kaguya
37 lines
816 B
C
37 lines
816 B
C
#include <assert.h>
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#include <stdint.h>
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#include <string.h>
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#include <limits.h>
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int main(void){
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// ffsl
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assert(ffsl(0x8000) == 16);
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assert(ffsl(0) == 0);
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#if UINTPTR_MAX == UINT64_MAX
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assert(ffsl(LLONG_MAX - 1) == 2);
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assert(ffsl(LLONG_MAX) == 1);
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#endif
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assert(ffsl(LONG_MIN) == (long)(sizeof(long) * CHAR_BIT));
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assert(ffsl(LONG_MIN + 1) == 1);
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for (int i = 1; i < 0x1000; i++) {
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assert(ffsl(i) - 1 == __builtin_ctz(i));
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}
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// ffsll
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assert(ffsll(0x8000) == 16);
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assert(ffsll(0) == 0);
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#if UINTPTR_MAX == UINT64_MAX
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assert(ffsll(LLONG_MAX - 1) == 2);
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assert(ffsll(LLONG_MAX) == 1);
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#endif
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assert(ffsll(LLONG_MIN) == (long long)(sizeof(long long) * CHAR_BIT));
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assert(ffsll(LLONG_MIN + 1) == 1);
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for (int i = 1; i < 0x1000; i++) {
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assert(ffsll(i) - 1 == __builtin_ctz(i));
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}
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return 0;
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}
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