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| author |  Tom Willemse | 2022-08-12 19:58:10 -0700 |
|---|---|---|
| committer | Tom Willemse | 2022-08-12 19:58:10 -0700 |
| commit | ad6a98f6ad3cce9d69648360d00d5dcd67d8ca0f (patch) | |
| tree | da76141ff43efe1fa5c725bb1624d3b8f6362d06 /clox/src/vm.c | |
| parent | 38e4c37f0f991122530a708148a6ec0e2a5a3eff (diff) | |
| download | crafting-interpreters-ad6a98f6ad3cce9d69648360d00d5dcd67d8ca0f.tar.gz crafting-interpreters-ad6a98f6ad3cce9d69648360d00d5dcd67d8ca0f.zip | |
Chapter 26.7
Diffstat (limited to 'clox/src/vm.c')
| -rw-r--r-- | clox/src/vm.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/clox/src/vm.c b/clox/src/vm.c index c9556b2..601b128 100644 --- a/clox/src/vm.c +++ b/clox/src/vm.c @@ -163,8 +163,8 @@ static bool isFalsey(Value value) { } static void concatenate() { - ObjString *b = AS_STRING(pop()); - ObjString *a = AS_STRING(pop()); + ObjString *b = AS_STRING(peek(0)); + ObjString *a = AS_STRING(peek(1)); int length = a->length + b->length; char *chars = ALLOCATE(char, length + 1); @@ -173,6 +173,8 @@ static void concatenate() { chars[length] = '\0'; ObjString *result = takeString(chars, length); + pop(); + pop(); push(OBJ_VAL(result)); } |