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Add phony strndup implementation for when we do not have one

This commit is contained in:
Jeffrey Pfau 2014-09-30 22:05:07 -07:00
parent 38762449ad
commit 3cd0b50bce
1 changed files with 15 additions and 3 deletions
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18
src/debugger/parser.c
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@ -1,5 +1,17 @@
#include "parser.h" #include "parser.h"
static inline char* _strndup(const char* start, size_t len) {
#ifdef HAVE_STRNDUP
return strndup(start, len);
#else
// This is suboptimal, but anything recent should have strndup
char* out = malloc((len + 1) * sizeof(char));
strncpy(out, start, len);
out[len] = '\0';
return out;
#endif
}
static struct LexVector* _lexOperator(struct LexVector* lv, char operator) { static struct LexVector* _lexOperator(struct LexVector* lv, char operator) {
struct LexVector* lvNext = malloc(sizeof(struct LexVector)); struct LexVector* lvNext = malloc(sizeof(struct LexVector));
lvNext->token.type = TOKEN_OPERATOR_TYPE; lvNext->token.type = TOKEN_OPERATOR_TYPE;
@ -95,13 +107,13 @@ size_t lexExpression(struct LexVector* lv, const char* string, size_t length) {
case '*': case '*':
case '/': case '/':
lv->token.type = TOKEN_IDENTIFIER_TYPE; lv->token.type = TOKEN_IDENTIFIER_TYPE;
lv->token.identifierValue = strndup(tokenStart, string - tokenStart - 1); lv->token.identifierValue = _strndup(tokenStart, string - tokenStart - 1);
lv = _lexOperator(lv, token); lv = _lexOperator(lv, token);
state = LEX_ROOT; state = LEX_ROOT;
break; break;
case ')': case ')':
lv->token.type = TOKEN_IDENTIFIER_TYPE; lv->token.type = TOKEN_IDENTIFIER_TYPE;
lv->token.identifierValue = strndup(tokenStart, string - tokenStart - 1); lv->token.identifierValue = _strndup(tokenStart, string - tokenStart - 1);
state = LEX_EXPECT_OPERATOR; state = LEX_EXPECT_OPERATOR;
break; break;
default: default:
@ -240,7 +252,7 @@ size_t lexExpression(struct LexVector* lv, const char* string, size_t length) {
break; break;
case LEX_EXPECT_IDENTIFIER: case LEX_EXPECT_IDENTIFIER:
lv->token.type = TOKEN_IDENTIFIER_TYPE; lv->token.type = TOKEN_IDENTIFIER_TYPE;
lv->token.identifierValue = strndup(tokenStart, string - tokenStart); lv->token.identifierValue = _strndup(tokenStart, string - tokenStart);
break; break;
case LEX_EXPECT_OPERATOR: case LEX_EXPECT_OPERATOR:
lvNext = malloc(sizeof(struct LexVector)); lvNext = malloc(sizeof(struct LexVector));