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#include "array.h"
#include "textcode.h"
void fmt_tofrom_array(size_t (*func)(char*,const char*,size_t),
array* dest,array* src) {
size_t needed;
char* x;
if (array_failed(dest) || array_failed(src)) { array_fail(dest); return; }
needed=func(0,array_start(src),array_bytes(src));
if (array_bytes(dest)+needed>needed &&
array_allocate(dest,1,array_bytes(dest)+needed-1)) {
x=((char*)array_start(dest))+array_bytes(dest)-needed;
func(x,array_start(src),array_bytes(src));
} else
array_fail(dest);
}
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