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#include <assert.h> #include <stdio.h> #include <string.h> int main(int argc, char **argv) { const char *s = CHAR; assert(argc == 2); assert(strlen(s) == 1); if (s[0] != argv[1][0]) fprintf(stderr, "Expected %x, got %x\n", (unsigned int) s[0], (unsigned int) argv[1][0]); assert(s[0] == argv[1][0]); }