diff options
Diffstat (limited to 'wasm2c/examples/fac/main.c')
| -rw-r--r-- | wasm2c/examples/fac/main.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/wasm2c/examples/fac/main.c b/wasm2c/examples/fac/main.c index 5a91b161..30bf5d0a 100644 --- a/wasm2c/examples/fac/main.c +++ b/wasm2c/examples/fac/main.c @@ -5,7 +5,10 @@ int main(int argc, char** argv) { /* Make sure there is at least one command-line argument. */ - if (argc < 2) return 1; + if (argc < 2) { + printf("Invalid argument. Expected '%s NUMBER'\n", argv[0]); + return 1; + } /* Convert the argument from a string to an int. We'll implicitly cast the int to a `u32`, which is what `fac` expects. */ |