va_list ap;
char buf[100];
- assert(chart);
+ if ( ! chart )
+ return ;
pl_savestate_r(chart->lp);
pl_ffontsize_r(chart->lp,chart->font_size * 1.5);
chart_rounded_tick( (smax - smin) / (double) ticks);
- assert (ch) ;
-
+ if ( !ch )
+ return;
ch->y_max = ceil ( smax / tick_interval ) * tick_interval ;
ch->y_min = floor ( smin / tick_interval ) * tick_interval ;