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What are the alternatives to switch-case statements in C?
2019 Community Moderator ElectionWhat is the difference between #include <filename> and #include “filename”?Why was the switch statement designed to need a break?With arrays, why is it the case that a[5] == 5[a]?What does “static” mean in C?What is the effect of extern “C” in C++?What is the difference between const int*, const int * const, and int const *?Improve INSERT-per-second performance of SQLite?What does the C ??!??! operator do?What is “:-!!” in C code?stdlib.h not working as intended with atoi() function
-2
Here's my code below:
while ( ( c = getopt( argc, argv, "s:E:b:t:vh" ) ) != -1 )
switch ( c )
case 's':
params.s = atoi( optarg );
break;
case 'E':
params.E = atoi( optarg );
break;
case 'b':
params.b = atoi( optarg );
break;
case 't':
trace_file = optarg;
break;
case 'v':
verbosity = 1;
break;
c
edited Mar 6 at 22:31
Blastfurnace
14k54259
asked Mar 6 at 22:27
Swarnava ChatterjeeSwarnava Chatterjee
1
add a comment |
-2
Here's my code below:
while ( ( c = getopt( argc, argv, "s:E:b:t:vh" ) ) != -1 )
switch ( c )
case 's':
params.s = atoi( optarg );
break;
case 'E':
params.E = atoi( optarg );
break;
case 'b':
params.b = atoi( optarg );
break;
case 't':
trace_file = optarg;
break;
case 'v':
verbosity = 1;
break;
c
edited Mar 6 at 22:31
Blastfurnace
14k54259
asked Mar 6 at 22:27
Swarnava ChatterjeeSwarnava Chatterjee
1
12
Why do you need an alternative? What's wrong with the code you posted?
– UnholySheep
Mar 6 at 22:30
3
You could use a series of if else statements or you could lookup a set of values in a table.
– MoDJ
Mar 6 at 22:35
1
You could use an array of function pointers indexed by the character. But there's really no reason to use anything other than theswitchstatement.
– user3386109
Mar 6 at 22:37
1
Again, you need to state what is wrong with your current code and what you are trying to accomplish.
– Michael Dorgan
Mar 6 at 22:50
add a comment |
-2
-2
-2
Here's my code below:
while ( ( c = getopt( argc, argv, "s:E:b:t:vh" ) ) != -1 )
switch ( c )
case 's':
params.s = atoi( optarg );
break;
case 'E':
params.E = atoi( optarg );
break;
case 'b':
params.b = atoi( optarg );
break;
case 't':
trace_file = optarg;
break;
case 'v':
verbosity = 1;
break;
c
edited Mar 6 at 22:31
Blastfurnace
14k54259
asked Mar 6 at 22:27
Swarnava ChatterjeeSwarnava Chatterjee
1
Here's my code below:
while ( ( c = getopt( argc, argv, "s:E:b:t:vh" ) ) != -1 )
switch ( c )
case 's':
params.s = atoi( optarg );
break;
case 'E':
params.E = atoi( optarg );
break;
case 'b':
params.b = atoi( optarg );
break;
case 't':
trace_file = optarg;
break;
case 'v':
verbosity = 1;
break;
c
c
edited Mar 6 at 22:31
Blastfurnace
14k54259
asked Mar 6 at 22:27
Swarnava ChatterjeeSwarnava Chatterjee
1
edited Mar 6 at 22:31
Blastfurnace
14k54259
asked Mar 6 at 22:27
Swarnava ChatterjeeSwarnava Chatterjee
1
edited Mar 6 at 22:31
Blastfurnace
14k54259
edited Mar 6 at 22:31
Blastfurnace
14k54259
edited Mar 6 at 22:31
Blastfurnace
14k54259
14k54259
asked Mar 6 at 22:27
Swarnava ChatterjeeSwarnava Chatterjee
1
asked Mar 6 at 22:27
Swarnava ChatterjeeSwarnava Chatterjee
1
asked Mar 6 at 22:27
Swarnava ChatterjeeSwarnava Chatterjee
1
1
12
Why do you need an alternative? What's wrong with the code you posted?
– UnholySheep
Mar 6 at 22:30
3
You could use a series of if else statements or you could lookup a set of values in a table.
– MoDJ
Mar 6 at 22:35
1
You could use an array of function pointers indexed by the character. But there's really no reason to use anything other than theswitchstatement.
– user3386109
Mar 6 at 22:37
1
Again, you need to state what is wrong with your current code and what you are trying to accomplish.
– Michael Dorgan
Mar 6 at 22:50
add a comment |
12
Why do you need an alternative? What's wrong with the code you posted?
– UnholySheep
Mar 6 at 22:30
3
You could use a series of if else statements or you could lookup a set of values in a table.
– MoDJ
Mar 6 at 22:35
1
You could use an array of function pointers indexed by the character. But there's really no reason to use anything other than theswitchstatement.
– user3386109
Mar 6 at 22:37
1
Again, you need to state what is wrong with your current code and what you are trying to accomplish.
– Michael Dorgan
Mar 6 at 22:50
12
12
Why do you need an alternative? What's wrong with the code you posted?
– UnholySheep
Mar 6 at 22:30
Why do you need an alternative? What's wrong with the code you posted?
– UnholySheep
Mar 6 at 22:30
3
3
You could use a series of if else statements or you could lookup a set of values in a table.
– MoDJ
Mar 6 at 22:35
You could use a series of if else statements or you could lookup a set of values in a table.
– MoDJ
Mar 6 at 22:35
1
1
You could use an array of function pointers indexed by the character. But there's really no reason to use anything other than the
switch statement.– user3386109
Mar 6 at 22:37
You could use an array of function pointers indexed by the character. But there's really no reason to use anything other than the
switch statement.– user3386109
Mar 6 at 22:37
1
1
Again, you need to state what is wrong with your current code and what you are trying to accomplish.
– Michael Dorgan
Mar 6 at 22:50
Again, you need to state what is wrong with your current code and what you are trying to accomplish.
– Michael Dorgan
Mar 6 at 22:50
add a comment |
1 Answer
1
active
oldest
votes
0
But to answer the question, you could use a bunch of if/else statements:
while ( ( c = getopt( argc, argv, "s:E:b:t:vh" ) ) != -1 )
if ( c == 's' )
params.s = atoi( optarg );
else if ( c == 'E' )
params.E = atoi( optarg );
else if ( c == 'b' )
params.b = atoi( optarg );
else if ( c == 't' )
trace_file = optarg;
else if ( c == 'v' )
verbosity = 1;
else
// always have some kind of default clause
answered Mar 6 at 23:12
binkybinky
45227
add a comment |
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0
But to answer the question, you could use a bunch of if/else statements:
while ( ( c = getopt( argc, argv, "s:E:b:t:vh" ) ) != -1 )
if ( c == 's' )
params.s = atoi( optarg );
else if ( c == 'E' )
params.E = atoi( optarg );
else if ( c == 'b' )
params.b = atoi( optarg );
else if ( c == 't' )
trace_file = optarg;
else if ( c == 'v' )
verbosity = 1;
else
// always have some kind of default clause
answered Mar 6 at 23:12
binkybinky
45227
add a comment |
0
But to answer the question, you could use a bunch of if/else statements:
while ( ( c = getopt( argc, argv, "s:E:b:t:vh" ) ) != -1 )
if ( c == 's' )
params.s = atoi( optarg );
else if ( c == 'E' )
params.E = atoi( optarg );
else if ( c == 'b' )
params.b = atoi( optarg );
else if ( c == 't' )
trace_file = optarg;
else if ( c == 'v' )
verbosity = 1;
else
// always have some kind of default clause
answered Mar 6 at 23:12
binkybinky
45227
add a comment |
0
0
0
But to answer the question, you could use a bunch of if/else statements:
while ( ( c = getopt( argc, argv, "s:E:b:t:vh" ) ) != -1 )
if ( c == 's' )
params.s = atoi( optarg );
else if ( c == 'E' )
params.E = atoi( optarg );
else if ( c == 'b' )
params.b = atoi( optarg );
else if ( c == 't' )
trace_file = optarg;
else if ( c == 'v' )
verbosity = 1;
else
// always have some kind of default clause
answered Mar 6 at 23:12
binkybinky
45227
But to answer the question, you could use a bunch of if/else statements:
while ( ( c = getopt( argc, argv, "s:E:b:t:vh" ) ) != -1 )
if ( c == 's' )
params.s = atoi( optarg );
else if ( c == 'E' )
params.E = atoi( optarg );
else if ( c == 'b' )
params.b = atoi( optarg );
else if ( c == 't' )
trace_file = optarg;
else if ( c == 'v' )
verbosity = 1;
else
// always have some kind of default clause
answered Mar 6 at 23:12
binkybinky
45227
answered Mar 6 at 23:12
binkybinky
45227
answered Mar 6 at 23:12
binkybinky
45227
answered Mar 6 at 23:12
binkybinky
45227
45227
add a comment |
add a comment |
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12
Why do you need an alternative? What's wrong with the code you posted?
– UnholySheep
Mar 6 at 22:30
3
You could use a series of if else statements or you could lookup a set of values in a table.
– MoDJ
Mar 6 at 22:35
1
You could use an array of function pointers indexed by the character. But there's really no reason to use anything other than the
switchstatement.– user3386109
Mar 6 at 22:37
1
Again, you need to state what is wrong with your current code and what you are trying to accomplish.
– Michael Dorgan
Mar 6 at 22:50