1 files changed, 111 insertions, 0 deletions
diff --git a/tcl/compat/strtoll.c b/tcl/compat/strtoll.c
new file mode 100644
index 00000000000..267b6baa3c2
--- /dev/null
+++ b/tcl/compat/strtoll.c
@@ -0,0 +1,111 @@
+/* 
+ * strtoll.c --
+ *
+ *	Source code for the "strtoll" library procedure.
+ *
+ * Copyright (c) 1988 The Regents of the University of California.
+ * Copyright (c) 1994 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ *
+ * RCS: @(#) $Id$
+ */
+
+#include "tcl.h"
+#include "tclPort.h"
+#include <ctype.h>
+
+#define TCL_WIDEINT_MAX	(((Tcl_WideUInt)Tcl_LongAsWide(-1))>>1)
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * strtoll --
+ *
+ *	Convert an ASCII string into an integer.
+ *
+ * Results:
+ *	The return value is the integer equivalent of string.  If endPtr
+ *	is non-NULL, then *endPtr is filled in with the character
+ *	after the last one that was part of the integer.  If string
+ *	doesn't contain a valid integer value, then zero is returned
+ *	and *endPtr is set to string.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+#if TCL_WIDE_INT_IS_LONG
+long long
+#else
+Tcl_WideInt
+#endif
+strtoll(string, endPtr, base)
+    CONST char *string;		/* String of ASCII digits, possibly
+				 * preceded by white space.  For bases
+				 * greater than 10, either lower- or
+				 * upper-case digits may be used.
+				 */
+    char **endPtr;		/* Where to store address of terminating
+				 * character, or NULL. */
+    int base;			/* Base for conversion.  Must be less
+				 * than 37.  If 0, then the base is chosen
+				 * from the leading characters of string:
+				 * "0x" means hex, "0" means octal, anything
+				 * else means decimal.
+				 */
+{
+    register CONST char *p;
+    Tcl_WideInt result = Tcl_LongAsWide(0);
+    Tcl_WideUInt uwResult;
+
+    /*
+     * Skip any leading blanks.
+     */
+
+    p = string;
+    while (isspace(UCHAR(*p))) {
+	p += 1;
+    }
+
+    /*
+     * Check for a sign.
+     */
+
+    errno = 0;
+    if (*p == '-') {
+	p += 1;
+	uwResult = strtoull(p, endPtr, base);
+	if (errno != ERANGE) {
+	    if (uwResult > TCL_WIDEINT_MAX+1) {
+		errno = ERANGE;
+		return Tcl_LongAsWide(-1);
+	    } else if (uwResult > TCL_WIDEINT_MAX) {
+		return ~((Tcl_WideInt)TCL_WIDEINT_MAX);
+	    } else {
+		result = -((Tcl_WideInt) uwResult);
+	    }
+	}
+    } else {
+	if (*p == '+') {
+	    p += 1;
+	}
+	uwResult = strtoull(p, endPtr, base);
+	if (errno != ERANGE) {
+	    if (uwResult > TCL_WIDEINT_MAX) {
+		errno = ERANGE;
+		return Tcl_LongAsWide(-1);
+	    } else {
+		result = uwResult;
+	    }
+	}
+    }
+    if ((result == 0) && (endPtr != 0) && (*endPtr == p)) {
+	*endPtr = (char *) string;
+    }
+    return result;
+}