NAME

     soldout_buffer, bufcasecmp, bufcmp, bufcmps, bufdup, bufgrow, bufnew, bufnullterm,
     bufprintf, bufput, bufputs, bufputc, bufrelease, bufreset, bufset, bufslurp, buftoi,
     vbufprintf — buffer handling functions for soldout

SYNOPSIS

     #include <buffer.h>

     #define CONST_BUF(name, string)
     #define VOLATILE_BUF(name, strname)
     #define BUFPUTSL(output, literal)

     int
     bufcasecmp(const struct buf *a, const struct buf *b);

     int
     bufcmp(const struct buf *a, const struct buf *b);

     int
     bufcmps(const struct buf *a, const char *b);

     struct buf *
     bufdup(const struct buf *src, size_t dupunit);

     int
     bufgrow(struct buf *buf, size_t sz);

     struct buf *
     bufnew(size_t unit);

     void
     bufnullterm(struct buf *buf);

     void
     bufprintf(struct buf *buf, const char *fmt, ...);

     void
     bufput(struct buf *buf, const void *data, size_t len);

     void
     bufputs(struct buf *buf, const char *str);

     void
     bufputc(struct buf *buf, char c);

     void
     bufrelease(struct buf *buf);

     void
     bufreset(struct buf *buf);

     void
     bufset(struct buf **dest, struct buf *src);

     void
     bufslurp(struct buf *buf, size_t len);

     int
     buftoi(struct buf *buf, size_t offset_i, size_t *offset_o);

     void
     vbufprintf(struct buf *buf, const char *fmt, va_list ap);

     extern long buffer_stat_nb;
     extern size_t buffer_stat_alloc_bytes;

DESCRIPTION

   Variables
     Compile time options.  Statistics are kept about memory usage.

     buffer_stat_nb
     show how many buffers were created.

     buffer_stat_alloc_bytes
     show how many bytes were allocated.

   Types
     struct buf
     character array buffer.  Consists of the following fields:

     char * data
             actual character data.

     size_t size
             size of the string.

     size_t asize
             allocated size (0 = volatile buffer).

     size_t unit
             reallocation unit size (0 = read-only buffer).

     int ref
             reference count.

   Macros
     CONST_BUF
     create a global buffer name from a string literal string.

     VOLATILE_BUF
     create a volatile buffer name on the stack from a string strname.

     BUFPUTSL
     optimized bufputs() of a string literal.

   Functions
     bufcasecmp()
     compare two buffers ignoring case.

     bufcmp()
     compare two buffers.

     bufcmps()
     compare a buffer to a string.

     bufdup()
     duplicate a buffer src.

     bufgrow()
     increase the allocated size to the given value.

     bufnew()
     create a new buffer.

     bufnullterm()
     terminate the string array by NUL (making a C-string).

     bufprintf()
     print formatted output to a buffer buf.

     bufput()
     append raw data to a buffer buf.

     bufputs()
     append a NUL-terminated string str to a buffer buf.

     bufputc()
     append a single char c to a buffer buf.

     bufrelease()
     decrease the reference count and free the buffer buf if needed.

     bufreset()
     free internal data of the buffer buf.

     bufset()
     safely assign a buffer to another.

     bufslurp()
     remove a given number of bytes from the head of the array.

     buftoi()
     convert the numbers at the beginning of the buffer buf into an int.

     vbufprintf()
     stdarg(3) variant of formatted printing into a buffer buf.

RETURN VALUES

     The bufcasecmp(), bufcmp() and bufcmps() functions return an integer less than, equal to, or
     greater than zero if a is found, respectively, to be less than, to match, or be greater than
     b.

     The bufdup() and bufnew() functions return a struct buf * on success; on error they return
     NULL.

     The bufgrow() function returns on success 1; on error - 0.

     The bufnullterm(), bufprintf(), bufput(), bufputs(), bufputc(), bufrelease(), bufreset(),
     bufset(), bufslurp() and vbufprintf() functions do not return a value.

     The buftoi() function return the converted value.

SEE ALSO

     soldout(3), stdarg(3)

AUTHORS

     The soldout library was written by Natasha "Kerensikova" Porte <natacha@instinctive.eu>.
     Manual page was originally written by Massimo Manghi <mxmanghi@apache.org>, and rewritten to
     mdoc format by Svyatoslav Mishyn <juef@openmailbox.org>.