67 lines
1.6 KiB
Plaintext
67 lines
1.6 KiB
Plaintext
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__device__ int cstring_length(const char* s) {
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int len = 0;
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while (s[len]) len++;
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return len;
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}
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__device__ int cstring_find(const char* s, const char* sub) {
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int i, j;
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int n = cstring_length(s);
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int m = cstring_length(sub);
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if (m == 0) return 0;
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for (i = 0; i <= n - m; i++) {
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for (j = 0; j < m; j++) {
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if (s[i + j] != sub[j]) break;
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}
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if (j == m) return i;
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}
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return -1;
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}
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__device__ int cstring_to_ull(const char* s, unsigned* val) {
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unsigned result = 0;
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int i = 0;
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if (s[0] == '0' && (s[1] == 'x' || s[1] == 'X')) {
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i = 2;
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}
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if (s[i] == '\0') return 1;
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for (; s[i]; i++) {
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char c = s[i];
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int digit;
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if (c >= '0' && c <= '9') {
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digit = c - '0';
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} else if (c >= 'a' && c <= 'f') {
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digit = 10 + (c - 'a');
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} else if (c >= 'A' && c <= 'F') {
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digit = 10 + (c - 'A');
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} else {
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return 1;
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}
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result = result * 16 + digit;
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}
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*val = result;
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return 0;
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}
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__device__ void extract_substring(const char* src, int start, char* dest, int dest_size) {
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int i = 0;
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while (src[start + i] && i < dest_size - 1) {
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dest[i] = src[start + i];
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i++;
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}
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dest[i] = '\0';
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}
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__device__ void concat(const char* s1, const char* s2, char* out, int outSize) {
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int i = 0, j = 0;
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while (s1[i] && i < outSize - 1) {
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out[i] = s1[i];
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i++;
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}
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if (i < outSize - 1) {
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out[i] = ' ';
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i++;
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}
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while (s2[j] && i < outSize - 1) {
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out[i] = s2[j];
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i++; j++;
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}
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out[i] = '\0';
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}
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