/* * testConv.c - simple driver to test methods of numconv.h. * * "Copyright (c) 2013-2016 by Fritz Sieker." * * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose, without fee, and without written * agreement is hereby granted, provided that the above copyright notice * and the following two paragraphs appear in all copies of this software. * * IN NO EVENT SHALL THE AUTHOR BE LIABLE TO ANY PARTY FOR DIRECT, * INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE AUTHOR * HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * THE AUTHOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" * BASIS, AND THE AUTHOR NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, * UPDATES, ENHANCEMENTS, OR MODIFICATIONS." */ #include #include #include #include "numconv.h" /** @mainpage Number Conversion in C * \htmlinclude "P1.html" */ /** @file: testConv.c * @brief Driver to test functions of numConv.c (do not modify) * * @details This is a driver program to test the functions * defined in numConv.h and implemented in numConv.c. The program takes up to * three command line parameters and calls one of the methods, then * prints the results. To see how to use the program, execute * ./testConv in a terminal window. This will print a usage * statement defining how to run the program. The 1st parameter of the * program is always a key defining which function to run. * The options are: *
    *
  • i2c convert a number to a character digit (tests * int2char())
  • *
  • c2i convert a character digit to its integer value (tests * char2int())
  • *
  • dnr test the divRem() function
  • *
  • a2i convert a string of characters to a number (tests * ascii2int())
  • *
  • i2a print the digit(s) of a number specified by a string (tests * int2ascii())
  • *
  • f2d convert a string representing a fraction into a double (tests * frac2double())
  • *
*

* The 2nd parameter is always the radix you work in (2..36). The 3rd * parameter depends on the function. *

* A sample execution might be: testConv c2i 16 A *

* All numbers are unsigned. *

* @author Fritz Sieker */ /** Print a usage statement, then exit the program returning a non zero * value, the Linux convention indicating an error */ static void usage() { puts("Usage: testConv i2c radix number"); puts(" testConv c2i radix digit"); puts(" testConv dnr numerator divisor"); puts(" testConv a2i radix (the string is entered through the standard input)"); puts(" testConv i2a radix number"); puts(" testConv f2d radix (the string is entered through the standard input)"); puts("The radix and number parameters are always base 10 numbers."); exit(1); } /** Entry point of the program * @param argc count of arguments, will always be at least 1 * @param argv array of parameters to program argv[0] is the name of * the program, so additional parameters will begin at index 1. * @return 0 the Linux convention for success. */ int main (int argc, char* argv[]) { if (argc < 3) usage(); char* op = argv[1]; int radix = atoi(argv[2]); if (strcmp(op, "c2i") == 0) { if (argc != 4) usage(); char c = argv[3][0]; printf("char2int(%d, '%c') returns %d", radix, c, char2int(radix, c)); } else if (strcmp(op, "i2c") == 0) { if (argc != 4) usage(); int n = atoi(argv[3]); printf("int2char(%d, %d) returns '%c'", radix, n, int2char(radix, n)); } else if (strcmp(op, "dnr") == 0) { if (argc != 4) usage(); int num = atoi(argv[2]); int denom = atoi(argv[3]); int quotient, remainder; printf("divRem(%d, %d) ", num, denom); divRem(num, denom, "ient, &remainder); printf("quotient: %d remainder: %d", quotient, remainder); } else if (strcmp(op, "a2i") == 0) { if (argc != 3) usage(); printf("ascii2int(%d, 0) returns %d", radix, ascii2int(radix, 0)); } else if (strcmp(op, "i2a") == 0) { if (argc != 4) usage(); int n = atoi(argv[3]); printf("int2ascii(%d, %d) returns \"", radix, n); int2ascii(radix, atoi(argv[3])); printf("\""); } else if (strcmp(op, "f2d") == 0) { if (argc != 3) usage(); // Read the "0." getchar(); getchar(); printf("frac2double(%d) returns %f", radix, frac2double(radix)); } else usage(); printf("\n"); return 0; }