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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - basemath - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30851-7844d7b3a5) Lines: 1882 2002 94.0 % Date: 2026-05-03 09:26:29 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57629514
Q_to_Fp	226838
Qdivii	143114929
Qdivis	1762588
Qdiviu	151450912
Zp_nosquare_m1	42
_serprec	8187556
addQp	4763057
addRc	310795647
addRq	1302
addTp	7
add_intmod_same	3411647
add_rfrac	3017298
add_rfrac_scal	8823993
add_scal	29439151
add_ser_scal	417285
addqf	77
addsub_frac	40954872
addsub_frac_i	14260354
addsub_polmod	7210
addsub_polmod_scal	13598740
addsub_pp	19974354
conj_i	31556855
conjvec	84
divRc	2918811
divRq	301
divTp	3674
div_T_scal	7295999
div_intmod_same	341544
div_polmod_same	38150
div_rfrac	1187510
div_rfrac_pol	260657
div_rfrac_scal	32435
div_scal_T	15557271
div_scal_pol	14531955
div_scal_rfrac	1052294
div_scal_ser	19096
div_ser	875766
div_ser_scal	1543591
divcR	23431440
divfq	42
divpT	1204910
divpp	13212013
divqf	63
divrunextu	213762963
fix_rfrac	207018
gadd	6258662523
gaddsg	270816357
gconj	390611
gdiv	455364379
gdivgs	13378421
gdivgu	61804525
gdivgunextu	1583803
ginv	38494206
gmul	8962697567
gmul2n	150460321
gmulsg	244399285
gmulug	283938451
gred_rfrac2	39476029
gred_rfrac_simple	57633715
gsqr	1344052147
gsub	2905133457
gsubsg	3270049
inv_polmod	192398
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24594111
mulRc	355306659
mulRq	2387
mulTp	4985894
mul_gen_rfrac	161376
mul_intmod_same	2987655
mul_polmod	2674945
mul_polmod_same	8647444
mul_polmod_scal	3284724
mul_rfrac	7910292
mul_rfrac_scal	10435532
mul_scal	198407030
mul_self_scal	7664021
mul_ser_scal	323974
mulcIR	11906912
mulcc	281732414
mulcxI	15655365
mulcxmI	2985980
mulcxpowIs	5564937
mulpp	17505556
mulqf	28
mulqq	1127
mulrfrac	38072529
pol2ser	6378562
quad_polmod_conj	18669
quad_polmod_mul	5861861
quad_polmod_norm	18669
rfrac_denom_mul_scal	9852099
ser_add	4094177
ser_normalize	7658
setfrac	15159016
sqr_polmod	426119
sqr_ser_part	113907
sqrq	70
sub_intmod_same	1017835
transtype	154223893
utoi_sign	65172590
warn_coercion	126

Generated by: LCOV version 1.16