sprintf — printf-style formatted output to a string variable
sprintf and sprintfk write printf-style formatted output to a string variable, similarly to the C function sprintf(). sprintf runs at i-time only, while sprintfk runs both at initialization and performance time.
Sfmt -- format string, has the same format as in printf() and other similar C functions, except length modifiers (l, ll, h, etc.) are not supported. The following conversion specifiers are allowed:
d, i, o, u, x, X, e, E, f, F, g, G, c, s
xarg1, xarg2, ... -- input arguments (max. 30) for format, should be i-rate for all conversion specifiers except %s, which requires a string argument. sprintfk also allows k-rate number arguments, but these should still be valid at init time as well (unless sprintfk is skipped with igoto). Integer formats like %d round the input values to the nearest integer.