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general: add -Wshorten-64-to-32 compiler flag & suppress warnings

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(ticket #351, props Axel Waggershauser)
This commit is contained in:
gitlost
2026-02-26 18:23:21 +00:00
parent 9ef5bc7298
commit bd33953fc1
24 changed files with 106 additions and 102 deletions
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16
backend/code.c
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@@ -1,7 +1,7 @@
/* code.c - Handles Code 39, 39+, 93 and VIN */
/*
libzint - the open source barcode library
Copyright (C) 2008-2025 Robin Stuart <rstuart114@gmail.com>
Copyright (C) 2008-2026 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@@ -174,7 +174,7 @@ INTERNAL int zint_code39(struct zint_symbol *symbol, unsigned char source[], int
if (symbol->symbology == BARCODE_LOGMARS || symbol->symbology == BARCODE_HIBC_39) {
/* LOGMARS and HIBC use wider 'wide' bars than normal Code 39 */
counter = d - dest;
counter = (int) (d - dest);
for (i = 0; i < counter; i++) {
if (dest[i] == '2') {
dest[i] = '3';
@@ -186,7 +186,7 @@ INTERNAL int zint_code39(struct zint_symbol *symbol, unsigned char source[], int
printf("Barspaces: %.*s\n", (int) (d - dest), dest);
}
z_expand(symbol, dest, d - dest);
z_expand(symbol, dest, (int) (d - dest));
if (symbol->output_options & COMPLIANT_HEIGHT) {
if (symbol->symbology == BARCODE_LOGMARS) {
@@ -261,7 +261,7 @@ INTERNAL int zint_excode39(struct zint_symbol *symbol, unsigned char source[], i
memcpy(b, EC39Ctrl[source[i]], 2);
b += EC39Ctrl[source[i]][1] ? 2 : 1;
}
if (b - buffer > 86) {
if ((int) (b - buffer) > 86) {
return z_errtxtf(ZINT_ERROR_TOO_LONG, symbol, 317,
"Input too long, requires %d symbol characters (maximum 86)", (int) (b - buffer));
}
@@ -275,7 +275,7 @@ INTERNAL int zint_excode39(struct zint_symbol *symbol, unsigned char source[], i
}
/* Then send the buffer to the C39 function */
if ((error_number = zint_code39(symbol, buffer, b - buffer)) >= ZINT_ERROR) {
if ((error_number = zint_code39(symbol, buffer, (int) (b - buffer))) >= ZINT_ERROR) {
return error_number;
}
@@ -341,7 +341,7 @@ INTERNAL int zint_code93(struct zint_symbol *symbol, unsigned char source[], int
}
/* Now we can check the true length of the barcode */
h = b - buffer;
h = (int) (b - buffer);
if (h > 123) {
return z_errtxtf(ZINT_ERROR_TOO_LONG, symbol, 332,
"Input too long, requires %d symbol characters (maximum 123)", h);
@@ -394,7 +394,7 @@ INTERNAL int zint_code93(struct zint_symbol *symbol, unsigned char source[], int
memcpy(d, "1111411", 7);
d += 7;
z_expand(symbol, dest, d - dest);
z_expand(symbol, dest, (int) (d - dest));
if (symbol->output_options & COMPLIANT_HEIGHT) {
/* ANSI/AIM BC5-1995 Section 2.6 minimum height 0.2" or 15% of symbol length, whichever is greater
@@ -504,7 +504,7 @@ INTERNAL int zint_vin(struct zint_symbol *symbol, unsigned char source[], int le
memcpy(d, C39Table[43], 9);
d += 9;
z_expand(symbol, dest, d - dest);
z_expand(symbol, dest, (int) (d - dest));
z_hrt_cpy_nochk(symbol, source, length);