mathomatic/lib/example.c

42 lines
907 B
C

/*
* Real quick and dirty example of usage of the Mathomatic Symbolic Math Library.
* Designed to be as simple as possible, yet work.
* Just displays: "x = 2*sign".
*/
#include <stdio.h>
#include <stdlib.h>
#include "mathomatic.h"
int
main()
{
#if WANT_LEAKS /* Causes memory leaks, wrong code to use, but will work in a pinch. */
char *output;
matho_init();
matho_parse("x^2=4", NULL);
matho_process("solve x", &output);
printf("%s\n", output);
#else /* right code to use */
char *output;
int rv;
if (!matho_init()) {
printf("Not enough memory.\n");
exit(1);
}
matho_parse((char *) "x^2=4", NULL);
rv = matho_process((char *) "solve x", &output);
if (output) {
printf("%s\n", output);
if (rv) {
free(output);
} else {
printf("Error return.\n");
}
}
#endif
exit(0);
}