From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001 From: Vladimir Azarov Date: Tue, 1 Oct 2024 15:47:05 +0200 Subject: Initial version --- src/stdlib/atoll.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 src/stdlib/atoll.c (limited to 'src/stdlib/atoll.c') diff --git a/src/stdlib/atoll.c b/src/stdlib/atoll.c new file mode 100644 index 0000000..b693048 --- /dev/null +++ b/src/stdlib/atoll.c @@ -0,0 +1,17 @@ +#include +#include + +long long atoll(const char *s) +{ + long long n=0; + int neg=0; + while (isspace(*s)) s++; + switch (*s) { + case '-': neg=1; + case '+': s++; + } + /* Compute n as a negative number to avoid overflow on LLONG_MIN */ + while (isdigit(*s)) + n = 10*n - (*s++ - '0'); + return neg ? n : -n; +} -- cgit v1.2.3