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help the compiler create more efficient code

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Patch from Michael <virtual_worlds@gmx.de>
Full text: As usual I have modified only minor things to remove warnigs when compiled as C++ code, have added some const-specifiers where possible to help the compiler create more efficient code and added some static-specifiers to make functions invisible to other modules.
This commit is contained in:
Robin Stuart 2017-05-29 10:43:47 +01:00
parent d08237d06e
commit b3a1b24d18
29 changed files with 275 additions and 298 deletions
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10
backend/pdf417.c
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@ -557,7 +557,7 @@ void numbprocess(int *chainemc, int *mclength, char chaine[], int start, int len
}
/* 366 */
int pdf417(struct zint_symbol *symbol, unsigned char chaine[], int length) {
static int pdf417(struct zint_symbol *symbol, unsigned char chaine[], const size_t length) {
int i, k, j, indexchaine, indexliste, mode, longueur, loop, mccorrection[520], offset;
int total, chainemc[2700], mclength, c1, c2, c3, dummy[35], codeerr;
char codebarre[140], pattern[580];
@ -670,7 +670,7 @@ int pdf417(struct zint_symbol *symbol, unsigned char chaine[], int length) {
symbol->option_2 = 30;
}
if (symbol->option_2 < 1) {
symbol->option_2 = 0.5 + sqrt((longueur + k) / 3.0);
symbol->option_2 =(int)(0.5 + sqrt((longueur + k) / 3.0));
}
if (((longueur + k) / symbol->option_2) > 90) {
/* stop the symbol from becoming too high */
@ -820,14 +820,14 @@ int pdf417(struct zint_symbol *symbol, unsigned char chaine[], int length) {
}
symbol->rows = (mclength / symbol->option_2);
symbol->width = strlen(pattern);
symbol->width =(int)strlen(pattern);
/* 843 */
return codeerr;
}
/* 345 */
int pdf417enc(struct zint_symbol *symbol, unsigned char source[], int length) {
int pdf417enc(struct zint_symbol *symbol, unsigned char source[], const size_t length) {
int codeerr, error_number;
error_number = 0;
@ -877,7 +877,7 @@ int pdf417enc(struct zint_symbol *symbol, unsigned char source[], int length) {
}
/* like PDF417 only much smaller! */
int micro_pdf417(struct zint_symbol *symbol, unsigned char chaine[], int length) {
int micro_pdf417(struct zint_symbol *symbol, unsigned char chaine[], const size_t length) {
int i, k, j, indexchaine, indexliste, mode, longueur, mccorrection[50], offset;
int total, chainemc[2700], mclength, dummy[5], codeerr;
char codebarre[100], pattern[580];