Differences

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--- number_parsing [2017/03/21 16:05] – created korshun
+++ number_parsing [2017/03/21 16:09] – korshun
@@ Line 2: / Line 2: @@
 ACSUtils provides functions to convert strings to numbers.
-Simple functions that simply return 0 on error:
+===== Simple functions =====
+These simply return 0 on error:
   * [[functions:atoi]]
   * [[functions:atof]]
-Complex functions:
+<code>
+atoi("123") -> 123
+atof("123.456") -> 123.456
+atoi("abc") -> 0
+</code>
+===== Complex functions =====
+These return error status and result, and allow specifying an arbitrary base:
   * [[functions:ParseInt]]
   * [[functions:ParseFixed]]
+Error statuses are:
+  * ''PARSENUMBER_SUCCESS'' -- number successfully parsed, you can use the result
+  * ''PARSENUMBER_OVERFLOW'' -- the number is too big to fit into a variable, the result will be either [[constants:INT_MAX]] or [[constants:INT_MIN]].
+  * ''PARSENUMBER_BADFORMAT'' - the number could not be parsed at all. You **may not** use the result. ''r2'' is unchanged.

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