Added 'C_C++/strcmp_vs_tricks.c'

C_C++/strcmp_vs_tricks.c

@@ -0,0 +1,28 @@
+/* @BAKE
+    watch 'gcc -o main.out main.c -O3 && objdump -d --disassemble=main main.out'
+   @STOP
+*/
+#include <string.h>
+
+signed main(int argc, char * argv[]) {
+    const char * suffix = argv[1]; // e.g. "cxx"
+    int r = 0;
+
+    /* GCC apparently cant optimze this at all,
+     * strcmp will be called
+     */
+    if(!strcmp(suffix, "cxx")) {
+        r = 1;
+    }
+
+    /* The alternative being something inline,
+     *  as explicitly typed out in cscope for example
+     */
+    if (suffix[0] == 'c'
+    &&  suffix[1] == 'x'
+    &&  suffix[2] == 'x') {
+        r = 1;
+    }
+
+    return r;
+}