add str2num for uint8_t

1 files changed, 36 insertions, 0 deletions

diff --git a/src/helpers.cpp b/src/helpers.cpp
index 22be4de..e08906b 100644
--- a/src/helpers.cpp
+++ b/src/helpers.cpp
@@ -114,6 +114,42 @@ STR2NUM_ERROR str2num(uint16_t &i, char const *s, int base) {
   return SUCCESS;
 }
 
+STR2NUM_ERROR str2num(int8_t &i, char const *s, int base) {
+  char *end;
+  long l;
+  errno = 0;
+  l = strtol(s, &end, base);
+  if (errno == ERANGE && l == LONG_MAX) {
+    return OVERFLOW;
+  }
+  if (errno == ERANGE && l == LONG_MIN) {
+    return UNDERFLOW;
+  }
+  if (*s == '\0' || *end != '\0') {
+    return INCONVERTIBLE;
+  }
+  i = l;
+  return SUCCESS;
+}
+
+STR2NUM_ERROR str2num(uint8_t &i, char const *s, int base) {
+  char *end;
+  long l;
+  errno = 0;
+  l = strtoul(s, &end, base);
+  if (errno == ERANGE && l == LONG_MAX) {
+    return OVERFLOW;
+  }
+  if (errno == ERANGE && l == LONG_MIN) {
+    return UNDERFLOW;
+  }
+  if (*s == '\0' || *end != '\0') {
+    return INCONVERTIBLE;
+  }
+  i = l;
+  return SUCCESS;
+}
+
 STR2NUM_ERROR str2num(float &f, char const *s, char *&pEnd) {
   float l;
   errno = 0;