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authorLennart Weller <lhw@ring0.de>2017-07-27 09:55:47 +0000
committerLennart Weller <lhw@ring0.de>2017-07-27 09:55:47 +0000
commita133c9c3b637b1dbe7b5b053f7e2572c1950cead (patch)
tree2207939a88e96bca329457f40a9d9d18ab659dc1 /src/inlined.h
parentNew upstream version 1.6.0+dfsg (diff)
downloadnetdata-upstream/1.7.0+dfsg.tar.xz
netdata-upstream/1.7.0+dfsg.zip
New upstream version 1.7.0+dfsgupstream/1.7.0+dfsg
Diffstat (limited to '')
-rw-r--r--src/inlined.h97
1 files changed, 97 insertions, 0 deletions
diff --git a/src/inlined.h b/src/inlined.h
index 0dc11c95..f1812ba1 100644
--- a/src/inlined.h
+++ b/src/inlined.h
@@ -123,6 +123,103 @@ static inline unsigned long long str2ull(const char *s) {
return n;
}
+static inline long long str2ll(const char *s, char **endptr) {
+ int negative = 0;
+
+ if(unlikely(*s == '-')) {
+ s++;
+ negative = 1;
+ }
+ else if(unlikely(*s == '+'))
+ s++;
+
+ long long n = 0;
+ char c;
+ for(c = *s; c >= '0' && c <= '9' ; c = *(++s)) {
+ n *= 10;
+ n += c - '0';
+ }
+
+ if(unlikely(endptr))
+ *endptr = (char *)s;
+
+ if(unlikely(negative))
+ return -n;
+ else
+ return n;
+}
+
+static inline long double str2ld(const char *s, char **endptr) {
+ int negative = 0;
+ const char *start = s;
+ unsigned long long integer_part = 0;
+ unsigned long decimal_part = 0;
+ size_t decimal_digits = 0;
+
+ switch(*s) {
+ case '-':
+ s++;
+ negative = 1;
+ break;
+
+ case '+':
+ s++;
+ break;
+
+ case 'n':
+ if(s[1] == 'a' && s[2] == 'n') {
+ if(endptr) *endptr = (char *)&s[3];
+ return NAN;
+ }
+ break;
+
+ case 'i':
+ if(s[1] == 'n' && s[2] == 'f') {
+ if(endptr) *endptr = (char *)&s[3];
+ return INFINITY;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ while (*s >= '0' && *s <= '9') {
+ integer_part = (integer_part * 10) + (*s - '0');
+ s++;
+ }
+
+ if(unlikely(*s == '.')) {
+ decimal_part = 0;
+ s++;
+
+ while (*s >= '0' && *s <= '9') {
+ decimal_part = (decimal_part * 10) + (*s - '0');
+ s++;
+ decimal_digits++;
+ }
+ }
+
+ if(unlikely(*s == 'e' || *s == 'E'))
+ return strtold(start, endptr);
+
+ if(unlikely(endptr))
+ *endptr = (char *)s;
+
+ if(unlikely(negative)) {
+ if(unlikely(decimal_digits))
+ return -((long double)integer_part + (long double)decimal_part / powl(10.0, decimal_digits));
+ else
+ return -((long double)integer_part);
+ }
+ else {
+ if(unlikely(decimal_digits))
+ return (long double)integer_part + (long double)decimal_part / powl(10.0, decimal_digits);
+ else
+ return (long double)integer_part;
+ }
+}
+
#ifdef NETDATA_STRCMP_OVERRIDE
#ifdef strcmp
#undef strcmp