diff options
| author | Rich Felker <dalias@aerifal.cx> | 2011-02-12 00:22:29 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-02-12 00:22:29 -0500 |
| commit | 0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch) | |
| tree | 6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/stdlib/strtoimax.c | |
| download | musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.gz musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.xz musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.zip | |
initial check-in, version 0.5.0 v0.5.0
Diffstat (limited to 'src/stdlib/strtoimax.c')
| -rw-r--r-- | src/stdlib/strtoimax.c | 25 |
1 files changed, 25 insertions, 0 deletions
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 <inttypes.h> +#include <errno.h> +#include <ctype.h> + +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; +} |