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Provide an integer implementation of decimal_digits().

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Signed-off-by: Henner Zeller <h.zeller@acm.org>
This commit is contained in:
Henner Zeller 2021-02-01 11:23:44 -08:00
parent 7d014902ec
commit 5eff0b73ae
1 changed files with 9 additions and 2 deletions
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11
frontends/aiger/aigerparse.cc
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@ -55,8 +55,15 @@ inline int32_t from_big_endian(int32_t i32) {
#define log_debug2(...) ; #define log_debug2(...) ;
//#define log_debug2(...) log_debug(__VA_ARGS__) //#define log_debug2(...) log_debug(__VA_ARGS__)
static int decimal_digits(unsigned n) { static int decimal_digits(uint32_t n) {
return n > 1 ? ceil(log10(n)) : 1; static uint32_t digit_cutoff[9] = {
10, 100, 1000, 10000, 100000,
1000000, 10000000, 100000000, 1000000000
};
for (int i = 0; i < 9; ++i) {
if (n < digit_cutoff[i]) return i + 1;
}
return 10;
} }
struct ConstEvalAig struct ConstEvalAig