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quad_math: fix or suppress cppcheck warnings

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This commit is contained in:
Oleg Hahm 2017-03-07 17:33:35 +01:00
parent 32c60cd0aa
commit c2dfd8439c
2 changed files with 4 additions and 1 deletions
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3
sys/quad_math/muldi3.c
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@ -97,7 +97,7 @@ quad_t __muldi3(quad_t a, quad_t b)
{ {
union uu u, v, low, prod; union uu u, v, low, prod;
u_int high, mid, udiff, vdiff; u_int high, mid, udiff, vdiff;
int negall, negmid; int negall;
#define u1 u.ul[H] #define u1 u.ul[H]
#define u0 u.ul[L] #define u0 u.ul[L]
#define v1 v.ul[H] #define v1 v.ul[H]
@ -131,6 +131,7 @@ quad_t __muldi3(quad_t a, quad_t b)
prod.q = __lmulq(u0, v0); prod.q = __lmulq(u0, v0);
} }
else { else {
int negmid;
/* /*
* Compute the three intermediate products, remembering * Compute the three intermediate products, remembering
* whether the middle term is negative. We can discard * whether the middle term is negative. We can discard

2
sys/quad_math/qdivrem.c
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@ -78,6 +78,8 @@ __qdivrem(u_quad_t uq, u_quad_t vq, u_quad_t *arq)
/* divide by zero. */ /* divide by zero. */
static volatile const unsigned int zero = 0; static volatile const unsigned int zero = 0;
/* cppcheck-suppress zerodiv
* Divission by zero is on purpose here */
tmp.ul[H] = tmp.ul[L] = 1 / zero; tmp.ul[H] = tmp.ul[L] = 1 / zero;
if (arq) { if (arq) {