*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
p->s= next;
return d;
}
-
+
/* named constants */
for(i=0; p->const_name && p->const_name[i]; i++){
if(strmatch(p->s, p->const_name[i])){
return p->const_value[i];
}
}
-
+
p->s= strchr(p->s, '(');
if(p->s==NULL){
av_log(NULL, AV_LOG_ERROR, "Parser: missing ( in \"%s\"\n", next);
return NAN;
}
p->s++; // ")"
-
+
if( strmatch(next, "sinh" ) ) d= sinh(d);
else if( strmatch(next, "cosh" ) ) d= cosh(d);
else if( strmatch(next, "tanh" ) ) d= tanh(d);
}
return d;
-}
+}
static double evalPow(Parser *p){
int sign= (*p->s == '+') - (*p->s == '-');
double (**func2)(void *, double, double), char **func2_name,
void *opaque){
Parser p;
-
+
p.stack_index=100;
p.s= s;
p.const_value= const_value;
p.func2 = func2;
p.func2_name = func2_name;
p.opaque = opaque;
-
+
return evalExpression(&p);
}
#ifdef TEST
-#undef printf
+#undef printf
static double const_values[]={
M_PI,
M_E,
main(){
int i;
printf("%f == 12.7\n", ff_eval("1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)", const_values, const_names, NULL, NULL, NULL, NULL, NULL));
-
+
for(i=0; i<1050; i++){
START_TIMER
ff_eval("1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)", const_values, const_names, NULL, NULL, NULL, NULL, NULL);