SYNTAX

       #include "stralloc.h"

       int stralloc_ready(&sa,len);
       int stralloc_readyplus(&sa,len);

       int stralloc_copy(&sa,&sa2);
       int stralloc_copys(&sa,buf);
       int stralloc_copyb(&sa,buf,len);

       int stralloc_cat(&sa,&sa2);
       int stralloc_cats(&sa,buf);
       int stralloc_catb(&sa,buf,len);

       int stralloc_append(&sa,buf);
       int stralloc_0(&sa);

       int stralloc_starts(&sa,buf);

       stralloc sa = {0};
       stralloc sa2 = {0};
       unsigned int len;
       char *buf;


DESCRIPTION

       A stralloc variable holds a string in dynamically allocated space.
       String length is limited only by memory.  String contents are
       unrestricted.

       The stralloc structure has three components: sa.s is a pointer to the
       string, or 0 if it is not allocated; sa.len is the number of bytes in
       the string, if it is allocated; sa.a is the number of bytes allocated
       for the string, if it is allocated.  A stralloc variable should be
       initialized to {0}, meaning unallocated.

       stralloc_ready makes sure that sa has enough space allocated for len
       characters.  It allocates extra space if necessary.

       stralloc_readyplus makes sure that sa has enough space allocated for
       len characters more than its current length.  If sa is unallocated,
       stralloc_readyplus is the same as stralloc_ready.

       stralloc_copy copies sa2 to sa, allocating space if necessary.  Here
       sa2 is an allocated stralloc variable.

       stralloc_copys copies a 0-terminated string, buf, to sa, without the 0.

       stralloc_copyb copies len characters from buf to sa.

       stralloc_cat appends sa2 to sa, allocating space if necessary.  If sa
       is unallocated, stralloc_cat is the same as stralloc_copy.

       guarantees that sa is allocated.


SEE ALSO

       alloc(3), error(3)



                                       3                       qlibs(stralloc)

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