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ngspice
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Allow deleting a simulation variable (created by option command). 

Remove crash.
This commit is contained in:
Holger Vogt 2023-08-18 15:13:25 +02:00
parent 17ed4e21a0
commit e6275d1aec
1 changed files with 4 additions and 2 deletions
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6
src/frontend/variable.c
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@ -655,7 +655,7 @@ void cp_remvar(char *varname)
case US_SIMVAR: case US_SIMVAR:
/* variables processed by if_option(ft_curckt->ci_ckt, ...) */ /* variables processed by if_option(ft_curckt->ci_ckt, ...) */
fprintf(stderr, "it's a US_SIMVAR!\n"); fprintf(stderr, "Warning: Unsetting '%s', a variable set by an 'option' command!\n", varname);
if (ft_curckt) { if (ft_curckt) {
for (p = &ft_curckt->ci_vars; *p; p = &(*p)->va_next) for (p = &ft_curckt->ci_vars; *p; p = &(*p)->va_next)
if (eq(varname, (*p)->va_name)) if (eq(varname, (*p)->va_name))
@ -663,7 +663,9 @@ void cp_remvar(char *varname)
if (*p) { if (*p) {
struct variable *u = *p; struct variable *u = *p;
*p = u->va_next; *p = u->va_next;
tfree(u); u->va_next = NULL;
free_struct_variable(u);
return;
} }
} }
break; break;