scc

Simple C99 Compiler
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commit 4feeded5c41b279f3e1f3d96d0878c9adb9c52ee
parent 2f1a6880fb5e5d5408c217809ff203a9b942a9b4
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sat,  8 Mar 2014 20:28:33 +0100

add newtag() function

Centralize where tag names are generated, so the error control is done only
in a place.

Diffstat:
decl.c | 19++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/decl.c b/decl.c @@ -64,6 +64,14 @@ directdcl(register struct ctype *tp, unsigned char ns) } } +static unsigned char +newtag(void) +{ + if (nr_tags == NS_TAG + NR_MAXSTRUCTS) + error("too much structs/unions/enum defined"); + return ++nr_tags; +} + static struct symbol * aggregate(register struct ctype *tp) { @@ -83,17 +91,14 @@ aggregate(register struct ctype *tp) *tp = *aux; } else { tp->tag = sym->name; - tp->ns = ++nr_tags; + tp->ns = newtag(); sym->ctype = *tp; } - next(); /* This way of handling nr_tag */ - } else { /* is incorrect once is incorrect*/ - tp->ns = ++nr_tags; /* it will be incorrect forever*/ + next(); + } else { + tp->ns = newtag(); } - if (nr_tags == NS_TAG + NR_MAXSTRUCTS) - error("too much structs/unions/enum defined"); - return sym; }