22   IWXSTR *xstr = malloc(sizeof(*xstr));  in iwxstr_new2()  local
23   if (!xstr) return 0;  in iwxstr_new2()
24   xstr->ptr = malloc(siz);  in iwxstr_new2()
25   if (!xstr->ptr) {  in iwxstr_new2()
26     free(xstr);  in iwxstr_new2()
29   xstr->size = 0;  in iwxstr_new2()
30   xstr->asize = siz;  in iwxstr_new2()
31   xstr->ptr[0] = '\0';  in iwxstr_new2()
32   return xstr;  in iwxstr_new2()
39 void iwxstr_destroy(IWXSTR *xstr) {  in iwxstr_destroy()  argument
40   if (!xstr) return;  in iwxstr_destroy()
41   free(xstr->ptr);  in iwxstr_destroy()
42   free(xstr);  in iwxstr_destroy()
45 void iwxstr_clear(IWXSTR *xstr) {  in iwxstr_clear()  argument
46   assert(xstr);  in iwxstr_clear()
47   xstr->size = 0;  in iwxstr_clear()
50 iwrc iwxstr_cat(IWXSTR *xstr, const void *buf, size_t size) {  in iwxstr_cat()  argument
51   size_t nsize = xstr->size + size + 1;  in iwxstr_cat()
52   if (xstr->asize < nsize) {  in iwxstr_cat()
53     while (xstr->asize < nsize) {  in iwxstr_cat()
54       xstr->asize <<= 1;  in iwxstr_cat()
55       if (xstr->asize < nsize) {  in iwxstr_cat()
56         xstr->asize = nsize;  in iwxstr_cat()
59     char *ptr = realloc(xstr->ptr, xstr->asize);  in iwxstr_cat()
63     xstr->ptr = ptr;  in iwxstr_cat()
65   memcpy(xstr->ptr + xstr->size, buf, size);  in iwxstr_cat()
66   xstr->size += size;  in iwxstr_cat()
67   xstr->ptr[xstr->size] = '\0';  in iwxstr_cat()
71 iwrc iwxstr_cat2(IWXSTR *xstr, const char *buf) {  in iwxstr_cat2()  argument
72   return buf ? iwxstr_cat(xstr, buf, strlen(buf)) : 0;  in iwxstr_cat2()
75 iwrc iwxstr_unshift(IWXSTR *xstr, const void *buf, size_t size) {  in iwxstr_unshift()  argument
76   size_t nsize = xstr->size + size + 1;  in iwxstr_unshift()
77   if (xstr->asize < nsize) {  in iwxstr_unshift()
78     while (xstr->asize < nsize) {  in iwxstr_unshift()
79       xstr->asize <<= 1;  in iwxstr_unshift()
80       if (xstr->asize < nsize) {  in iwxstr_unshift()
81         xstr->asize = nsize;  in iwxstr_unshift()
84     char *ptr = realloc(xstr->ptr, xstr->asize);  in iwxstr_unshift()
88     xstr->ptr = ptr;  in iwxstr_unshift()
90   if (xstr->size) {  in iwxstr_unshift()
92     memmove(xstr->ptr + size, xstr->ptr, xstr->size);  in iwxstr_unshift()
94   memcpy(xstr->ptr, buf, size);  in iwxstr_unshift()
95   xstr->size += size;  in iwxstr_unshift()
96   xstr->ptr[xstr->size] = '\0';  in iwxstr_unshift()
100 void iwxstr_shift(IWXSTR *xstr, size_t shift_size) {  in iwxstr_shift()  argument
104   if (shift_size > xstr->size) {  in iwxstr_shift()
105     shift_size = xstr->size;  in iwxstr_shift()
107   if (xstr->size > shift_size) {  in iwxstr_shift()
108     memmove(xstr->ptr, xstr->ptr + shift_size, xstr->size - shift_size);  in iwxstr_shift()
110   xstr->size -= shift_size;  in iwxstr_shift()
111   xstr->ptr[xstr->size] = '\0';  in iwxstr_shift()
114 static iwrc iwxstr_vaprintf(IWXSTR *xstr, const char *format, va_list ap) {  in iwxstr_vaprintf()  argument
137           rc = iwxstr_cat(xstr, tmp, strlen(tmp));  in iwxstr_vaprintf()
147           rc = iwxstr_cat(xstr, tbuf, (size_t) tlen);  in iwxstr_vaprintf()
161           rc = iwxstr_cat(xstr, tbuf, (size_t) tlen);  in iwxstr_vaprintf()
177           rc = iwxstr_cat(xstr, tbuf, (size_t) tlen);  in iwxstr_vaprintf()
180           rc = iwxstr_cat(xstr, "%", 1);  in iwxstr_vaprintf()
185       rc = iwxstr_cat(xstr, format, 1);  in iwxstr_vaprintf()
193 iwrc iwxstr_printf(IWXSTR *xstr, const char *format, ...) {  in iwxstr_printf()  argument
196   iwrc rc  = iwxstr_vaprintf(xstr, format, ap);  in iwxstr_printf()
201 char *iwxstr_ptr(IWXSTR *xstr) {  in iwxstr_ptr()  argument
202   return xstr->ptr;  in iwxstr_ptr()
205 size_t iwxstr_size(IWXSTR *xstr) {  in iwxstr_size()  argument
206   return xstr->size;  in iwxstr_size()