test_2d.tc

test_2d.tc — Phase 1 2D-char-array smoke test

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// test_2d.tc — Phase 1 2D-char-array smoke test
//
// Exercises:
//   • declaration: char names[7][16]
//   • element access: names[i][j]
//   • row reference passed to a UDF char[] parameter (show_row)
//   • row reference passed to strcpy / strcat / strcmp
//
// Out of scope (Phase 2): sprintf("%s", names[i]) — needs %s recognizer
// to route through emitArrayRef. Use a UDF as a workaround.

char names[7][16];      // 7 day names, 16 chars each = 112 chars (heap)
char tmp[32];           // 1D control buffer

void show_row(char s[]) {
    addLog(s);          // pass row to a function expecting char[]
}

int main() {
    strcpy(names[0], "Sonntag");
    strcpy(names[1], "Montag");
    strcpy(names[2], "Dienstag");
    strcpy(names[3], "Mittwoch");
    strcpy(names[4], "Donnerstag");
    strcpy(names[5], "Freitag");
    strcpy(names[6], "Samstag");

    // Element-by-element access
    char first = names[1][0];        // = 'M'
    char third = names[1][2];        // = 'n'
    sprintf(tmp, "names[1][0]=%c names[1][2]=%c", first, third);
    addLog(tmp);

    // Pass row (constant index) to UDF
    show_row(names[3]);              // → "Mittwoch"
    show_row(names[6]);              // → "Samstag"

    // Pass row (variable index) to UDF in a loop
    for (int i = 0; i < 7; i = i + 1) {
        show_row(names[i]);
    }

    // strcat to a row
    strcpy(tmp, "today: ");
    strcat(tmp, names[2]);           // pass row to strcat
    addLog(tmp);

    // strcmp comparing two rows
    int cmp = strcmp(names[1], names[2]);
    sprintf(tmp, "Mo vs Di cmp=%d", cmp);
    addLog(tmp);

    return 0;
}