1636 #define CMFAIL               ((char*)(MFAIL)) /* defined for convenience */  macro
3851     if (mm != CMFAIL) {  in mmap_alloc()
3889     if (cp != CMFAIL) {  in mmap_resize()
4054   char* tbase = CMFAIL;  in sys_alloc()
4108     char* br = CMFAIL;  in sys_alloc()
4115       if (base != CMFAIL) {  in sys_alloc()
4141     if (tbase == CMFAIL) {    /* Cope with partial failure */  in sys_alloc()
4142       if (br != CMFAIL) {    /* Try to use/extend the space we did get */  in sys_alloc()
4148             if (end != CMFAIL)  in sys_alloc()
4152               br = CMFAIL;  in sys_alloc()
4157       if (br != CMFAIL) {    /* Use the space we did get */  in sys_alloc()
4168   if (HAVE_MMAP && tbase == CMFAIL) {  /* Try MMAP */  in sys_alloc()
4170     if (mp != CMFAIL) {  in sys_alloc()
4177   if (HAVE_MORECORE && tbase == CMFAIL) { /* Try noncontiguous MORECORE */  in sys_alloc()
4179       char* br = CMFAIL;  in sys_alloc()
4180       char* end = CMFAIL;  in sys_alloc()
4185       if (br != CMFAIL && end != CMFAIL && br < end) {  in sys_alloc()
4195   if (tbase != CMFAIL) {  in sys_alloc()
4356               if (rel_br != CMFAIL && new_br < old_br)  in sys_trim()
5470     if (tbase != CMFAIL) {  in create_mspace()