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 30674-be81ecfdd4) Lines: 1138 1487 76.5 %
Date: 2026-02-12 09:23:52 Functions: 134 162 82.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
bl_rotleft 66015009
bl_rotright 60377595
blockbalance 2855475045
blockdelete 1578778431
blockheight 11883129097
blockinsert 1730975384
cgetg_copy_avma 1053111084
cgetlist_avma 620
chk_gc_upto 0
clone_lock 388097196
clone_unlock 328710568
clone_unlock_deep 59317454
clonesearch 775471070
copy_bin 495856228
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 13844
err_init_msg 13704
err_recover 13049
errname 27109
export_add 59
export_del 24
export_get 1500
exportall 6
f_getheap 6664
fix_height 3086159176
fix_size 747534
gc_all_unsafe 27366656
gc_dec 6030795163
gc_slice_unsafe 327303733
gc_stack_update 1236998905
gclone 237255159
gclone_refc 0
gcloneref 37888
gcopy 4794229396
gcopy_av0 4025693224
gcopy_av0_canon 32
gcopy_avma 3343488369
gcopy_lg 742
gdisplay 3703
gerepile 0
getabstime 1912
getdebugvar 371427
getheap 84
getstack 7
gettime 3718
getwalltime 8
gp_context_restore 13124
gp_context_save 145076
gsizebyte 175
gsizeclone 237255436
gsizeclone_i 3436132903
gsizeword 2214450
gunclone 388320229
gunclone_deep 3278924007
icopy_avma_canon 12
init_universal_constants 1900
is_in_block 235728977
list_internal_copy 7019
listassign 7019
listcopy 730
listinit 0
msgtimer 0
name_numerr 0
new_chunk_resize 14
newblock 238100398
numerr_name 27109
obj_check 6033191
obj_checkbuild 1506924
obj_checkbuild_padicprec 539
obj_checkbuild_prec 568477
obj_checkbuild_realprec 399100
obj_free 187243
obj_init 2532834
obj_insert 2661140
obj_insert_shallow 173523
obj_reinit 42
os_signal 20840
pari_add_defaults_module 1900
pari_add_module 1890
pari_close 1890
pari_close_blocks 366183
pari_close_export 1890
pari_close_opts 1890
pari_daemon 76
pari_err 56812
pari_err2GEN 56801
pari_err2str 21848
pari_err_display 13070
pari_err_last 87481
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_init_blocks 373206
pari_init_defaults 1900
pari_init_errcatch 373620
pari_init_export 1900
pari_init_functions 1900
pari_init_opts 1900
pari_init_timer 1900
pari_mainstack_alloc 373772
pari_mainstack_free 373762
pari_mainstack_malloc 373772
pari_mainstack_mextend 494455
pari_mainstack_mfree 373762
pari_mainstack_mreset 494455
pari_mainstack_resize 445
pari_mainstack_setsize 494455
pari_mainstack_use 373248
pari_sig_init 3790
pari_sighandler 0
pari_sigint 0
pari_stackcheck_init 375107
pari_thread_alloc 371427
pari_thread_close 372025
pari_thread_free 371427
pari_thread_get_global 371427
pari_thread_init 373222
pari_thread_set_global 371217
pari_thread_start 371372
pari_thread_valloc 0
pari_version 7
pari_warn 774
paristack_alloc 1900
paristack_newrsize 452
paristack_resize 0
paristack_setsize 0
parivstack_reset 120683
parivstack_resize 0
pop_entree_block 389956
rndus 220026
setalldebug 1928
setdebug 127
setdebugvar 371219
shiftaddress 3120210266
shiftaddress_canon 24
taille0 4025963113
taille0_canon 32
timer 0
timer2 0
timer_aux 220018
timer_delay 110909
timer_get 1918
timer_printf 0
timer_start 356383
timer_vprintf 0
timetoi 8
traverseheap 84
traverseheap_r 13412
type_dim 7308
unexportall 6
vec_gunclone_deep 134575567
walltimer_delay 107191
walltimer_get 0
walltimer_start 251606

Generated by: LCOV version 1.16