snprintf — Format a string and place it in a buffer


int snprintf (char * buf,
 size_t size,
 const char * fmt,


char * buf

The buffer to place the result into

size_t size

The size of the buffer, including the trailing null space

const char * fmt

The format string to use


Arguments for the format string


The return value is the number of characters which would be generated for the given input, excluding the trailing null, as per ISO C99. If the return is greater than or equal to size, the resulting string is truncated.

See the vsnprintf documentation for format string extensions over C99.