Update skeleton

tests/fuzz.py

@@ -21,7 +21,7 @@ REPLACE_DICT = {
     "extern ": "",
     "__restrict": "",
     "long __undefined;": "",
-    "return 0;": "return crc32_context % 128;",
+    "return 0;": "return (unsigned char)(crc32_context);",
     r"__attribute__\s*\(\(.*\)\)": "",
     "_Float128": "double",
     "long double": "double",

tests/reduce-criteria-template.sh

@@ -1,4 +1,56 @@
 #!/usr/bin/env bash
 
+rm -f out*.txt
+
+#ulimit -t 3000                                                                                                                                                                                             
+#ulimit -v 2000000                                                                                                                                                                                          
+
+if
+  [ $FUZZ_ARG = '-i' ] &&\
+  (! clang -pedantic -Wall -Werror=strict-prototypes -O1 -c test_reduced.c  > out.txt 2>&1 ||\
+  grep 'main-return-type' out.txt ||\
+  grep 'conversions than data arguments' out.txt ||\
+  grep 'int-conversion' out.txt ||\
+  grep 'incompatible redeclaration' out.txt ||\
+  grep 'ordered comparison between pointer and zero' out.txt ||\
+  grep 'ordered comparison between pointer and integer' out.txt ||\
+  grep 'eliding middle term' out.txt ||\
+  grep 'end of non-void function' out.txt ||\
+  grep 'invalid in C99' out.txt ||\
+  grep 'specifies type' out.txt ||\
+  grep 'should return a value' out.txt ||\
+  grep 'uninitialized' out.txt ||\
+  grep 'incompatible pointer to' out.txt ||\
+  grep 'incompatible integer to' out.txt ||\
+  grep 'type specifier missing' out.txt ||\
+  grep 'implicit-function-declaration' out.txt ||\
+  grep 'infinite-recursion' out.txt ||\
+  grep 'pointer-bool-conversion' out.txt ||\
+  grep 'non-void function does not return a value' out.txt ||\
+  grep 'too many arguments in call' out.txt ||\
+  ! gcc -Wall -Wextra -O2 test_reduced.c > outa.txt 2>&1 ||\
+  grep 'uninitialized' outa.txt ||\
+  grep 'without a cast' outa.txt ||\
+  grep 'control reaches end' outa.txt ||\
+  grep 'return type defaults' outa.txt ||\
+  grep 'cast from pointer to integer' outa.txt ||\
+  grep 'useless type name in empty declaration' outa.txt ||\
+  grep 'no semicolon at end' outa.txt ||\
+  grep 'type defaults to' outa.txt ||\
+  grep 'too few arguments for format' outa.txt ||\
+  grep 'incompatible pointer' outa.txt ||\
+  grep 'ordered comparison of pointer with integer' outa.txt ||\
+  grep 'declaration does not declare anything' outa.txt ||\
+  grep 'expects type' outa.txt ||\
+  grep 'pointer from integer' outa.txt ||\
+  grep 'incompatible implicit' outa.txt ||\
+  grep 'excess elements in struct initializer' outa.txt ||\
+  grep 'comparison between pointer and integer' outa.txt ||\
+  ! gcc -O1 test_reduced.c > cc_out1.txt 2>&1 ||\
+  ! gcc -O2 test_reduced.c > cc_out2.txt 2>&1)
+then
+  exit 1
+fi
+
 cargo run --manifest-path $PROJECT_DIR/Cargo.toml --release -- --parse test_reduced.c >/dev/null 2>&1 &&\
 ! cargo run --manifest-path $PROJECT_DIR/Cargo.toml --release --bin fuzz -- $FUZZ_ARG test_reduced.c