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| // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc -verify %s
// expected-no-diagnostics
typedef struct {
char I[4];
int S;
} Hdr;
typedef struct {
short w;
} Hdr2;
typedef struct {
Hdr2 usedtobeundef;
} Info;
typedef struct {
const unsigned char *ib;
int cur;
int end;
} IB;
unsigned long gl(IB *input);
inline void gbs(IB *input, unsigned char *buf, int count);
void getB(IB *st, Hdr2 *usedtobeundef);
inline unsigned char gb(IB *input) {
if (input->cur + 1 > input->end)
;
return input->ib[(input->cur)++];
}
static void getID(IB *st, char str[4]) {
str[0] = gb(st);
str[1] = gb(st);
str[2] = gb(st);
str[3] = gb(st);
}
static void getH(IB *st, Hdr *header) {
getID (st, header->I);
header->S = gl(st);
}
static void readILBM(IB *st, Info *pic) {
// Initialize field;
pic->usedtobeundef.w = 5;
// Time out in the function so that we will be forced to retry with no inlining.
Hdr header;
getH (st, &header);
getID(st, header.I);
int i = 0;
while (st->cur < st->end && i < 4) {
i++;
getH (st, &header);
}
}
int bitmapImageRepFromIFF(IB st, const unsigned char *ib, int il) {
Info pic;
st.ib = ib;
st.cur = 0;
st.end = il;
readILBM(&st,&pic);
return pic.usedtobeundef.w; // No undefined value warning here.
}
|