From 0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Sat, 12 Feb 2011 00:22:29 -0500 Subject: initial check-in, version 0.5.0 --- src/stdlib/strtoimax.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 src/stdlib/strtoimax.c (limited to 'src/stdlib/strtoimax.c') diff --git a/src/stdlib/strtoimax.c b/src/stdlib/strtoimax.c new file mode 100644 index 00000000..19691091 --- /dev/null +++ b/src/stdlib/strtoimax.c @@ -0,0 +1,25 @@ +#include +#include +#include + +intmax_t strtoimax(const char *s1, char **p, int base) +{ + const unsigned char *s = s1; + int sign = 0; + uintmax_t x; + + /* Initial whitespace */ + for (; isspace(*s); s++); + + /* Optional sign */ + if (*s == '-') sign = *s++; + else if (*s == '+') s++; + + x = strtoumax(s, p, base); + if (x > INTMAX_MAX) { + if (!sign || -x != INTMAX_MIN) + errno = ERANGE; + return sign ? INTMAX_MIN : INTMAX_MAX; + } + return sign ? -x : x; +} -- cgit v1.2.1