VecPtrAt
- Macro
- August 22, 2025
Table of Contents
VecPtrAt
VecPtrAtDescription
Value at given index in a vector. It’s strongly recommended to always use this instead of directly accessing the data.
Parameters
| Name | Direction | Description |
|---|---|---|
v | in | Vector to get data from |
idx | in | Index to get data at |
Usage example (Cross-references)
- In
Access.h:44:
/// Get pointer to character at given index
///
#define StrCharPtrAt(str, idx) VecPtrAt(str, idx)
#ifdef __cplusplus
- In
Foreach.h:90:
if ((v)->length > 0) { \
for ((idx) = 0; (idx) < (v)->length; ++(idx)) { \
var = VecPtrAt(v, idx); \
body if ((idx) >= (v)->length) { \
LOG_FATAL("Vector range overflow : Invalid index reached during Foreach iteration."); \
- In
Foreach.h:116:
if ((v)->length > 0) { \
for ((idx) = (v)->length - 1; (idx) < (v)->length; --(idx)) { \
var = VecPtrAt(v, idx); \
{ body } \
if ((idx) >= (v)->length) { \
- In
Foreach.h:339:
); \
} \
var = VecPtrAt(v, idx); \
{ body } \
} \
- In
Vec.Access.c:51:
// Test VecPtrAt function
bool test_vec_ptr_at(void) {
printf("Testing VecPtrAt\n");
// Create a vector of integers
- In
Vec.Access.c:63:
// Get pointers to elements
int* ptr0 = VecPtrAt(&vec, 0);
int* ptr1 = VecPtrAt(&vec, 1);
int* ptr2 = VecPtrAt(&vec, 2);
- In
Vec.Access.c:64:
// Get pointers to elements
int* ptr0 = VecPtrAt(&vec, 0);
int* ptr1 = VecPtrAt(&vec, 1);
int* ptr2 = VecPtrAt(&vec, 2);
- In
Vec.Access.c:65:
int* ptr0 = VecPtrAt(&vec, 0);
int* ptr1 = VecPtrAt(&vec, 1);
int* ptr2 = VecPtrAt(&vec, 2);
// Check values through pointers
printf("Testing BitVecPrefixMatch(NULL, patterns, 1) - should fatal\n");
BitVecs vp = VecInitWithDeepCopy(NULL, BitVecDeinit);
BitVecPush(VecPtrAt(&vp, 0), true);
BitVecPrefixMatch(NULL, &vp);
VecDeinit(&vp);
printf("Testing BitVecSuffixMatch(NULL, patterns, 1) - should fatal\n");
BitVecs vp = VecInitWithDeepCopy(NULL, BitVecDeinit);
BitVecPush(VecPtrAt(&vp, 0), true);
BitVecSuffixMatch(NULL, &vp);
VecDeinit(&vp);
BitVecPush(&source, true);
BitVec* p0 = VecPtrAt(&patterns, 0);
BitVec* p1 = VecPtrAt(&patterns, 1);
BitVec* p2 = VecPtrAt(&patterns, 2);
BitVec* p0 = VecPtrAt(&patterns, 0);
BitVec* p1 = VecPtrAt(&patterns, 1);
BitVec* p2 = VecPtrAt(&patterns, 2);
BitVec* p0 = VecPtrAt(&patterns, 0);
BitVec* p1 = VecPtrAt(&patterns, 1);
BitVec* p2 = VecPtrAt(&patterns, 2);
// Pattern 0: 111 (should not match)
BitVecPush(&source, true);
BitVec* p0 = VecPtrAt(&patterns, 0);
BitVec* p1 = VecPtrAt(&patterns, 1);
BitVec* p2 = VecPtrAt(&patterns, 2);
BitVec* p0 = VecPtrAt(&patterns, 0);
BitVec* p1 = VecPtrAt(&patterns, 1);
BitVec* p2 = VecPtrAt(&patterns, 2);
BitVec* p0 = VecPtrAt(&patterns, 0);
BitVec* p1 = VecPtrAt(&patterns, 1);
BitVec* p2 = VecPtrAt(&patterns, 2);
// Pattern 0: 111 (should not match)