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[src/trunk]: src/usr.bin/make make(1): make cond.c ready for WARNS=6



details:   https://anonhg.NetBSD.org/src/rev/84739c0625d2
branches:  trunk
changeset: 955646:84739c0625d2
user:      rillig <rillig%NetBSD.org@localhost>
date:      Mon Oct 05 19:56:08 2020 +0000

description:
make(1): make cond.c ready for WARNS=6

diffstat:

 usr.bin/make/cond.c |  36 ++++++++++++++++++------------------
 1 files changed, 18 insertions(+), 18 deletions(-)

diffs (146 lines):

diff -r 8628c562fdea -r 84739c0625d2 usr.bin/make/cond.c
--- a/usr.bin/make/cond.c       Mon Oct 05 19:39:30 2020 +0000
+++ b/usr.bin/make/cond.c       Mon Oct 05 19:56:08 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cond.c,v 1.160 2020/10/05 19:27:47 rillig Exp $        */
+/*     $NetBSD: cond.c,v 1.161 2020/10/05 19:56:08 rillig Exp $        */
 
 /*
  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -93,7 +93,7 @@
 #include "dir.h"
 
 /*     "@(#)cond.c     8.2 (Berkeley) 1/2/94"  */
-MAKE_RCSID("$NetBSD: cond.c,v 1.160 2020/10/05 19:27:47 rillig Exp $");
+MAKE_RCSID("$NetBSD: cond.c,v 1.161 2020/10/05 19:56:08 rillig Exp $");
 
 /*
  * The parsing of conditional expressions is based on this grammar:
@@ -201,7 +201,7 @@
  *     whether the parsed argument is passed to the default function.
  *
  * Return the length of the argument. */
-static int
+static size_t
 ParseFuncArg(const char **pp, Boolean doEval, const char *func,
             char **out_arg) {
     const char *p = *pp;
@@ -280,7 +280,7 @@
 
 /* Test whether the given variable is defined. */
 static Boolean
-FuncDefined(int argLen MAKE_ATTR_UNUSED, const char *arg)
+FuncDefined(size_t argLen MAKE_ATTR_UNUSED, const char *arg)
 {
     char *freeIt;
     Boolean result = Var_Value(arg, VAR_CMD, &freeIt) != NULL;
@@ -297,14 +297,14 @@
 
 /* See if the given target is being made. */
 static Boolean
-FuncMake(int argLen MAKE_ATTR_UNUSED, const char *arg)
+FuncMake(size_t argLen MAKE_ATTR_UNUSED, const char *arg)
 {
     return Lst_Find(create, CondFindStrMatch, arg) != NULL;
 }
 
 /* See if the given file exists. */
 static Boolean
-FuncExists(int argLen MAKE_ATTR_UNUSED, const char *arg)
+FuncExists(size_t argLen MAKE_ATTR_UNUSED, const char *arg)
 {
     Boolean result;
     char *path;
@@ -322,7 +322,7 @@
 
 /* See if the given node exists and is an actual target. */
 static Boolean
-FuncTarget(int argLen MAKE_ATTR_UNUSED, const char *arg)
+FuncTarget(size_t argLen MAKE_ATTR_UNUSED, const char *arg)
 {
     GNode *gn = Targ_FindNode(arg);
     return gn != NULL && !OP_NOP(gn->type);
@@ -331,7 +331,7 @@
 /* See if the given node exists and is an actual target with commands
  * associated with it. */
 static Boolean
-FuncCommands(int argLen MAKE_ATTR_UNUSED, const char *arg)
+FuncCommands(size_t argLen MAKE_ATTR_UNUSED, const char *arg)
 {
     GNode *gn = Targ_FindNode(arg);
     return gn != NULL && !OP_NOP(gn->type) && !Lst_IsEmpty(gn->commands);
@@ -507,7 +507,7 @@
     const char *form;          /* Form of if */
     size_t formlen;            /* Length of form */
     Boolean doNot;             /* TRUE if default function should be negated */
-    Boolean (*defProc)(int, const char *); /* Default function to apply */
+    Boolean (*defProc)(size_t, const char *); /* Default function to apply */
 } ifs[] = {
     { "def",   3, FALSE, FuncDefined },
     { "ndef",  4, TRUE,  FuncDefined },
@@ -673,13 +673,13 @@
     return t;
 }
 
-static int
+static size_t
 ParseEmptyArg(const char **linePtr, Boolean doEval,
              const char *func MAKE_ATTR_UNUSED, char **argPtr)
 {
     void *val_freeIt;
     const char *val;
-    int magic_res;
+    size_t magic_res;
 
     /* We do all the work here and return the result as the length */
     *argPtr = NULL;
@@ -692,7 +692,7 @@
 
     if (val == var_Error) {
        free(val_freeIt);
-       return -1;
+       return (size_t)-1;
     }
 
     /* A variable is empty when it just contains spaces... 4/15/92, christos */
@@ -708,7 +708,7 @@
 }
 
 static Boolean
-FuncEmpty(int arglen, const char *arg MAKE_ATTR_UNUSED)
+FuncEmpty(size_t arglen, const char *arg MAKE_ATTR_UNUSED)
 {
     /* Magic values ahead, see ParseEmptyArg. */
     return arglen == 1;
@@ -720,8 +720,8 @@
     static const struct fn_def {
        const char *fn_name;
        size_t fn_name_len;
-       int (*fn_parse)(const char **, Boolean, const char *, char **);
-       Boolean (*fn_eval)(int, const char *);
+       size_t (*fn_parse)(const char **, Boolean, const char *, char **);
+       Boolean (*fn_eval)(size_t, const char *);
     } fn_defs[] = {
        { "defined",  7, ParseFuncArg,  FuncDefined },
        { "make",     4, ParseFuncArg,  FuncMake },
@@ -734,7 +734,7 @@
     const struct fn_def *fn_def;
     Token t;
     char *arg = NULL;
-    int arglen;
+    size_t arglen;
     const char *cp = par->p;
     const char *cp1;
 
@@ -748,9 +748,9 @@
            break;
 
        arglen = fn_def->fn_parse(&cp, doEval, fn_def->fn_name, &arg);
-       if (arglen <= 0) {
+       if (arglen == 0 || arglen == (size_t)-1) {
            par->p = cp;
-           return arglen < 0 ? TOK_ERROR : TOK_FALSE;
+           return arglen == 0 ? TOK_FALSE : TOK_ERROR;
        }
        /* Evaluate the argument using the required function. */
        t = !doEval || fn_def->fn_eval(arglen, arg);



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