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help for argv argc
Post 302149093 by return_user on Tuesday 4th of December 2007 09:48:23 PM
12-04-2007
help for argv argc
Hi C experts,
I have the following code for adding command line option for a program
int main (argc, argv)
int argc;
char *argv[];
{
char *mem_type; //memory type
char *name; //name of the memory
int addr; //address bits
int data; //data bits
int banks; //number of banks
int num_entries; //memory depth
int i; //internal variable
int cren; //cren variable for special cases
int y_add; //y-address bits for ldigram6tri
int x_add; //x-address bits for ldigram6tri
int sdata; //sdata bits for ldigram6tri
//Storing the memory models command line argument data into internal data variable.
for (i = 1; i < argc; i++)
{
if (!strcmp ((argv[i]) , "-type"))
mem_type = argv[i+1];
/*
.other 2 options similar to above stncmp
.
*/
else if (argc < 9)
{
printf("\nWrong options and/or arguments used.\n");
printf("Please check Syntax and try again.\n\n");
print_message(argv[0]);
return 0;
}
}
//Selector for the memory type:
if (!strcmp(mem_type, "ra2_met")) { gen_samsung_mem_ra2_met(name, num_entries, addr, data);
}
else if (!strcmp (mem_type, "ra2g_met")) { gen_samsung_mem_ra2_met(name, num_entries, addr, data);
}
else { printf("Invalid mem_type selected\n");
printf("Please check Syntax and try again.\n\n");
print_message(argv[0]);
return 10;
}
return 0;
}
/*******sub***/
void print_message (argv_t1)
char argv_t1[];
{
printf("Usage: %s <required/options : arguments>\n\n", argv_t1);
printf("required : arguments\n\n");
printf(" -help : print out command line options.\n\n\n");
}
but always get one error or another.
In function ‘main':
warning: passing argument 1 of ‘strcmp' makes pointer from integer without a cast
warning: passing argument 1 of ‘strcmp' makes pointer from integer without a cast
warning: passing argument 1 of ‘strcmp' makes pointer from integer without a cast
implicit declaration of function ‘print_message'
At top level:
warning: conflicting types for ‘print_message'
warning: previous implicit declaration of ‘print_message' was here
What would be the best way to compare the command line arguments so that I don't get the errors/warning?
Thank you very much for the help.
I have the following code for adding command line option for a program
int main (argc, argv)
int argc;
char *argv[];
{
char *mem_type; //memory type
char *name; //name of the memory
int addr; //address bits
int data; //data bits
int banks; //number of banks
int num_entries; //memory depth
int i; //internal variable
int cren; //cren variable for special cases
int y_add; //y-address bits for ldigram6tri
int x_add; //x-address bits for ldigram6tri
int sdata; //sdata bits for ldigram6tri
//Storing the memory models command line argument data into internal data variable.
for (i = 1; i < argc; i++)
{
if (!strcmp ((argv[i]) , "-type"))
mem_type = argv[i+1];
/*
.other 2 options similar to above stncmp
.
*/
else if (argc < 9)
{
printf("\nWrong options and/or arguments used.\n");
printf("Please check Syntax and try again.\n\n");
print_message(argv[0]);
return 0;
}
}
//Selector for the memory type:
if (!strcmp(mem_type, "ra2_met")) { gen_samsung_mem_ra2_met(name, num_entries, addr, data);
}
else if (!strcmp (mem_type, "ra2g_met")) { gen_samsung_mem_ra2_met(name, num_entries, addr, data);
}
else { printf("Invalid mem_type selected\n");
printf("Please check Syntax and try again.\n\n");
print_message(argv[0]);
return 10;
}
return 0;
}
/*******sub***/
void print_message (argv_t1)
char argv_t1[];
{
printf("Usage: %s <required/options : arguments>\n\n", argv_t1);
printf("required : arguments\n\n");
printf(" -help : print out command line options.\n\n\n");
}
but always get one error or another.
In function ‘main':
warning: passing argument 1 of ‘strcmp' makes pointer from integer without a cast
warning: passing argument 1 of ‘strcmp' makes pointer from integer without a cast
warning: passing argument 1 of ‘strcmp' makes pointer from integer without a cast
implicit declaration of function ‘print_message'
At top level:
warning: conflicting types for ‘print_message'
warning: previous implicit declaration of ‘print_message' was here
What would be the best way to compare the command line arguments so that I don't get the errors/warning?
Thank you very much for the help.
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LEARN ABOUT OPENSOLARIS
isaexec
isaexec(3C) Standard C Library Functions isaexec(3C) NAME
isaexec - invoke isa-specific executable SYNOPSIS
#include <unistd.h> int isaexec(const char *path, char *const argv[], char *const envp[]); DESCRIPTION
The isaexec() function takes the path specified as path and breaks it into directory and file name components. It enquires from the running system the list of supported instruction set architectures; see isalist(5). The function traverses the list for an executable file in named subdirectories of the original directory. When such a file is located, execve() is invoked with argv[] and envp[]. See exec(2). RETURN VALUES
If no file is located, isaexec() returns ENOENT. Other return values are the same as for execve(). EXAMPLES
Example 1 Example of isaexec() function. On a system whose isalist is sparcv7 sparc the program int main(int argc, char *argv[], char *envp[]) { return (isaexec("/bin/thing", argv, envp)); } will look first for an executable file named /bin/sparcv7/thing, then for an executable file named /bin/sparc/thing. It will invoke execve() on the first executable file it finds named thing. On that same system, a program called /u/bin/tofu can cause either /u/bin/sparcv7/tofu or /u/bin/sparc/tofu to be invoked using the follow- ing code: int main(int argc, char *argv[], char *envp[]) { return (isaexec(getexecname(), argv, envp)); } ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |Safe | +-----------------------------+-----------------------------+ |Interface Stability |Stable | +-----------------------------+-----------------------------+ SEE ALSO
exec(2), getexecname(3C), attributes(5), isalist(5) SunOS 5.11 20 Mar 1998 isaexec(3C)