?? print4.cpp
字號:
/*
print4.cpp - Read multiple files and print them to the screen
using a for loop.
*/
#include <stdio.h>
#include <string.h>
char *GetProgName (char *);
void ReadIn (FILE *ifp, FILE *ofp);
main(int argc, char *argv[])
{
char *ProgName;
FILE *fp;
ProgName = GetProgName (argv[0]);
if (argc < 2)
{
fprintf (stderr, "%s: Please enter a file name\n", ProgName);
return (-1);
}
for (int x = 1; x < argc; ++x)
{
if ((fp = fopen (argv[x], "rb")) == NULL)
{
fprintf (stderr, "%s: Cannot open %s\n", ProgName, argv[x]);
continue;
}
ReadIn (fp, stdout);
fclose (fp);
}
return (0);
}
char *GetProgName (char *Path)
{
char *s;
if ((s = strrchr (Path, '\\')) != NULL ||
(s = strrchr (Path, '/')) != 0)
{
return (s + 1);
}
else
{
return (Path);
}
}
void ReadIn (FILE *ifp, FILE *ofp)
{
char Line[256];
while (fgets(Line, sizeof(Line), ifp) != NULL)
{
fputs (Line, ofp);
}
}
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