V_ques.c

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#include <grass/vask.h>


int V_ques(void *src, int var_type, int row, int col, int length)
{
    union target targetptr;

    targetptr.i = src;

    if (V__.NUM_ANSW >= MAX_ANSW) {
        V_error("Too many questions in call to V_ques");
        return (-1);
    }
    if ((row < 0) || (row >= MAX_LINE)) {
        V_error("Illegal row (%d) in call to V_ques", row);
        return (-1);
    }
    if ((col < 0) || (col >= 80)) {
        V_error("Illegal column (%d) in call to V_ques", col);
        return (-1);
    }
    if (length <= 0) {
        V_error("Negative length in call to V_ques");
        return (-1);
    }
    if (length + col > 80)
        length = 80 - col;

    if ((var_type == 's') || (var_type == 'i') || (var_type == 'f')
        || (var_type == 'l') || (var_type == 'd')) {
        V__.usr_answ[V__.NUM_ANSW].targetptr = targetptr;
        V__.usr_answ[V__.NUM_ANSW].var_type = var_type;
        V__.usr_answ[V__.NUM_ANSW].row = row;
        V__.usr_answ[V__.NUM_ANSW].col = col;
        V__.usr_answ[V__.NUM_ANSW].length = length;
        V__.usr_answ[V__.NUM_ANSW].decimal_places = V__.decimal_places;

        V__.NUM_ANSW++;
        return (0);
    }
    else {
        V_error("Illegal variable type in call to V_ques");
        return (-1);
    }
}