avutil/eval-test: Check av_expr_parse_and_eval() for failure and also check it in the fate test

Fixes CID1361940
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavutil/eval-test.c

@@ -139,33 +139,42 @@ int main(int argc, char **argv)
         "clip(0, 0/0, 1)",
         NULL
     };
+    int ret;
 
     for (expr = exprs; *expr; expr++) {
         printf("Evaluating '%s'\n", *expr);
-        av_expr_parse_and_eval(&d, *expr,
+        ret = av_expr_parse_and_eval(&d, *expr,
                                const_names, const_values,
                                NULL, NULL, NULL, NULL, NULL, 0, NULL);
         if (isnan(d))
             printf("'%s' -> nan\n\n", *expr);
         else
             printf("'%s' -> %f\n\n", *expr, d);
+        if (ret < 0)
+            printf("av_expr_parse_and_eval failed\n");
     }
 
-    av_expr_parse_and_eval(&d, "1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
+    ret = av_expr_parse_and_eval(&d, "1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
                            const_names, const_values,
                            NULL, NULL, NULL, NULL, NULL, 0, NULL);
     printf("%f == 12.7\n", d);
-    av_expr_parse_and_eval(&d, "80G/80Gi",
+    if (ret < 0)
+        printf("av_expr_parse_and_eval failed\n");
+    ret = av_expr_parse_and_eval(&d, "80G/80Gi",
                            const_names, const_values,
                            NULL, NULL, NULL, NULL, NULL, 0, NULL);
     printf("%f == 0.931322575\n", d);
+    if (ret < 0)
+        printf("av_expr_parse_and_eval failed\n");
 
     if (argc > 1 && !strcmp(argv[1], "-t")) {
         for (i = 0; i < 1050; i++) {
             START_TIMER;
-            av_expr_parse_and_eval(&d, "1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
+            ret = av_expr_parse_and_eval(&d, "1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
                                    const_names, const_values,
                                    NULL, NULL, NULL, NULL, NULL, 0, NULL);
+            if (ret < 0)
+                printf("av_expr_parse_and_eval failed\n");
             STOP_TIMER("av_expr_parse_and_eval");
         }
     }

tests/ref/fate/eval

 Evaluating ''
 '' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating '1;2'
 '1;2' -> 2.000000
 
@@ -28,45 +29,58 @@ Evaluating '1Gi'
 Evaluating '1gi'
 '1gi' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating '1GiFoo'
 '1GiFoo' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating '1k+1k'
 '1k+1k' -> 2000.000000
 
 Evaluating '1Gi*3foo'
 '1Gi*3foo' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'foo'
 'foo' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'foo('
 'foo(' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'foo()'
 'foo()' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'foo)'
 'foo)' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'sin'
 'sin' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'sin('
 'sin(' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'sin()'
 'sin()' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'sin)'
 'sin)' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'sin 10'
 'sin 10' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'sin(1,2,3)'
 'sin(1,2,3)' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'sin(1 )'
 'sin(1 )' -> 0.841471
 
@@ -76,15 +90,19 @@ Evaluating '1'
 Evaluating '1foo'
 '1foo' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'bar + PI + E + 100f*2 + foo'
 'bar + PI + E + 100f*2 + foo' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating '13k + 12f - foo(1, 2)'
 '13k + 12f - foo(1, 2)' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating '1gi'
 '1gi' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating '1Gi'
 '1Gi' -> 1073741824.000000
 
@@ -127,6 +145,7 @@ Evaluating 'st(1, 1); st(2, 2); st(0, 1); while(lte(ld(0),10), st(3, ld(1)+ld(2)
 Evaluating 'while(0, 10)'
 'while(0, 10)' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'st(0, 1); while(lte(ld(0),100), st(1, ld(1)+ld(0)); st(0, ld(0)+1))'
 'st(0, 1); while(lte(ld(0),100), st(1, ld(1)+ld(0)); st(0, ld(0)+1))' -> 101.000000
 
@@ -151,6 +170,7 @@ Evaluating 'isinf(INF)'
 Evaluating 'floor(NAN)'
 'floor(NAN)' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'floor(123.123)'
 'floor(123.123)' -> 123.000000
 
@@ -202,6 +222,7 @@ Evaluating 'PI^1.23'
 Evaluating 'pow(-1,1.23)'
 'pow(-1,1.23)' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'if(1, 2)'
 'if(1, 2)' -> 2.000000
 
@@ -259,6 +280,7 @@ Evaluating 'bitand(42, 12)'
 Evaluating 'bitand(NAN, 1)'
 'bitand(NAN, 1)' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'between(10, -3, 10)'
 'between(10, -3, 10)' -> 1.000000
 
@@ -268,14 +290,18 @@ Evaluating 'between(-4, -2, -1)'
 Evaluating 'between(1,2)'
 'between(1,2)' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'clip(0, 2, 1)'
 'clip(0, 2, 1)' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'clip(0/0, 1, 2)'
 'clip(0/0, 1, 2)' -> nan
 
+av_expr_parse_and_eval failed
 Evaluating 'clip(0, 0/0, 1)'
 'clip(0, 0/0, 1)' -> nan
 
+av_expr_parse_and_eval failed
 12.700000 == 12.7
 0.931323 == 0.931322575