropriate ?
According to C99,
# line digit-sequence new-line
causes the implementation to behave as if the following sequence of
source lines begins with a source line that has a line number as
specified by the digit sequence (interpreted as a decimal integer). The
digit sequence shall not specify zero, nor a number greater than
2147483647.
there should not be such a limit of 32767.
Can anyone clarify it ?
Thanks.
Mike
