Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - language - init.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30712-26d8f09ef9) Lines: 1138 1487 76.5 %
Date: 2026-02-26 09:24:10 Functions: 133 162 82.1 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
bl_rotleft 66114105
bl_rotright 60464678
blockbalance 2857117976
blockdelete 1579663508
blockheight 11890488748
blockinsert 1732007861
cgetg_copy_avma 1062788701
cgetlist_avma 620
chk_gc_upto 0
clone_lock 370765705
clone_unlock 311512539
clone_unlock_deep 59317453
clonesearch 741290631
copy_bin 471943632
copy_bin_canon 16
dbg_fill_stack 0
dbg_gc_upto 0
dbg_stack 0
debug_stack 0
dflt_err_recover 0
dflt_pari_quit 0
dflt_sigint_fun 0
dochk_gc_upto 0
err_init 13850
err_init_msg 13715
err_recover 13055
errname 27109
export_add 59
export_del 24
export_get 1500
exportall 6
f_getheap 6664
fix_height 3088187685
fix_size 747672
gc_all_unsafe 27367303
gc_dec 6033779984
gc_slice_unsafe 327241779
gc_stack_update 1238909029
gclone 237400376
gclone_refc 0
gcloneref 37888
gcopy 4794293451
gcopy_av0 4025750364
gcopy_av0_canon 32
gcopy_avma 3383983211
gcopy_lg 742
gdisplay 3703
gerepile 0
getabstime 1883
getdebugvar 371513
getheap 84
getstack 7
gettime 3696
getwalltime 0
gp_context_restore 13130
gp_context_save 145758
gsizebyte 175
gsizeclone 237400875
gsizeclone_i 3477323133
gsizeword 2214450
gunclone 388462294
gunclone_deep 3278923173
icopy_avma_canon 12
init_universal_constants 1883
is_in_block 234038891
list_internal_copy 7019
listassign 7019
listcopy 730
listinit 0
msgtimer 0
name_numerr 0
new_chunk_resize 18
newblock 238246339
numerr_name 27109
obj_check 6033215
obj_checkbuild 1506937
obj_checkbuild_padicprec 539
obj_checkbuild_prec 568477
obj_checkbuild_realprec 399100
obj_free 187257
obj_init 2532846
obj_insert 2661152
obj_insert_shallow 173523
obj_reinit 42
os_signal 20653
pari_add_defaults_module 1883
pari_add_module 1873
pari_close 1873
pari_close_blocks 365073
pari_close_export 1873
pari_close_opts 1873
pari_daemon 76
pari_err 56827
pari_err2GEN 56815
pari_err2str 21859
pari_err_display 13076
pari_err_last 87496
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_init_blocks 373302
pari_init_defaults 1883
pari_init_errcatch 373726
pari_init_export 1883
pari_init_functions 1883
pari_init_opts 1883
pari_init_timer 1883
pari_mainstack_alloc 373841
pari_mainstack_free 373831
pari_mainstack_malloc 373841
pari_mainstack_mextend 495208
pari_mainstack_mfree 373831
pari_mainstack_mreset 495208
pari_mainstack_resize 445
pari_mainstack_setsize 495208
pari_mainstack_use 373327
pari_sig_init 3756
pari_sighandler 6
pari_sigint 0
pari_stackcheck_init 375154
pari_thread_alloc 371513
pari_thread_close 371949
pari_thread_free 371513
pari_thread_get_global 371513
pari_thread_init 373278
pari_thread_set_global 371312
pari_thread_start 371477
pari_thread_valloc 0
pari_version 7
pari_warn 774
paristack_alloc 1883
paristack_newrsize 452
paristack_resize 0
paristack_setsize 0
parivstack_reset 121367
parivstack_resize 0
pop_entree_block 390025
rndus 221323
setalldebug 1911
setdebug 127
setdebugvar 371309
shiftaddress 3089097695
shiftaddress_canon 24
taille0 4025836900
taille0_canon 32
timer 0
timer2 0
timer_aux 221323
timer_delay 111565
timer_get 1889
timer_printf 0
timer_start 357651
timer_vprintf 0
timetoi 0
traverseheap 84
traverseheap_r 13412
type_dim 7308
unexportall 6
vec_gunclone_deep 134575538
walltimer_delay 107869
walltimer_get 0
walltimer_start 252958

Generated by: LCOV version 1.16