histptr           353 ext/gd/libgd/gd_topal.c   register histptr histp;
histptr           477 ext/gd/libgd/gd_topal.c   histptr histp;
histptr           722 ext/gd/libgd/gd_topal.c   histptr histp;
histptr          1221 ext/gd/libgd/gd_topal.c   register histptr cachep;	/* pointer into main cache array */
histptr          1305 ext/gd/libgd/gd_topal.c   register histptr cachep;
histptr          1380 ext/gd/libgd/gd_topal.c   histptr cachep;