From 8d27ab131e0829fb847c93529628e4751b356b5f Mon Sep 17 00:00:00 2001
From: Jonathan Bradley <jcb@pikum.xyz>
Date: Wed, 6 Dec 2023 15:28:00 -0500
Subject: add str2num for uint8_t

---
 src/helpers.cpp | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

(limited to 'src/helpers.cpp')

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;
-- 
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