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Ticket #18: add some const.

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This commit is contained in:
Harald Oehlmann 2016-04-06 22:55:14 +02:00
parent 5ec95153a0
commit 0fcf4cc1ab
3 changed files with 9 additions and 9 deletions
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8
backend/common.c
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@ -73,7 +73,7 @@ void to_upper(unsigned char source[]) {
}
/* Verifies that a string only uses valid characters */
int is_sane(char test_string[], const unsigned char source[], const int length) {
int is_sane(const char test_string[], const unsigned char source[], const int length) {
unsigned int i, j, latch;
unsigned int lt = strlen(test_string);
@ -94,7 +94,7 @@ int is_sane(char test_string[], const unsigned char source[], const int length)
}
/* Returns the position of data in set_string */
int posn(char set_string[], const char data) {
int posn(const char set_string[], const char data) {
unsigned int i, n = strlen(set_string);
for (i = 0; i < n; i++) {
@ -106,7 +106,7 @@ int posn(char set_string[], const char data) {
}
/* Replaces huge switch statements for looking up in tables */
void lookup(char set_string[], const char *table[], const char data, char dest[]) {
void lookup(const char set_string[], const char *table[], const char data, char dest[]) {
unsigned int i, n = strlen(set_string);
for (i = 0; i < n; i++) {
@ -132,7 +132,7 @@ void unset_module(struct zint_symbol *symbol, const int y_coord, const int x_coo
}
/* Expands from a width pattern to a bit pattern */
void expand(struct zint_symbol *symbol, char data[]) {
void expand(struct zint_symbol *symbol, const char data[]) {
unsigned int reader, n = strlen(data);
int writer, i;