code: plan9front

ref: 5622b0bbd878dbc34045cc6fd37cffa64461eabe
dir: /sys/src/cmd/plot/libplot/erase.c/

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#include "mplot.h"
void erase(void){
	m_swapbuf();
	m_clrwin(clipminx, clipminy, clipmaxx, clipmaxy, e1->backgr);
}