1 /*****************************************************************************/
5 /* String stack used for program settings */
9 /* (C) 2004 Ullrich von Bassewitz */
11 /* D-70794 Filderstadt */
12 /* EMail: uz@cc65.org */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
43 /*****************************************************************************/
45 /*****************************************************************************/
49 const char* SS_Get (const StrStack* S)
50 /* Get the value on top of a string stack */
53 return S->Stack[S->Count-1];
58 void SS_Set (StrStack* S, const char* Val)
59 /* Set the value on top of a string stack */
62 xfree (S->Stack[S->Count-1]);
63 S->Stack[S->Count-1] = xstrdup (Val);
68 void SS_Drop (StrStack* S)
69 /* Drop a value from a string stack */
72 xfree (S->Stack[--S->Count]);
77 void SS_Push (StrStack* S, const char* Val)
78 /* Push a value onto a string stack */
80 CHECK (S->Count < sizeof (S->Stack) / sizeof (S->Stack[0]));
81 S->Stack[S->Count++] = xstrdup (Val);