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1 #ifndef KSTRING_H
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2 #define KSTRING_H
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3
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4 #include <stdlib.h>
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5 #include <string.h>
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6
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7 #ifndef kroundup32
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8 #define kroundup32(x) (--(x), (x)|=(x)>>1, (x)|=(x)>>2, (x)|=(x)>>4, (x)|=(x)>>8, (x)|=(x)>>16, ++(x))
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9 #endif
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10
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11 #ifndef KSTRING_T
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12 #define KSTRING_T kstring_t
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13 typedef struct __kstring_t {
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14 size_t l, m;
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15 char *s;
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16 } kstring_t;
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17 #endif
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18
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19 static inline int kputs(const char *p, kstring_t *s)
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20 {
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21 int l = strlen(p);
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22 if (s->l + l + 1 >= s->m) {
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23 s->m = s->l + l + 2;
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24 kroundup32(s->m);
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25 s->s = (char*)realloc(s->s, s->m);
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26 }
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27 strcpy(s->s + s->l, p);
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28 s->l += l;
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29 return l;
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30 }
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31
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32 static inline int kputc(int c, kstring_t *s)
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33 {
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34 if (s->l + 1 >= s->m) {
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35 s->m = s->l + 2;
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36 kroundup32(s->m);
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37 s->s = (char*)realloc(s->s, s->m);
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38 }
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39 s->s[s->l++] = c;
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40 s->s[s->l] = 0;
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41 return c;
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42 }
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43
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44 int ksprintf(kstring_t *s, const char *fmt, ...);
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45
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46 #endif
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