31 lines
606 B
C
31 lines
606 B
C
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/*
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* emcc -g0 -O3 -s SIDE_MODULE=1 -s STRICT=1 -s WASM=1 -s ONLY_MY_CODE=1 -o fib.c.wasm fib.c
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* gcc -g0 -O3 fib.c -o fib.c.elf
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*/
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#include <stdint.h>
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#define WASM_EXPORT __attribute__((used)) __attribute__((visibility ("default")))
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WASM_EXPORT
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uint32_t fib(uint32_t n)
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{
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if(n < 2) {
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return n;
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}
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return fib(n-1) + fib(n-2);
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}
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int parseInt(char* str) {
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int res = 0;
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for (int i = 0; str[i] != '\0'; ++i) {
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res = res * 10 + str[i] - '0';
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}
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return res;
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}
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WASM_EXPORT
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int main(int args, char* argv[]) {
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uint32_t n = parseInt(argv[1]);
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return fib(n);
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}
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