make string_compare_guy better

Tuprules.tup

@@ -9,7 +9,7 @@ GOFLAGS += -g
 GOFLAGS += -O3
 
 CFLAGS += -Wall
-#CFLAGS += -Werror
+CFLAGS += -Werror
 
 !nim = |> ^ Nim: %f -> %o^ nim c $(NIMFLAGS) -o:%o %f && rm -rf .nimcache |>
 !gccgo = |> ^ GCCGo: %f -> %o^ gccgo $(GOFLAGS) -o %o %f |>

src/string_compare_guy.c

@@ -1,23 +1,21 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdint.h>
 #include <string.h>
 
 // string_compare_guy compares the contents of the left hand side, length with the contents of the
 // right hand side, length and returns 1 if the right hand side (needle) is inside the left hand
 // side (haystack).
 static int string_compare_guy(char* lhs, int llength, char* rhs, int rlength) {
-	char* lnz = malloc(llength + 1);
+	char* lnz = alloca(llength + 1);
 	memcpy(lnz, lhs, llength);
 	lnz[llength] = 0;
 
-	char* rnz = malloc(rlength + 1);
+	char* rnz = alloca(rlength + 1);
 	memcpy(rnz, rhs, rlength);
 	rnz[rlength] = 0;
 
-	int result = strstr(lnz, rhs);
+	int result = (intptr_t) strstr(lnz, rhs);
-
-	free(lnz);
-	free(rnz);
 
 	return result;
 }