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-rw-r--r--include/common.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/common.h b/include/common.h
index 2e5c2a0..c37660c 100644
--- a/include/common.h
+++ b/include/common.h
@@ -93,6 +93,17 @@ static inline int is_power_of_2(unsigned long long n)
* simple_strtoX - convert a hex/dec/oct string into a number
* @snum: buffer to convert
* @error: set to 1 when buffer isn't fully consumed
+ *
+ * These functions are similar to the standard strtoX() functions, but they are
+ * a little bit easier to use if you want to convert full string of digits into
+ * the binary form. The typical usage:
+ *
+ * int error = 0;
+ * unsigned long num;
+ *
+ * num = simple_strtoul(str, &error);
+ * if (error || ... if needed, your check that num is not out of range ...)
+ * error_happened();
*/
#define simple_strtoX(func, type) \
static inline type simple_##func(const char *snum, int *error) \