src/include/btrace.h


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#ifndef BTRACE_H
#define BTRACE_H
#ifdef __cplusplus
extern "C" {
#endif
    int boundarytrace(int x1, int y1, int x2, int y2, number_t * xpos,
		      number_t * ypos);
    int boundarytraceall(number_t * xpos, number_t * ypos);
#ifdef __cplusplus
}
#endif
#endif