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more C89-fixes

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going down to strict -ansi c89 is quite overkill (no 'inline',
and /* */-style comments).
But with these fixes, the code compiles with the stringent flags:
 -Wextra -Wold-style-definition -Wmissing-prototypes
 -Wmissing-declarations and -Wdeclaration-after-statement

Change-Id: I36222f8f505bcba3d9d1309ad98b5ccb04ec17e3
This commit is contained in:
Pascal Massimino
2011-03-25 15:04:11 -07:00
parent 0de013b3a4
commit f8db5d5d1c
20 changed files with 63 additions and 42 deletions
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11
examples/cwebp.c
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@ -276,6 +276,7 @@ static int ReadJPEG(FILE* in_file, WebPPicture* const pic) {
#ifdef WEBP_HAVE_PNG
static void PNGAPI error_function(png_structp png, png_const_charp dummy) {
(void)dummy; // remove variable-unused warning
longjmp(png_jmpbuf(png), 1);
}
@ -284,9 +285,9 @@ static int ReadPNG(FILE* in_file, WebPPicture* const pic) {
png_infop info;
int color_type, bit_depth, interlaced;
int num_passes;
int p, y;
int p;
int ok = 0;
png_uint_32 width, height;
png_uint_32 width, height, y;
int stride;
uint8_t* rgb = NULL;
@ -446,7 +447,7 @@ static void PrintValues(const int values[4]) {
fprintf(stderr,"|\n");
}
void PrintExtraInfo(const WebPPicture* const pic, int short_output) {
static void PrintExtraInfo(const WebPPicture* const pic, int short_output) {
const WebPAuxStats* const stats = pic->stats;
if (short_output) {
fprintf(stderr, "%7d %2.2f\n", stats->coded_size, stats->PSNR[3]);
@ -553,7 +554,7 @@ static int DumpPicture(const WebPPicture* const picture, const char* PGM_name) {
//-----------------------------------------------------------------------------
static void HelpShort() {
static void HelpShort(void) {
printf("Usage:\n\n");
printf(" cwebp [options] -q quality input.png -o output.webp\n\n");
printf("where quality is between 0 (poor) to 100 (very good).\n");
@ -561,7 +562,7 @@ static void HelpShort() {
printf("Try -longhelp for an exhaustive list of advanced options.\n");
}
static void HelpLong() {
static void HelpLong(void) {
printf("Usage:\n");
printf(" cwebp [-preset <...>] [options] in_file [-o out_file]\n\n");
printf("If input size (-s) for an image is not specified, "