Changeset 45105b for molecuilder

Timestamp:

Oct 16, 2008, 9:25:56 AM (17 years ago)

Author:

Frederik Heber <heber@…>

Children:

88e31c

Parents:

93d0ee

Message:

New function IsValidNumber(): checks whether a command line argument os truely a valid number

This is needed for the following commits where each command line arguments makes thorough checks to the number of its subsequent arguments.

Location:

molecuilder/src

Files:

• helpers.cpp (modified) (1 diff)
• helpers.hpp (modified) (1 diff)

molecuilder/src/helpers.cpp

@@ -182 +182 @@
 };
 
+/** Tests whether a given string contains a valid number or not.
+ * \param *string
+ * \return true - is a number, false - is not a valid number
+ */
+bool IsValidNumber( const char *string) 
+{
+  int ptr = 0;
+  if ((string[ptr] == '.') || (string[ptr] == '-')) // number may be negative or start with dot
+    ptr++;
+  if ((string[ptr] >= '0') && (string[ptr] <= '9'))
+    return true;
+  return false;
+};
+
+

molecuilder/src/helpers.hpp

@@ -59 +59 @@
 void Free(void ** buffer, const char* output);
 char *FixedDigitNumber(const int FragmentNumber, const int digits);
+bool IsValidNumber( const char *string);
 
 /********************************************** helpful template functions *********************************/