util.c File Reference

Implementations of various utility functions. More...

#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <cctype>
#include <cassert>
#include <ctime>
#include "util.h"
#include "gabbie.h"

Defines
#define	MAX_LINE_SIZE   256
#define	EXCHANGE(a, b)
Functions
void	PrintNumber (double d)
	Print a number, in a nice format.
void	Error (bool condition, char *message)
	If condition is true, print message and exit.
void	Error (bool condition, char *message, char *a1)
void	Mesg (char *message)
	Print a message to stderr.
void	Mesg (char *message, char *a1)
void	Mesg (char *message, int a1)
FILE *	FileOpen (char *fileName, char *mode)
	Open a file, print an advisory message if the open fails.
char *	GetLine (FILE *fp)
bool	HasDigits (char *s)
	Return true if this string has any digits.
void	Sort (void *array[], int size, int(*compare)(void *, void *))
	In-place quicksort of an array of pointers.
void	StrLower (char *p)
	Force all chars in string to lower case.
bool	IsNormalChar (char c)
	True if char is alpha, numeric, or '-'.

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Detailed Description

Implementations of various utility functions.

Author:

Bryan Jacobson, 2006.

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Define Documentation

#define EXCHANGE (  a, b   )

Value: { temp_p = array[a]; array[a] = array[b]; \ array[b] = temp_p; }

#define MAX_LINE_SIZE   256

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Function Documentation

void Error (  bool  condition, char *  message, char *  a1 )

void Error (  bool  condition, char *  message )

If condition is true, print message and exit.

FILE* FileOpen (  char *  fileName, char *  mode )

Open a file, print an advisory message if the open fails.

char* GetLine (  FILE *  fp  )

Read line from a file, return a pointer to the contents of the line. Notes: 1. Returns pointer to a static buffer that is overwritten when the function is called again, or when GetTreeLine is called. 2. Reads up to MAX_LINE chars. 3. Returns NULL pointer at end-of-file.

bool HasDigits (  char *  s  )

Return true if this string has any digits.

bool IsNormalChar (  char  c  )

True if char is alpha, numeric, or '-'.

void Mesg (  char *  message, int  a1 )

void Mesg (  char *  message, char *  a1 )

void Mesg (  char *  message  )

Print a message to stderr.

void PrintNumber (  double  d  )

Print a number, in a nice format.

void Sort (  void *  array[], int  size, int(*)(void *, void *)  compare )

In-place quicksort of an array of pointers. Sort() performs an in-place quicksort. compare must be a pointer to a function that takes 2 void * arguments, and returns 0 if they are equal, >0 if the first arg is greater, and <0 if first arg is less.

void StrLower (  char *  p  )

Force all chars in string to lower case.

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